[Bug 27529] [rs690m] Graphics corruption with ati x1200

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27529

--- Comment #26 from Ian! D. Allen <idallen at idallen.ca> 2010-09-02 08:05:40 PDT ---
Ubuntu 10.4 user with a pair of ATI FireMV 2250 cards (RV516 chip)
running Xinerama across three monitors (one monitor output is unused)
using radeon driver on an AMD-64.

Over time, single characters in Firefox get mangled.  Typing those
characters into text boxes also shows the mangling.  Changing the Firefox
font size up or down (CTRL-plus, CTRL-minus) restores the characters
at the new size; setting the font back to the original size (CTRL-zero)
returns the mangling again.  Sometimes the characters disappear entirely.
Restarting Firefox didn't help until I added "Option "AccelMethod" "XAA"
to my xorg.conf file; now, restarting Firefox clears the font problem.
(It didn't before - I had to restart the X server.)

I didn't have any font problems when I ran a single FireMV 2250 with
an Nvidia card for the third monitor, but that was on a previous kernel
as well.  It's the dual 2250 (on the new kernel) that is now misbehaving.

Downloading the xorg-edgers radeon driver 6.13.99 didn't help.