[Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right

Do any of the following Ubuntu bugs seem to match the symptoms you're describing? Bug #75214, bug #100105, bug #139546, bug #153425

Similar, but no amount of logging in/out, sending commands to the console, using virtual terminals, seems to help. My problem is immediately noticeable once past gdm, and I wish I could do something to make the problem worse - at least I'd have some idea. I've tried changing the login to a "plain" debian style login, and tried using just a simple window manager. The only thing I can do is reduce the resolution to 1400x1050 which now has black pillars on each side, but at least it is centered. 1680x1050 is the native resolution on this 20" iMac PPC display.

I also put my Feisty xorg.conf in service on Hardy, but it didn't make any difference.

I had to go back to Gutsy since I erased my Alpha image, and the latest daily builds (19 Feb) no longer recognize the cdrom, hard drive, load modules, or do partitioning. Different bugs - I'll try again with a new image in a few days.

What makes it easier is that with PPC, there is no choice but to use the standard nv driver on this model. It might be a bit late for Gutsy, but I'll keep plugging away at it...

Bummer, so it's not the same bug I've been hunting, which means that I have no way to reproduce this.

My guess is that this is a bug in the nv driver -- have you searched the upstream bugzilla (http://bugs.freedesktop.org/)? If there isn't a report already there, you may want to consider reporting it. Be sure to include your xorg.conf, lspci output, Xorg.0.log, etc. If you do report it, be sure to update this bug report with a link to the upstream bug.

If you feel like sinking many hours into troubleshooting this, you can try compiling the nv 2.0.0 driver in Gutsy and see what happens. If it works, you can use git to sift through the various commits between 2.0.0 and 2.1.5 until you identify the commit that causes it to break.

> My problem is immediately noticeable once past gdm

Does this mean that the problem doesn't exist when you're at the gdm login screen? If so, that's very interesting -- you'll want to mention that in the upstream bug report.

Sorry I couldn't be more useful!

FIXED!!!

Oh man, thank you so much for pointing me in the right direction. What I did was copy from my existing working Feisty install nv_drv.so to the /usr/lib/xorg/modules/drivers on the Gutsy machine.

Bingo. Ahhhh... so nice. I'm more of a cookbook compiler based on the recommendations of others so I don't know how I could help there. I did some quick searching and saw that someone else had done this to an ATI driver, although I don't think it was related to Ubuntu.

I was mistaken also in that it did affect gdm as well. I was just masking it using a plain-jane login screen.

At least it shows that it is the NV driver for sure, and I'm a very happy camper right now using the Feisty nv driver on Gutsy. I'll have to try this feisty nv driver on Hardy in a few days.

Thanks again!

That's great news!

> At least it shows that it is the NV driver for sure

Exactly, which is a big step in getting this bug resolved. Because you were able to narrow down the bug to the driver, I'm marking the bug as confirmed and setting the affected package to xserver-xorg-video-nv (which anyone the ability to do, FYI).

Since the problem is now known to be in the driver, I would highly recommend filing an upstream bug report. It's still possible that the bug is Ubuntu-specific, but it's more likely that it's an upstream problem.

In addition to Hardy, I'm also going to try the latest Debian Lenny testing as well.

It also appears that doing an entire xserver downgrade back to Feisty would work, but right now I'm unsure how stable the system is by just copying over this one working Feisty nv_drv.so file.

Is there any benefit or problem by just using one tiny file from Feisty to fix this rather than swapping out the entire xserver package?

So far I haven't noticed any problems.

> Is there any benefit or problem by just using one tiny file from Feisty
> to fix this rather than swapping out the entire xserver package?

One benefit is that it is simple and easy to do.

Possible problems:
  1. The older driver version might contain ugly bugs that aren't present in the newer version. However, you already know that the newer driver has at least one ugly bug that the older driver doesn't, so this is pretty much a moot point.
  2. In general, binaries compiled with different compilers could have ABI (application binary interface) mismatch problems, but Feisty and Gutsy use the same version of gcc so that's not going to be a problem in this case.
  3. You might notice problems if a driver binary is linked against an older, incompatible library or if the driver API has changed. However, since you don't get any unresolved symbol errors and the X driver API probably doesn't change very rapidly, you're almost certainly OK.
  4. Your fix isn't managed by apt. This is probably the biggest problem. If a new version of the driver comes out, running 'sudo apt-get upgrade' will probably overwrite your nv_drv.so and force you to copy it over again.

Downgrading the driver package should take care of problems 2 through 4. You shouldn't need to downgrade all of X. Building an older xserver-xorg-video-nv package for Gutsy is easy if you use prevu:

   $ sudo apt-get install prevu
   $ sudo prevu-init # answer yes when it asks if you want your /etc/apt/sources.list updated
   $ prevu http://archive.ubuntu.com/ubuntu/pool/main/x/xserver-xorg-video-nv/xserver-xorg-video-nv_2.0.0-0ubuntu3.dsc

Once the package is done building, fire up synaptic, reload the package information, find xserver-xorg-video-nv, go to Package->Force Version, select the older version, and install it. You may also need to go to Package->Lock Version after downgrading, but I'm not sure since I've never forced an older version of a package.

I found the above URL by going to <http://packages.ubuntu.com/>, searching for xserver-xorg-video-nv for Feisty, and copying the link to the .dsc file under the "Download Source Package" section in the right-hand side of the package details page.

Hope this helps!

Wow, that's GREAT info! Definitely going into my permanent archives.

Attached is my lspci -vvnn to help keep track of this hardware (20" G5 Rev-A 1.8 gHz iMac (early model, no als, no isight)

Thanks again for all your help!

I did a quick search for this problem in the xorg bugzilla (http://bugs.freedesktop.org/) but didn't find anything. Have you filed a bug there yet? If not, please do so. I don't have the hardware so I wouldn't be much help to the nv driver folks.

Thanks for the reminder. bug filed.

That felt good. and again, tnx for your help. If you don't see it, let me know..

Update: This problem exists in Debian Lenny testing as well. While lenny is plagued with cd-recognition issues on my machine, I was able to do a dist-upgrade of Etch just to get a simple Lenny system up with xorg and twm window manager. Bummed to see the problem there, but I guess it shows that the nv driver bug is xorg specific now, and not just Debian or Ubuntu. I didn't even try to downgrade to the Etch driver.

Hi all,

I'm quite new to Linux so I don't know much about bug reporting etc. I just wondered where I could follow up on this bug? I also thought it could be usefull to mention that I've encoutered the same bug in Fedora 8, Yellowdog 6.0 and OpenSuse 10.3, so it is not specific to Ubuntu. I have the same Imac version as Brian G.

Kind regards,

Pemi

@Pemi: If you look at the top of this bug page, you'll see "Assigned to freedesktop-bugs #14659". This means that the bug was reported upstream to the authors of the nv driver. If you click on that link, it will take you to the upstream bug report.

@a7x: Thanx for the information.

This issue also occurs on my G4 iMac 20 inch. BTW, I find it difficult to believe that my old g$ iMac has the same video hardware as the G5 iMac as shown via:

ubuntu@ubuntu:~$ lspci -v|grep -A6 nV;uname -a
0000:00:10.0 VGA compatible controller: nVidia Corporation NV34M [GeForce FX Go5200] (rev a1) (prog-if 00 [VGA controller])
 Subsystem: nVidia Corporation Powerbook G4
 Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 48
 Memory at 91000000 (32-bit, non-prefetchable) [size=16M]
 Memory at a0000000 (32-bit, prefetchable) [size=128M]
 Expansion ROM at 90000000 [disabled] [size=128K]
 Capabilities: <access denied>

Linux ubuntu 2.6.24-16-powerpc #1 Thu Apr 10 12:48:35 UTC 2008 ppc GNU/Linux

I solved this last night on the iMac I describe above with an 8.10 Intrepid Ibex Alternate PPC install CD. It seems that the idea of using the nv_drv.so from Feisty will not work with Intrepid due to a version mismatch. I am not at that computer, so I am doing this off of memory:
# switch to root
sudo su -
# update apt
apt-get update
# get the source
apt-get source xserver-xorg-video-nv
# get the denpencies needed to build the source
apt-get build-dep xserver-xorg-video-nv
# undo the commit detailed here http://cgit.freedesktop.org/xorg/driver/xf86-video-nv/commit/?id=ec78618d685759a39d386e9929661037b167fe68
# I came to this conclusion based on https://bugs.freedesktop.org/show_bug.cgi?id=14659#c2 & https://bugs.freedesktop.org/show_bug.cgi?id=4686#c13
cd xserver-xorg-video-nv*/
sed -i '/pNv->Architecture == NV_ARCH_30/,+1d' src/nv_dac.c
# build the driver
./configure && make
# backup the existing driver
cp /usr/lib/xorg/modules/drivers/nv_drv.so /usr/lib/xorg/modules/drivers/nv_drv.so.original
# copy the new driver over top of the old (don't know if I needed the .la and .lai, but I copied them)
cp -f src/.lib/nv_drv.* /usr/lib/xorg/modules/drivers/
# restart xorg
/etc/init.d/gdm restart

like I said, that is all from memory, so let me know if something doesn't work for you. You can reach me at my first name at my last name dot com.
--Richard Bronosky

I have had several people contact me about my solution. As a result I have made a patch that can be applied instead of the sed command in my prior comment. I have tried to get the following patch applied up stream.

diff --git a/src/nv_dac.c b/src/nv_dac.c
index b6df107..1e7fcb7 100644
--- a/src/nv_dac.c
+++ b/src/nv_dac.c
@@ -114,8 +114,10 @@ NVDACInit(ScrnInfoPtr pScrn, DisplayModePtr mode)
        horizStart = horizTotal - 5;
        horizEnd = horizTotal - 2;
        horizBlankEnd = horizTotal + 4;
+#if !defined(__powerpc__)
        if(pNv->Architecture == NV_ARCH_30)
            horizTotal += 2;
+#endif
     }

     pVga->CRTC[0x0] = NV_Set8Bits(horizTotal);

I'm one of those several people - perhaps the most recent at this particular time - who's contacted RIchard about his solution. I'm not running Ubuntu- rather I'm running Debian. Anyway, following instruction in Richard's prior comment (and with his gracious assistance via email) I no longer suffer with the insufferable off-center screen! Richard's fix works. Looking around the web, seems a lot of iMac users are frustrated by this problem, and I can say from having installed several distros it's a problem across the board. As a newbie, I'll admit I was ready to give up on delving into linux until I was able to find, via great assistance at the Fedora forum, a solution for this under Fedora. Able to run Fedora on my iMac, I got comfortable enough with linux to buy a bargain PC laptop and install Fedora on there and confront the special challenges therein . Now, trying out different distros seems to be one of the fun parts of learning linux- and thanks to Richard I can run Debian without running off the right side of my screen! I do hope this patch gets applied as needed so us powerpc users can take advantage of upcoming releases without having to worry about this.

Please can someone help with this. I have recently installed Jaunty on my 20in imac ppc and get the dreaded shifted display. I have been trying the above solutions and only get so far before nothing happens.

Please can someone tell me in simple step by step procedures how to apply the patch (i am a total beginner). The steps above that seem to work up until:

# copy the new driver over top of the old (don't know if I needed the .la and .lai, but I copied them)
cp -f src/.lib/nv_drv.* /usr/lib/xorg/modules/drivers/

when in says it cannot find the file.

Any help would be greatly received as I have been struggling with this for days and need a helping hand.

Matthew,
Please tell me what directory you are in when you issue the command and the exact complete error string. The description you give is ambiguous as to whether the source files or destination directory cannot be found. (Also, I have not tried this on Jaunty, but am willing to update the process to accommodate.)

As far as I know this is the root:
root@matthew-desktop:~/xserver-xorg-video-nv-2.1.12#

I then get the following message:
cp: cannot stat `src/.lib/nv_drv.*': No such file or directory

This is after following the steps you describe above

Hi everyone,

Actually, I no longer have it installed … however as I recall in Jaunty on
my PPC iMac G5 20" I was able to choose the nouveau driver instead and
restart, with no need to apply the patch.

I had some trouble doing it but got it to work. I posted info to
ppclinux.info:

http://www.ppclinux.info/boards/1/topics/show/517

Let me know if that works,
Ray

On Thu, Oct 29, 2009 at 11:14 AM, RichardBronosky
<email address hidden>wrote:

> Matthew,
> Please tell me what directory you are in when you issue the command and the
> exact complete error string. The description you give is ambiguous as to
> whether the source files or destination directory cannot be found. (Also, I
> have not tried this on Jaunty, but am willing to update the process to
> accommodate.)
>
> --
> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
> https://bugs.launchpad.net/bugs/189844
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in X.Org X server: In Progress
> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>
> Bug description:
> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
> standard NV driver, the resolution of 1680x1050 is detected correctly but is
> shifted to the right by about 1/2 inch, which continues back to the left
> hand side. In other words, the trash can and quit icons are mostly cut off
> on the right, and appear on the left!
>
> Unfortunately, the mouse won't go past a boundary on the left hand side to
> access them, even if I did want to live with the display shifted like this.
> This issue first appeared for me in Gutsy as well, and nothing seems to be
> able to move the display back to the left a little. I have tried xrandr,
> xvidtune, custom modelines, etc. Only Feisty and below have the 1680x1050
> screen centered properly. With an Imac, there are no manual screen movement
> adjustments that can be made. It feels as though something is locking out
> any attempt to center the screen, since the resolution seems correct.
>
> Interestingly enough, if I take a screen-shot and view it, the screen-shot
> looks perfect, but isn't centered properly in real life. I've tried the
> usual dkpg-reconfigure routines, but it's not that the resolution is
> incorrect, it is just that the screen want to dive over to the right and
> wrap back to the left....
>
> [lspci]
> 0000:f0:10.0 VGA compatible controller [0300]: nVidia Corporation NV34M
> [GeForce FX Go5200] [10de:0329] (rev a1) (prog-if 00 [VGA])
> Subsystem: nVidia Corporation Unknown device [10de:0010]
>
>

By the way, that site loads very slow- when it loads at all. if you can't
get it to load here's the cached page from Google:

http://74.125.93.132/search?q=cache:e8eiBaeq2sUJ:www.ppclinux.info/boards/1/topics/show/517+nouveau+driver+ubuntu+powerpc+libraryeye&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a

Richard- do you know if new release of Ubuntu is going to be ported to PPC
by the community soon? Will it default to nouveau driver? If so, maybe
Matthew can just wait & install that instead.

Ray

On Thu, Oct 29, 2009 at 12:02 PM, Raymond Rehayem <email address hidden>wrote:

> Hi everyone,
>
> Actually, I no longer have it installed … however as I recall in Jaunty on
> my PPC iMac G5 20" I was able to choose the nouveau driver instead and
> restart, with no need to apply the patch.
>
> I had some trouble doing it but got it to work. I posted info to
> ppclinux.info:
>
> http://www.ppclinux.info/boards/1/topics/show/517
>
> Let me know if that works,
> Ray
>
>
> On Thu, Oct 29, 2009 at 11:14 AM, RichardBronosky <<email address hidden>
> > wrote:
>
>> Matthew,
>> Please tell me what directory you are in when you issue the command and
>> the exact complete error string. The description you give is ambiguous as to
>> whether the source files or destination directory cannot be found. (Also, I
>> have not tried this on Jaunty, but am willing to update the process to
>> accommodate.)
>>
>> --
>> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
>> https://bugs.launchpad.net/bugs/189844
>> You received this bug notification because you are a direct subscriber
>> of the bug.
>>
>> Status in X.Org X server: In Progress
>> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>>
>> Bug description:
>> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
>> standard NV driver, the resolution of 1680x1050 is detected correctly but is
>> shifted to the right by about 1/2 inch, which continues back to the left
>> hand side. In other words, the trash can and quit icons are mostly cut off
>> on the right, and appear on the left!
>>
>> Unfortunately, the mouse won't go past a boundary on the left hand side to
>> access them, even if I did want to live with the display shifted like this.
>> This issue first appeared for me in Gutsy as well, and nothing seems to be
>> able to move the display back to the left a little. I have tried xrandr,
>> xvidtune, custom modelines, etc. Only Feisty and below have the 1680x1050
>> screen centered properly. With an Imac, there are no manual screen movement
>> adjustments that can be made. It feels as though something is locking out
>> any attempt to center the screen, since the resolution seems correct.
>>
>> Interestingly enough, if I take a screen-shot and view it, the screen-shot
>> looks perfect, but isn't centered properly in real life. I've tried the
>> usual dkpg-reconfigure routines, but it's not that the resolution is
>> incorrect, it is just that the screen want to dive over to the right and
>> wrap back to the left....
>>
>> [lspci]
>> 0000:f0:10.0 VGA compatible controller [0300]: nVidia Corporation NV34M
>> [GeForce FX Go5200] [10de:0329] (rev a1) (prog-if 00 ...

Sorry, trouble with Gmail- I apologize if following is sent twice- currently
showing as 'draft' in Gmail so I'm hitting 'send' again. RR

On Thu, Oct 29, 2009 at 12:06 PM, Raymond Rehayem <email address hidden>wrote:

> By the way, that site loads very slow- when it loads at all. if you can't
> get it to load here's the cached page from Google:
>
>
> http://74.125.93.132/search?q=cache:e8eiBaeq2sUJ:www.ppclinux.info/boards/1/topics/show/517+nouveau+driver+ubuntu+powerpc+libraryeye&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a
>
>
> Richard- do you know if new release of Ubuntu is going to be ported to PPC
> by the community soon? Will it default to nouveau driver? If so, maybe
> Matthew can just wait & install that instead.
>
> Ray
>
>
> On Thu, Oct 29, 2009 at 12:02 PM, Raymond Rehayem <email address hidden>wrote:
>
>> Hi everyone,
>>
>> Actually, I no longer have it installed … however as I recall in Jaunty on
>> my PPC iMac G5 20" I was able to choose the nouveau driver instead and
>> restart, with no need to apply the patch.
>>
>> I had some trouble doing it but got it to work. I posted info to
>> ppclinux.info:
>>
>> http://www.ppclinux.info/boards/1/topics/show/517
>>
>> Let me know if that works,
>> Ray
>>
>>
>> On Thu, Oct 29, 2009 at 11:14 AM, RichardBronosky <
>> <email address hidden>> wrote:
>>
>>> Matthew,
>>> Please tell me what directory you are in when you issue the command and
>>> the exact complete error string. The description you give is ambiguous as to
>>> whether the source files or destination directory cannot be found. (Also, I
>>> have not tried this on Jaunty, but am willing to update the process to
>>> accommodate.)
>>>
>>> --
>>> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
>>> https://bugs.launchpad.net/bugs/189844
>>> You received this bug notification because you are a direct subscriber
>>> of the bug.
>>>
>>> Status in X.Org X server: In Progress
>>> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>>>
>>> Bug description:
>>> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
>>> standard NV driver, the resolution of 1680x1050 is detected correctly but is
>>> shifted to the right by about 1/2 inch, which continues back to the left
>>> hand side. In other words, the trash can and quit icons are mostly cut off
>>> on the right, and appear on the left!
>>>
>>> Unfortunately, the mouse won't go past a boundary on the left hand side
>>> to access them, even if I did want to live with the display shifted like
>>> this. This issue first appeared for me in Gutsy as well, and nothing seems
>>> to be able to move the display back to the left a little. I have tried
>>> xrandr, xvidtune, custom modelines, etc. Only Feisty and below have the
>>> 1680x1050 screen centered properly. With an Imac, there are no manual
>>> screen movement adjustments that can be made. It feels as though something
>>> is locking out any attempt to center the screen, since the resolution seems
>>> correct.
>>>
>>> Interestingly enough, if I take a screen-shot and view it, the
>>> screen-shot looks perfect, but isn't centered properly in real life. I've
>>> tried the usual dkpg-reconfi...

Sorry, trouble with Gmail- I apologize if following is sent thrice-
currently showing as 'draft' in Gmail so I'm hitting 'send' again. RR

>
>
> On Thu, Oct 29, 2009 at 12:06 PM, Raymond Rehayem <email address hidden>wrote:
>
>> By the way, that site loads very slow- when it loads at all. if you can't
>> get it to load here's the cached page from Google:
>>
>>
>> http://74.125.93.132/search?q=cache:e8eiBaeq2sUJ:www.ppclinux.info/boards/1/topics/show/517+nouveau+driver+ubuntu+powerpc+libraryeye&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a
>>
>>
>> Richard- do you know if new release of Ubuntu is going to be ported to PPC
>> by the community soon? Will it default to nouveau driver? If so, maybe
>> Matthew can just wait & install that instead.
>>
>> Ray
>>
>>
>> On Thu, Oct 29, 2009 at 12:02 PM, Raymond Rehayem <email address hidden>wrote:
>>
>>> Hi everyone,
>>>
>>> Actually, I no longer have it installed … however as I recall in Jaunty
>>> on my PPC iMac G5 20" I was able to choose the nouveau driver instead and
>>> restart, with no need to apply the patch.
>>>
>>> I had some trouble doing it but got it to work. I posted info to
>>> ppclinux.info:
>>>
>>> http://www.ppclinux.info/boards/1/topics/show/517
>>>
>>> Let me know if that works,
>>> Ray
>>>
>>>
>>> On Thu, Oct 29, 2009 at 11:14 AM, RichardBronosky <
>>> <email address hidden>> wrote:
>>>
>>>> Matthew,
>>>> Please tell me what directory you are in when you issue the command and
>>>> the exact complete error string. The description you give is ambiguous as to
>>>> whether the source files or destination directory cannot be found. (Also, I
>>>> have not tried this on Jaunty, but am willing to update the process to
>>>> accommodate.)
>>>>
>>>> --
>>>> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
>>>> https://bugs.launchpad.net/bugs/189844
>>>> You received this bug notification because you are a direct subscriber
>>>> of the bug.
>>>>
>>>> Status in X.Org X server: In Progress
>>>> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>>>>
>>>> Bug description:
>>>> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
>>>> standard NV driver, the resolution of 1680x1050 is detected correctly but is
>>>> shifted to the right by about 1/2 inch, which continues back to the left
>>>> hand side. In other words, the trash can and quit icons are mostly cut off
>>>> on the right, and appear on the left!
>>>>
>>>> Unfortunately, the mouse won't go past a boundary on the left hand side
>>>> to access them, even if I did want to live with the display shifted like
>>>> this. This issue first appeared for me in Gutsy as well, and nothing seems
>>>> to be able to move the display back to the left a little. I have tried
>>>> xrandr, xvidtune, custom modelines, etc. Only Feisty and below have the
>>>> 1680x1050 screen centered properly. With an Imac, there are no manual
>>>> screen movement adjustments that can be made. It feels as though something
>>>> is locking out any attempt to center the screen, since the resolution seems
>>>> correct.
>>>>
>>>> Interestingly enough, if I take a screen-shot and view it, the
>>>> screen-shot looks perfect, but...

Matthew-
well, here's what somehow worked for me and I'm a total novice so I'm afraid
I can't go much past this since I no longer have it installed.

open terminal and type:

sudo gedit /etc/X11/xorg.conf

(it creates a blank xorg file. I forget where it put it, which directory)

open this 'blank" xorg.conf and pasted in code:

Section "Device"
Identifier "Configured Video Device"
BusID "PCI:240:16:0"
*Driver* "*nouveau*"
EndSection

into it and saved it.

code from-
http://ubuntuforums.org/showthread.php?t=1137500

I rebooted and it worked.

Not sure how…

Richard- does this sound like bad advice? It worked for me.

On Thu, Oct 29, 2009 at 12:02 PM, Matthew <email address hidden> wrote:

> As far as I know this is the root:
> root@matthew-desktop:~/xserver-xorg-video-nv-2.1.12#
>
> I then get the following message:
> cp: cannot stat `src/.lib/nv_drv.*': No such file or directory
>
> This is after following the steps you describe above
>
> --
> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
> https://bugs.launchpad.net/bugs/189844
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in X.Org X server: In Progress
> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>
> Bug description:
> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
> standard NV driver, the resolution of 1680x1050 is detected correctly but is
> shifted to the right by about 1/2 inch, which continues back to the left
> hand side. In other words, the trash can and quit icons are mostly cut off
> on the right, and appear on the left!
>
> Unfortunately, the mouse won't go past a boundary on the left hand side to
> access them, even if I did want to live with the display shifted like this.
> This issue first appeared for me in Gutsy as well, and nothing seems to be
> able to move the display back to the left a little. I have tried xrandr,
> xvidtune, custom modelines, etc. Only Feisty and below have the 1680x1050
> screen centered properly. With an Imac, there are no manual screen movement
> adjustments that can be made. It feels as though something is locking out
> any attempt to center the screen, since the resolution seems correct.
>
> Interestingly enough, if I take a screen-shot and view it, the screen-shot
> looks perfect, but isn't centered properly in real life. I've tried the
> usual dkpg-reconfigure routines, but it's not that the resolution is
> incorrect, it is just that the screen want to dive over to the right and
> wrap back to the left....
>
> [lspci]
> 0000:f0:10.0 VGA compatible controller [0300]: nVidia Corporation NV34M
> [GeForce FX Go5200] [10de:0329] (rev a1) (prog-if 00 [VGA])
> Subsystem: nVidia Corporation Unknown device [10de:0010]
>
>

.

On Thu, Oct 29, 2009 at 12:18 PM, Raymond Rehayem <email address hidden>wrote:

> Matthew-
> well, here's what somehow worked for me and I'm a total novice so I'm
> afraid I can't go much past this since I no longer have it installed.
>
> open terminal and type:
>
> sudo gedit /etc/X11/xorg.conf
>
> (it creates a blank xorg file. I forget where it put it, which directory)
>
> open this 'blank" xorg.conf and pasted in code:
>
> Section "Device"
> Identifier "Configured Video Device"
> BusID "PCI:240:16:0"
> *Driver* "*nouveau*"
> EndSection
>
> into it and saved it.
>
> code from-
> http://ubuntuforums.org/showthread.php?t=1137500
>
> I rebooted and it worked.
>
> Not sure how…
>
> Richard- does this sound like bad advice? It worked for me.
>
>
>
>
> On Thu, Oct 29, 2009 at 12:02 PM, Matthew <email address hidden> wrote:
>
>> As far as I know this is the root:
>> root@matthew-desktop:~/xserver-xorg-video-nv-2.1.12#
>>
>> I then get the following message:
>> cp: cannot stat `src/.lib/nv_drv.*': No such file or directory
>>
>> This is after following the steps you describe above
>>
>> --
>> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
>> https://bugs.launchpad.net/bugs/189844
>> You received this bug notification because you are a direct subscriber
>> of the bug.
>>
>> Status in X.Org X server: In Progress
>> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>>
>> Bug description:
>> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
>> standard NV driver, the resolution of 1680x1050 is detected correctly but is
>> shifted to the right by about 1/2 inch, which continues back to the left
>> hand side. In other words, the trash can and quit icons are mostly cut off
>> on the right, and appear on the left!
>>
>> Unfortunately, the mouse won't go past a boundary on the left hand side to
>> access them, even if I did want to live with the display shifted like this.
>> This issue first appeared for me in Gutsy as well, and nothing seems to be
>> able to move the display back to the left a little. I have tried xrandr,
>> xvidtune, custom modelines, etc. Only Feisty and below have the 1680x1050
>> screen centered properly. With an Imac, there are no manual screen movement
>> adjustments that can be made. It feels as though something is locking out
>> any attempt to center the screen, since the resolution seems correct.
>>
>> Interestingly enough, if I take a screen-shot and view it, the screen-shot
>> looks perfect, but isn't centered properly in real life. I've tried the
>> usual dkpg-reconfigure routines, but it's not that the resolution is
>> incorrect, it is just that the screen want to dive over to the right and
>> wrap back to the left....
>>
>> [lspci]
>> 0000:f0:10.0 VGA compatible controller [0300]: nVidia Corporation NV34M
>> [GeForce FX Go5200] [10de:0329] (rev a1) (prog-if 00 [VGA])
>> Subsystem: nVidia Corporation Unknown device [10de:0010]
>>
>>
>

I did this and indeed it corrects it but i get a few flashing white dashes on the screen. Is this on yours too?

Way to go!

No, I had those dashes a few times in a different install (Fedora) on an
Intel COMPAQ pc laptop but very rarely & just restarted and it went away-

have you tried restarting? Does it continue to be a problem?

Ray

On Thu, Oct 29, 2009 at 12:32 PM, Matthew <email address hidden> wrote:

> I did this and indeed it corrects it but i get a few flashing white
> dashes on the screen. Is this on yours too?
>
> --
> [Hardy-Alpha 4 PPC] Screen resolution correct but shifted to the right
> https://bugs.launchpad.net/bugs/189844
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in X.Org X server: In Progress
> Status in “xserver-xorg-video-nv” package in Ubuntu: Confirmed
>
> Bug description:
> On my PPC G5 iMac 20" built-in display with Hardy-Alpha 4, using the
> standard NV driver, the resolution of 1680x1050 is detected correctly but is
> shifted to the right by about 1/2 inch, which continues back to the left
> hand side. In other words, the trash can and quit icons are mostly cut off
> on the right, and appear on the left!
>
> Unfortunately, the mouse won't go past a boundary on the left hand side to
> access them, even if I did want to live with the display shifted like this.
> This issue first appeared for me in Gutsy as well, and nothing seems to be
> able to move the display back to the left a little. I have tried xrandr,
> xvidtune, custom modelines, etc. Only Feisty and below have the 1680x1050
> screen centered properly. With an Imac, there are no manual screen movement
> adjustments that can be made. It feels as though something is locking out
> any attempt to center the screen, since the resolution seems correct.
>
> Interestingly enough, if I take a screen-shot and view it, the screen-shot
> looks perfect, but isn't centered properly in real life. I've tried the
> usual dkpg-reconfigure routines, but it's not that the resolution is
> incorrect, it is just that the screen want to dive over to the right and
> wrap back to the left....
>
> [lspci]
> 0000:f0:10.0 VGA compatible controller [0300]: nVidia Corporation NV34M
> [GeForce FX Go5200] [10de:0329] (rev a1) (prog-if 00 [VGA])
> Subsystem: nVidia Corporation Unknown device [10de:0010]
>
>

restarted and gone! Great thanks everyone for your help.

Damn, it does seem to come back. The display is no longer shifted but i do get a flicker on the screen. It seems to come and go. Anyone else experience this? Maybe there is another fix for the shifted display that does not result in flicker that seems to occur using Driver nouveau.

sorry to repost...the display is centered and looks great. The problem of the flickering screen ( dashes appearing rapidly) is not a major problem but is annoying so would be grateful if someone can help. It seems to appear after about 20 mins and if i switch off leave for a time it disappears on reboot.

Matthew Sorry for your ongoing troubles. Like I said I'm a linux newbie and
have exhausted my know-how on this problem.
I'll be honest- I installed linux (starting with Fedora, then trying Debian,
Opensuse, community Ubuntu jaunty…) on my iMac to see if I'd be comfortable
running Linux on a cheap pc laptop (the Compaq I bought) at first I was
amazed it worked and frustrated with screen problem. All the help I found in
the forums from Richard and others really impressed upon me the sense of
community among Linux users and I felt very comfortable getting a PC laptop
and not having to splurge on a Mac laptop. I started with Fedora on my
laptop - but the constant troubleshooting convinced me Fedora is really not
for a casual user like myself and I switched to Mint which overall Im very
happy with.

In the meantime, between Fedora 10 & 11 and also with various things in Suse
and Ubuntu not working (at one point I had successfully setup a quarduple
boot with Mac OS Tiger, Ubuntu 9.04, OpenSuse, and Fedora 11 all running on
my ppc G5!) I started to feel that a basic working powerPC linux OS was too
difficult for me to maintain (I kept having trouble with media files, even
open source FLACS and OGGS playback in Fedora and OpenSuse, couldn't
RIP/Encode in Ubuntu; GNASH failed to play most FLASH content and there's
no FLASH from Adobe for PPC linux, etc)

I'm not a developer. I'm just a desktop user (writer, artist, web / email
user, etc) wanting a working desktop and very attracted to open source
idea/l . However, in the short time I've been using linux, the already
dwindling support for PowerPC has shrunk further, and more directly I
finally accepted that everything I need to do worked better in Tiger (I'll
never pay to upgrade my 5 year old iMac to Leopard) and so just recently
removed all Linux partitions from my iMac.

That being said, just the other night for some reason I was thinking of
installing whatever next version of Linuc for PPC update comes along (not
Fedora though, I think since 11 came out it seems my PPC install just wasn't
working right)

and, I must add- on my laptop I bought in April I almost never boot into
Windows. I used to rarely sometimes when running Fedora 10; after a certain
Fedora 11 update my display wouldn't work so I switched to Mint and I love
using Linux compared to Windows on a PC (I've always disliked Microsoft
products- functionality and design). But on my PowerPC, I think I'm
sticking with an old Apple OS till the thing just stops working. However, it
looks like OpenSuse (which I believe the open source community has some
understandable issues with due to some Novell-Microsoft dealing) will still
be releasing their upcoming OS for PPC and also perhaps the recently release
Ubuntu will be ported to PPC by the community and resolve this display
problem)

Sorry to be a naysayer, but my experience and hate to say is that if you
want on OS that 'just works' on your old iMac (same model I have) the only
thing know of is OSX. If you really want to get into Linux, maybe someday
pick up a cheap PC to play with.

RAy

On Sun, Nov 1, 2009 at 6:52 AM, Matthew <email address hidden> wrote:

> sorry to repost...the displa...

__

On Sun, Nov 1, 2009 at 8:32 AM, Raymond Rehayem <email address hidden>wrote:

> Matthew Sorry for your ongoing troubles. Like I said I'm a linux newbie
> and have exhausted my know-how on this problem.
> I'll be honest- I installed linux (starting with Fedora, then trying
> Debian, Opensuse, community Ubuntu jaunty…) on my iMac to see if I'd be
> comfortable running Linux on a cheap pc laptop (the Compaq I bought) at
> first I was amazed it worked and frustrated with screen problem. All the
> help I found in the forums from Richard and others really impressed upon me
> the sense of community among Linux users and I felt very comfortable getting
> a PC laptop and not having to splurge on a Mac laptop. I started with Fedora
> on my laptop - but the constant troubleshooting convinced me Fedora is
> really not for a casual user like myself and I switched to Mint which
> overall Im very happy with.
>
> In the meantime, between Fedora 10 & 11 and also with various things in
> Suse and Ubuntu not working (at one point I had successfully setup a
> quarduple boot with Mac OS Tiger, Ubuntu 9.04, OpenSuse, and Fedora 11 all
> running on my ppc G5!) I started to feel that a basic working powerPC linux
> OS was too difficult for me to maintain (I kept having trouble with media
> files, even open source FLACS and OGGS playback in Fedora and OpenSuse,
> couldn't RIP/Encode in Ubuntu; GNASH failed to play most FLASH content and
> there's no FLASH from Adobe for PPC linux, etc)
>
> I'm not a developer. I'm just a desktop user (writer, artist, web / email
> user, etc) wanting a working desktop and very attracted to open source
> idea/l . However, in the short time I've been using linux, the already
> dwindling support for PowerPC has shrunk further, and more directly I
> finally accepted that everything I need to do worked better in Tiger (I'll
> never pay to upgrade my 5 year old iMac to Leopard) and so just recently
> removed all Linux partitions from my iMac.
>
> That being said, just the other night for some reason I was thinking of
> installing whatever next version of Linuc for PPC update comes along (not
> Fedora though, I think since 11 came out it seems my PPC install just wasn't
> working right)
>
> and, I must add- on my laptop I bought in April I almost never boot into
> Windows. I used to rarely sometimes when running Fedora 10; after a certain
> Fedora 11 update my display wouldn't work so I switched to Mint and I love
> using Linux compared to Windows on a PC (I've always disliked Microsoft
> products- functionality and design). But on my PowerPC, I think I'm
> sticking with an old Apple OS till the thing just stops working. However, it
> looks like OpenSuse (which I believe the open source community has some
> understandable issues with due to some Novell-Microsoft dealing) will still
> be releasing their upcoming OS for PPC and also perhaps the recently release
> Ubuntu will be ported to PPC by the community and resolve this display
> problem)
>
> Sorry to be a naysayer, but my experience and hate to say is that if you
> want on OS that 'just works' on your old iMac (same model I have) the only
> thing know of is OSX. If you really...

Thank you for reporting this issue about xserver-xorg-video-nv. Starting with Lucid, Ubuntu is transitioning to using the -nouveau video driver by default instead of -nv. The reason for this change is because upstream development for the -nv driver has been quite slow. We hope bugs will get fixed faster with -nouveau as well.

Because of this, I'm closing this bug report at this time. I'm marking it wontfix because what you describe is probably a valid issue, but we do not have intentions to work on it in Ubuntu. If you would still like to see this issue investigated, I would encourage you to file it upstream.