Red Hat Bugzilla – Bug 584919
[r100] switch to 800x600 results in black screen
Last modified: 2010-09-06 12:58:47 EDT
Resolution switching hasn't worked on my Thinkpad T42 with a radeon mobility 7500 since early F12.
Linux prettyboy 184.108.40.206-24.fc13.i686 #1 SMP Tue Mar 30 18:49:12 UTC 2010 i686 i686 i386 GNU/Linux
Created attachment 408398 [details]
DRM debug log of modeswitch to 800x600
Created attachment 408400 [details]
Xorg switches back to 1024x768 after the confirmation timeout
Created attachment 408401 [details]
X log of the resolution switch and switch back
Created attachment 408402 [details]
startup dmesg log
When you select the new resolution and hit Apply in the Monitors capplet, the screen goes black, the backlight goes off, then quickly comes back on, but the panel stays black. Hitting ESC or waiting for the confirmation dialog to timeout brings me back to 1024x768 which is the native panel resolution and everything is fine.
Dan can you attach Xorg log with UMS please ? (nomodeset=1 on kernel boot line)
Dan please confirm that kernel :
Fix the issue for you too.
*** Bug 547598 has been marked as a duplicate of this bug. ***
Darn, didn't see the scratch build in time... I'm currently running 220.127.116.11-147.fc13.i686 and it's still not fixed there.
Could you do another scratch build wtih whatever patch you had in that kernel and I'll retest now that I have the hardware again?
Again, the following packages still don't work:
Please try 18.104.22.168-20 from koji
Hot damn that works. Thanks!
We don't close the bug until the kernel is released, we just mark it modified. That makes it much easier to see which bugs are going to be fixed with the next release.