On Saturday, July 06, 2013 03:59:49 PM Rafael J. Wysocki wrote:
Hi,
I've just started to play with a new Acer Aspire S5 test box and noticed that garbage is displayed after resume from suspend to RAM with the 3.10 kernel (under KDE 4.10.3 on openSUSE 12.3). The display corruption goes away after killing X and restarting it.
The CPU is a Core i5-3317U (Ivy Bridge), i915 graphics.
That doesn't happen with 3.9 (same config otherwise). It also doesn't happen with my older Sandy Bridge-based box (with 3.10), so I suspect Ivy Bridge specifics.
Is this known? Do you want me to bisect?
Most likely, this has been introduced by this commit:
commit 19b2dbde5732170a03bd82cc8bd442cf88d856f7 Author: Chris Wilson chris@chris-wilson.co.uk Date: Wed Jun 12 10:15:12 2013 +0100
drm/i915: Restore fences after resume and GPU resets
At least I'm not able to reproduce it with that commit reverted. With that commit in I was able to reproduce it quite readily on machines with Ivy Bridge and Sandy Bridge processors.
Thanks, Rafael