Public bug reported:
My older laptop (IBM ThinkPad A21p) ran perfectly well in Ubuntu 7.10.
This laptop has an ATi Rage Mobility 128 M3 (16MB) graphics chip that
uses the "ati" or "r128" driver. It has a 1600x1200, 15.4" LCD and a
VGA output. When I got my 8.04 CD, I put it in and booted up to a
horribly scrambled mess of a display. The screen was divided up into 3
sections and it was mostly unusable because you can't see anything. I
took pictures of what happened and attached them to this report. I then
rebooted and used "safe graphics mode", which allowed me to install it
(low resolution, but it didn't scramble the display). After installing,
I booted up to even more screen resolution errors, as the login screen
doesn't show correctly (also pictured below) and it only detects 800x600
as the highest resolution (also pictured). When I attached a 1280x1024
CRT monitor to the VGA port, the laptop would allow me to select
1280x1024 as the maximum resolution and would display at that resolution
on both the CRT and the built in LCD panel (but not at 1600x1200, only
1280x1024). I unplugged the VGA monitor, logged out, and logged back in
and it is again stuck at 800x600.
Since 800x600 is practically unusable, this bug has forced me to use
Windows XP on this computer, which I don't want to do. I like Ubuntu
much better but with an unusable resolution it's practically useless.
8.04 worked fine on all of my other PC's (including my new HP dv9700t
laptop), it only failed on my ThinkPad.
** Affects: ubuntu
Importance: Undecided
Status: New
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ThinkPad A21p - Screen Resolution Problems
https://bugs.launchpad.net/bugs/231455
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