[Bug 30447] Re: Lockup problems with both the free xorg ATI driver and the proprietary fglrx driver, using various ATI cards

[Paul]

I'm also getting lockup problems now that I've upgraded from breezy to
dapper, with the accompanying ATI driver upgrade.  My graphics card is:

0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon
Mobility M6 LY

... on a Thinkpad X31.  I am using the free xorg ATI driver.  The bug I
have (which seems to be the same as at least some of the complaints on
the thread) are semi-random full lockups when there are large screen
redraws, particularly things involving fullscreen.

I used to lock up after a few minutes when switching between screens in
metacity or moving around large windows, but now after removing "load
dri" and "load glx" and adding option "NoAccel" I've only been locking
up when I am doing something in fullscreen or switching between
fullscreen and non-fullscreen (my trigger for this is watching a movie
with mplayer as "mplayer -vo sdl -ao sdl -framedrop foo.avi" or "mplayer
-vo sdl -ao esd -framedrop foo.avi" and then hitting "f" to switch
between fullscreen and non-full screen).

There also seems to be a timing element involved---fullscreen will work
when I've just rebooted my machine and logged into gdm, but after a few
minutes fullscreen will lock up with either the current screen, or a set
of black and white dots (often with a small rectangle somewhere on the
screen).

-- 
Lockup problems with both the free xorg ATI driver and the proprietary fglrx driver, using various ATI cards
https://launchpad.net/bugs/30447