[i945] [i945] (UXA) Intel Corporation 82945G/GZ Integrated Graphics Controller [8086:2772] (rev 02)

Well, next I'd like to forward this issue upstream, but first it must be retested on latest development version of Karmic to make sure the issue still happens there with the latest code. ISO images are available at http://cdimages.ubuntu.com/releases/karmic/. If you can reproduce it in the LiveCD environment, you shouldn't need to modify your installed system. Also please attach a fresh Xorg.0.log and dmesg from this testing.

So, I tested Karmic alpha 2, running on live cd. It was exactly like when I activated UXA on Jaunty. The whole System crashes after less than a minute.
On Karmic, all I need was to open a window to make it crash. I thought it was because of the fade animation. But I couldn't deactivate the effects because I can't even open the window.
Also, I couldn't get the Xorg.0.log nor the dmesg.

Karmic alpha-3 is now ready for testing. We really need the logs from the newer versions to take this any further. You should be able to get this via a LiveCD if you install openssh-server and ssh in from another computer. Otherwise, you may try to install the LiveCD image to a USB stick (System -> Administration -> USB startup disk creator) and enable persistent storage (you probably need at least a 2 GB USB stick for this to work. This should leave the logs on the USB stick for next boot.

Right, we need to have Xorg.0.log and dmesg in order to send this upstream.

Bad news. I downloaded Karmic alpha 3 and installed in my usb drive, as I always do.
More problems, but this time it's worse:
Gnome desktop just doesn't load.
After Ubuntu splash, the screen goes black with the "loading" cursor on the center of the screen, but it stays there loading forever. I can't hear a sound, and the usb drive LED shines a bit, then stops around three times, then stops forever.
I don't know if it's about Xorg and Intel anymore, so I'm gonna report another bug.
And, I'm sorry, no Xorg.0.log and dmesg AGAIN, since I couldn't log into the system.
I wanted to get the logs on Alpha 2, since it is the "closest to work" alpha release of Karmic for me, but this machine is not connected to a local network so I can't rely on openssh (am I wrong?).
And persistent storage is always enabled on my usb installs, but will I be able to get those saved logs afterwards if I never get to open a single window in my system?
I could download Alpha 2 again (I erased it as I downloaded alpha 3) and do this, but any help on how to get those logs would be appreciated.

Just tested Karmic Alpha 4. Desktop loads now, but it still freezes, good news is that now it takes longer, and I'm able to deactivate the special effects, then it doesn't freeze anymore.

Still, in order to upstream this bug we would need dmesg and Xorg.0.log. If you care to provide these files, I can forward the bug upstream so we can get it fixed.

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.

Sorry for taking too long. I've been reporting to the wrong bug.
Here's the situation on Beta:

Confirmed: still happens on Karmic Beta. And it's even worse. Worse than Alpha 1! It's freezing before I even get the chance to click on anything. I had the chance only once, and when I opened a window, it freezed. I can't even deactivate the Special Effects to work around. I can't get those logs either.

I'll attach dmesg, lspci and Xorg.0.log from Alpha 6, hope it will be useful.

Oh, tested Kubuntu Karmic beta, and there's NO such problem in it.
I don't understand. Isn't it supposed to be the same (but with KDE)?

It happend in the RC https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/459340

No, that's not the same issue here. Running from the live CD, it freezes right after desktop shows, even before I can move the mouse. I tried to upgrade from Karmic Alpha 6 (in which I can use it for minutes till it freezes), with effects disabled, and then enable them, but it really always takes less than 30 seconds to freeze.
But, even with effects disabled, Blender still crashes Ubuntu, just like it did on Jaunty.

On Karmic i386 (up to date as of 10/25/09) with a Foxconn Atom barebones. After logging in to gnome, I have a lockup within 5 seconds of a compiz effect, 3d effect (screensaver or other 3d app) appearing on the screen. Removing compiz from the system and disabling 3d screensavers avoids the lockup.

Just tested Ubuntu Karmic Final Release and it still freezes my system after I log in to gnome (less that 10 seconds). It's sad to know that Ubuntu is incompatible with my computer now.
Kubuntu runs as smooth as always, though running Blender 3D also freezes Kubuntu.

Is there any way to fall back to EXA? I can't even find my xorg.conf...

Pablo, Ubuntu and Kubuntu use the same underlying software, but the Gnome desktop may make some function calls that KDE doesn't and vice versa. There's no way to fall back to EXA since that part of the driver has been deleted a while ago. In the long run it wasn't possible to maintain three different memory managment schemes, especially when UXA makes much more sense than the others. You can get an xorg.conf by running X -configure or you may copy the default configuration listed in /var/log/Xorg.0.log.

For freeze bugs like this one, we need a batchbuffer dump. Take a look at
https://wiki.ubuntu.com/X/Troubleshooting/Freeze for how to do that. With the batchbuffer dump please also provide a fresh Xorg.0.log and dmesg output.

I got same problem.
Batchbuffer dump (https://wiki.ubuntu.com/X/Troubleshooting/Freeze) is attached.
dmesg & Xorg.0.log are included in attached file.

Operations
1. sudo INTEL_DEBUG=batch /etc/init.d/gdm restart
2. Set visual effects -> extra (compiz)
3. Window move by mouse operation.
4. Window swings (visual effect)
5. freeze occur
6. ssh & get Batchbuffer

Anything else?

takashi, since many different freeze bugs will lead to exactly the
same symptoms, we only take data from the computer that the bug report
was originally filed for. Otherwise, we might end up with different
underlying bugs in the same report and that only leads to confusion.

Your information is still valuable, but we need it in a new bug
report. Please file it with `ubuntu-bug xserver-xorg-video-intel` on
the affected computer. Even when Launchpad tries to convince you to
check other bug report, insist on filing a new one as we really need
that for this kind of bugs.

It may turn out later that the underlying problem is the same and that
we can mark one bug report as a duplicate of another. That doesn't
mean that both bug reports weren't useful.

OK. I understand.
Sorry for confusion.
I'll do it later.

This comment goes to bug 400934, bug 451518, bug 475429, bug 500686,
bug 501875, bug 342675, bug 4611163 and 493111.

We have had several reports of freezes (GPU hangs) on i945 chipsets
(945G, 945GM and 945GME, all of which uses the GMA950 graphics core)
in Karmic. I would like to get some testing going so that we may
identify the cause and give upstream all the information they need
(and possibly some they do not need) so that they can fix this before
Lucid is out. I have set up a wiki page to coordinate the effort:
https://wiki.ubuntu.com/X/Lucidi945Freezes . There is a list of test
that I think will be useful in order to isolate where the problem is
and a table where you can fill in your test results. If we're lucky
there is only one underlying problem, and we will probably get
consistent test results. Otherwise, different test results may group
the problems in different categories.

I realize that doing all the tests can be quite time consuming (it
calls for tests on both Karmic and Lucid), and if you are only able to
do some of the tests it would be nice if you could fill in those cells
in the test result table.

My initial guess is that the bug is in mesa, since it seems to be
related to 3D operations. It would be nice if we could also get some
testing of different mesa versions, but I'm not aware of any that are
pre-built yet.

I also have the same problem with Ubuntu 9.10. Is not usable.
In Ubuntu 9.04 the screen lock, but back when the mouse is moved.
And I know other people with the same problem.

The strange thing is that in Kubuntu 9:10 none of this happens and the video performance is good.

I have uploaded an older version of mesa to my "old" PPA: https://launchpad.net/~gomyhr/+archive/old/+packages . By testing this, we can find out if this is caused by a bug in mesa which is introduced after version 7.5.

Unfortunately, installing it is probably not as easy as just adding the PPA to /etc/apt/sources and do `sudo apt-get update; sudo apt-get upgrade`, since the version in the PPA is older than then one in karmic and I didn't do any PPA magic to make it want to upgrade anyway. The easiest way I can think about is probably to download all the deb-files for your architecture (*i386.deb) to an empty folder and do a `dpkg -i -O *.deb` in that folder. That will install only the packages that already have an installed version on your system.

If Karmic freezes with this version, I can try to go all the way back to the Jaunty version.

PS: I don't have a Karmic installation (I only have Jaunty and Lucid) so I haven't had a chance to test that the packages even work.

Sidney, if you would like to help it is better if you file your own bug report. With many people having slightly different results in the same bug report it easily gets very confusing. Therefore we prefer one reporter per bug report for xorg-related bugs.

> In Ubuntu 9.04 the screen lock, but back when the mouse is moved.
> And I know other people with the same problem.
I've got same problem in 9.04.
This also occurs in 9.10.

For anyone on Lucid, I have uploaded a version of Lucid's libdrm to my PPA which has this patch: http://cgit.freedesktop.org/mesa/drm/commit/?id=4f0f871730b76730ca58209181d16725b0c40184 .

This patch is supposed to fix many of the freeze problems that has occurred lately. The PPA is at https://launchpad.net/~gomyhr/+archive/standard .

Using lucid I enabled UXA in my xorg.conf and my 3D performance is much better and more stable.

Thank you for your feedback, Virgil.

Lucid now has libdrm 2.4.18, which includes the fix from comment #34. Please test this!

I'm on Lucid, up-to-date, with libdrm, and STILL I get the freeze.

2010/3/23 Chris Halse Rogers <email address hidden>

> Thank you for your feedback, Virgil.
>
> Lucid now has libdrm 2.4.18, which includes the fix from comment #34.
> Please test this!
>
> ** Changed in: xserver-xorg-video-intel (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> [i945] [i945] (UXA) Intel Corporation 82945G/GZ Integrated Graphics
> Controller [8086:2772] (rev 02)
> https://bugs.launchpad.net/bugs/400934
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete
>
> Bug description:
> Binary package hint: xserver-xorg-video-intel
>
> Things seem a lot more beautiful: glxgears works fine and no major visible
> problem (maybe the minimize effect was a little less fast?), but it turns
> the whole system unusable. It totally freezes Ubuntu (can't even move the
> cursor), sometimes after dragging a window, sometimes just after moving the
> cursor! Anyway, it doesn't take longer than a minute to freeze, so, I
> switched back to EXA (unfortunnely...).
>
> ProblemType: Bug
> Architecture: i386
> DistroRelease: Ubuntu 9.04
> Package: xserver-xorg-video-intel 2:2.6.3-0ubuntu9.4
> ProcEnviron:
> LANG=pt_BR.UTF-8
> SHELL=/bin/bash
> ProcVersion: Linux version 2.6.30-020630-generic (root@zinc) (gcc version
> 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #020630 SMP Wed Jun 10 09:45:40 UTC 2009
> SourcePackage: xserver-xorg-video-intel
> Uname: Linux 2.6.30-020630-generic i686
>
> [lspci]
> 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub
> (rev 02)
> 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated
> Graphics Controller (rev 02)
>
>
> To unsubscribe from this bug, go to:
>
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/400934/+subscribe
>

--
Pablo Almeida
http://www.google.com/profiles/pabloalmeidaff9

[Expired for xserver-xorg-video-intel (Ubuntu) because there has been no activity for 60 days.]