Ubuntu
xserver-xorg-video-vesa package

  1. Bug #138087
  2. Comment #0

Comment 0 for bug 138087

Revision history for this message
Andreas Gustafsson (gson) wrote : [gutsy tribe 5] Changing screen resolution garbles display

Binary package hint: xserver-xorg-video-ati

Booting the Gutsy Tribe 5 i386 desktop CD on an MSI RS482M4
motherboard, with the VGA output of the on-board graphics
adapter connected to an iiyama ProLite E380s 1024x768 LCD display
and selecting the "Start Ubuntu in safe graphics mode" option
(because of bug #133192), the system boots successfully into
a 1024x768 desktop.

However, if I then go to Preferences / Screen resolution and select
one of the other resolutions offered, 800x600 or 640x480, the picture
disintegrates into diagonal lines reminiscent of the picture you would
get if you lose horizontal sync on a CRT.

The effect is otherwise similar to the screenshot in bug #133192, but
in my case, the mouse cursor is not shown normally but disintegrates
along with the rest of the picture.

When the screen reverts to to its original 1024x768 resolution as a
result of me not confirming the new resolution setting, the picture
is once again normal.

lspci identifies the graphics chipset as:

  01:05.0 VGA compatible controller: ATI Technologies Inc RS482 [Radeon Xpress 200]