http://bugzilla.kernel.org/show_bug.cgi?id=12769
Summary: 3D performance gets very choppy after suspend/resume
cycle (intel video)
Product: Drivers
Version: 2.5
KernelVersion: 2.6.29-rc5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI)
AssignedTo: [email protected]
ReportedBy: [email protected]
Latest working kernel version: 2.6.27.10
Earliest failing kernel version: 2.6.29-rc5 (haven't tested any in between)
Distribution: Debian SID (+ some components from experimental)
Hardware Environment:
Thinkpad X200s, Intel Graphics Media Accelerator 4500MHD
Software Environment:
xserver-xorg 1:7.4~5, xserver-xorg-video-intel 2:2.6.1-1, libgl1-mesa-dri
7.3-1, libgl1-mesa-dri 7.3-1
Problem Description:
Everything works perfectly (including 3D, e.g. compiz) until I suspend the
laptop either to RAM or to disk. After successful resume 3D performance is very
choppy, meaning it stops for half or quarter a second frequently. Even a
restart of X does not get back to original performance. Whole laptop needs to
be restarted for this.
Steps to reproduce:
Start laptop with kernel option vga=0, enter X, -> everything works
Switch to VT1 and back to VT7, _> everything still o.k.
Suspend to RAM or DISK, resume, back to X, -> choppy 3D
Leave X and restart X, -> still choppy 3D
Restart laptop, -> everything o.k. (until next suspend)
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