Strange visual artifacts in upper left corner of screen which
respond to mouse activity.....
e.schuele at computer.org
Tue Apr 25 01:36:29 UTC 2006
I just recently began using GDM. This problem is reproducible by
enabling/disabling GDM on my machine.
When GDM is enabled, I get four equally sized rectangles in the upper
left corner of my screen. They are not visible at first but are
responsive to mouse activity. Meaning, they slowly fill in as I move
the mouse... and fill in almost completely, as soon as I click the mouse
These squares draw on top of any window located there. That window will
carry the discoloration with it if I move the window. The discolored
squares continue, in the original location, after removing any window
from the region.
I originally had load glx, drm, and dri in my xorg.conf file... but
since removed them just as an experiment. It had no effect on the
problem. I also had DefaultFbBpp set to 32. Removed that as well to no
avail. Just swinging wildly here.
The squares are visible on GDM itself, and any window manager I've used
(enlightenment and twm).
I've got (from dmesg)
ATI Radeon LW RV200 Mobility 7500 M7
model Generic PS/2 mouse, device ID (a.k.a synaptics touchpad)
I use Driver "radeon" in xorg.conf.
Without GDM, no rectangles. No other portupgrades occurred when this
behavior appeared. Just the installation/configuration of GDM.
Any ideas what is going on and how to remedy it?
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