Public bug reported:
I have a Dell Studio 17, and I'm using the open source drivers (xserver-
xorg-video-radeon).
In Karmic, suspend/resume (from RAM) worked fine. After the upgrade to
Lucid, I get a black screen after resuming. I have to turn the power
off to get any response.
I've attached the relevant parts of kern.log and pm-suspend.log (the
suspend occurs at 09:49:19, the resume at 09:49:40. The only errors I
can find are these lines in kern.log
May 1 09:49:40 ryle kernel: [ 574.836534] [drm:r600_ring_test] *ERROR*
radeon: ring test failed (scratch(0x8504)=0xCAFEDEAD)
May 1 09:49:40 ryle kernel: [ 574.836537] [drm:r600_resume] *ERROR* r600
startup failed on resume
** Affects: ubuntu
Importance: Undecided
Status: New
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resume from suspend produces black screen (regression on Lucid with Dell Studio)
https://bugs.launchpad.net/bugs/572892
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