Red Hat Bugzilla – Bug 86104
ati radeon mobility 9000 fails to recover from normal blanking
Last modified: 2007-04-18 12:52:00 EDT
I have a radeon mobility 9000 and 4.3.0-2.1. The radeon driver doesn't seem
to recover properly from screen blanking (there are several horizontal
white bars with spurious activity around them). It recovers fine from a
suspend however, so I find this strange.
This is on a Dell Inspiron 8200, so after going to a console, and using
Fn-D (blank screen) and waking it up a few times (almost always twice), the
display recovers, and I can go back into X.
I'm not using DRI if it makes a difference.
Created attachment 90588 [details]
Created attachment 90589 [details]
Please attach X log file from a problem run.
Created attachment 90595 [details]
During the run represented in this log, there were several suspend/resume
cycles which went fine and seem to be in the log, but I don't see anything from
when the screen blanks due to a (hardware) timeout. I believe the blank is
triggered from BIOS, not from dpms. In fact, I just tried 'xset dpms force off'
and it was fine.
Oddly, when I was running the vesa driver with 4.2.x in RH8, this problem
I tried a boot without apmd, acpi, or bios related blanking, and there were no
problems. It really seems that this is a problem when recovering from a bios
blanking since dpms blanking works fine, as does a recover from suspend.
Closing bug as NOTABUG, problem resolved as hardware having a buggy BIOS.