640x480 Only After Install of Gutsy Tribe5, Compaq C500t, Intel 945 Chipset, Celeron, 512K

I see that this is somewhat of a duplicate to the old bug #3731.

However, I would like to point out that in my case the original install from the live CD failed to configure xorg.config correctly - while the subsequent dpkg-reconfigure of xorg.config worked fine. For this reason I think it is additional information, and therefore I am not marking this message as a duplicate.

LM

I've marked one duplicate for this bug. The thing is that 'screens and graphics' with a 'plug 'n play' screen incorrectly writes the xorg.conf. I'll attach the xorg.conf of a clean gutsy beta live cd boot, and the xorg.conf after using screens and graphics to set the resolution to 1280x800. I'll try the new displayconfig-gtk from the upgrade of today 10/2. Weird thing is that sometimes 'screens and graphics' really sets the 1280x800 resolution so as long as you don't log out, you think everything is ok.

Strange! After the upgrade, a log out, log in sequence restarted X in 1280x800. Whereas my xorg.conf is exactly the same as the 'right after live cd boot' I uploaded earlier. When I use screens and graphics, it says 'plug 'n play', 1280x800. When I confirm that (just pressing 'ok'), we're back at square one: 640x480 from the strange xorg.conf.afterselection. Selecting 'lcd panel 1280x800' and 'widescreen' works perfectly: good xorg.conf (attached) and a good resolution.

FYI - I have had no more issues on my Compaq C500t after performing the dpkg-reconfigure. However I have not attempted to change resolutions (why would I when my native is 1280 x 800). -LM

I can confirm this behaviour on my Dell Inspiron 6000 (Intel 915 graphics). Live CD doesn't detect the correct resolution of 1280x800 (it chooses 1024x768) and when I choose this 1280x800 (from the Plug'n'Play monitor), it incorrectly writes 640x480 as the only available res. into xorg.conf, which shows up on X restarting.

dpkg-reconfigure does detect the correct resolution, and fixes this.

Curious as to why the native resolution wasn't detected correctly in the first place, as it has been since at least Dapper

On Wed, 2007-10-03 at 02:37 +0000, lesmyer wrote:
> FYI - I have had no more issues on my Compaq C500t after performing the
> dpkg-reconfigure. However I have not attempted to change resolutions
> (why would I when my native is 1280 x 800). -LM
>

The dpkg-reconfigure writes a new xorg.conf. The displayconfig-gtk
(Screens and Graphics) writes a new xorg.conf. They're both two ways of
accomplishing the same thing. Dpkg-reconfigure has worked for ages.
However, since Ubuntu is focusing on usability and it has introduced the
shining new 'screens and graphics', that's the one this bug report is
about and that's the thing that should be fixed. Not merely the 'I can
only get 640x480' problem, which is easily fixed, but the 'I can only
get 640x480 from Screens and Graphics' problem.

Ok - Thanks - now I understand what you are saying. The problem only happens when the Screen and Graphics is used to write a new xorg.conf and therein lies the bug.

LM

Yep. Didn't want to hijack your bug report, but that was the reason that on install, you only get 640x480. Apparently, displayconfig-gtk, or some underlying thingy, is being called to write the original install xorg.conf.