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[Launchpad Bug Tracker <483464@xxxxxxxxxxxxxxxxxx>]

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Here is my previous unsolved bug about the problem:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
openchrome/+bug/350330

Now I have some more information about it:

xrandr shows graphics modes that are not available for my LCD matrixs
(i.e matrix is up to 1024x768 , xrandr shows few modes upper than it,
i.e. 1920x1440)

I think ubuntu get's the highest mode by default ( IN: instalator ,
usplash , gdm login manager , gdm user session)

Instalator: I've installed Ubuntu 9.10 seeing only upper left part of
the screen (1024x768 from 1920x1440) by clicking ENTER as "next" button.

usplash : I've changed /etc/usplash.conf to 1024x768 , add vga=791 to
grub.conf , and made sudo update-initramfs ....

gdm user session: I've used change resolution tool to make it 1024x768

gdm login manager: it's still 1920x1440 ....

So, now when booting, first i can see white ubuntu logo i good
resolution , then I see this brown progress screen and login manager in
1920x1440, after provide login and password it's going to proper
1024x768 (brown progress and desktop)


1) After CTRL+ALT+F1 (F2 etc) i have screen with artefacts (lines in different colors) , i'm sure its bad video mode.

2) Once CTRL+ALT+F1 got me into proper text mode, but only once and I
dont know why.

3) 
Video card (after lspci)
01:00.0 VGA compatible controller: VIA Technologies, Inc. CN400/PM800/PM880/PN800/PN880 [S3 UniChrome Pro] (rev
02)

** Affects: xserver-xorg-video-openchrome (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
[PM800]Bad graphics modes.
https://bugs.launchpad.net/bugs/483464
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