Red Hat Bugzilla – Bug 142932
DVI screen glitches with Radeon 9200SE
Last modified: 2007-11-30 17:10:56 EST
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Description of problem:
I have a Radeon 9200SE card attached to a Samsung SyncMaster 213T via
the DVI connector. The screen periodically goes blank for a couple of
seconds, after which it displays "Digital" (signifiying the DVI input)
-- this is indicative of the input signal having been lost.
I have tried to figure out when it happens, and all I have been able
to conclusively determine is that I'm always moving the mouse when it
happens. It tends to happen in "bursts"; meaning three or more
instances of the same problem in very short order. It's reliably
reproducible on the time frame of an hour or so.
I have tried disabling the hardware cursor, and I have DRI disabled
due to bug 123511.
It it a very frustrating problem; it makes the machine almost too
annoying to use.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
I will attach xorg.conf, Xorg.0.log, and lspci output to this bug.
I should add that I did *not* see this problem when I was running
stock FC2 on this system. Either this is an X server regression, or
something else has changed.
Created attachment 108586 [details]
Created attachment 108587 [details]
Created attachment 108588 [details]
lspci -vv output
Could be related to bug #143872 perhaps? Please upgrade to xorg-x11
from rawhide, which will be released soon as an update for FC3.
It contains numerous radeon driver and other fixes.
Please update the report with your rawhide testing results.
Thanks in advance.
Setting status to "NEEDINFO", awaiting feedback of rawhide xorg-x11
Does the problem persist with xorg-x11 6.8.2? We'll be releasing
it as an update soon. Another recommendation is to disable
renderaccel on Radeon, by putting:
into the device section of the xorg.conf
Please update the bug report with your results from the testing requested
in comment #5 through 7, so we can proceed with this issue.
Thanks in advance.
This might very well be a duplicate of bug #143872. Can you review that
bug and indicate if it sounds the same as yours?
If DDC probe fails for whatever reason, it is possible the wrong resolution
gets used, and the panel is scaling it, which generally looks horrible.
I just upgraded to xorg-x11-6.8.2-1.FC3.13.x86_64 this morning and am
now experiencing exactly the same behavior. I have a very similar
Shuttle SN85G4-V2 motherboard
Ati radeon 9200se
Samsung SyncMaster 213T LCD
Monitor connected to DVI output
What's a little odd is that previously I was running
xorg-x11-6.8.1-12.FC3.21.x86_64 and this problem was NOT
occuring. Yet this is the version that this bug was
originally posted for.
I see the screen blink out then back, even when there is no
appearent activity (no mouse movement etc.).
Note that I have also been experiencing the problem noted in
bug 123511 (screen blinks while doing GL). So after reading the
note on this bug above, I disabled DRI (commented out loading
dri module in xorg.conf).
After disabling DRI, both problems have improved. I have not
yet had an instance of the screen blanking out.
*** This bug has been marked as a duplicate of 143872 ***