Public bug reported: 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: ubuntu Importance: Undecided Status: New -- Bad graphics modes. https://bugs.launchpad.net/bugs/483464 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs