Bug 15695

Summary: calling pm-suspend freezes system
Product: Drivers Reporter: Werner Lemberg (wl)
Component: Video(DRI - Intel)Assignee: drivers_video-dri-intel (drivers_video-dri-intel)
Severity: blocking CC: greg, maciej.rutecki, rjw, sndirsch, tiwai
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.34-rc3-7-pae (openSuSE 11.3 factory kernel) Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 7216, 14885    

Description Werner Lemberg 2010-04-05 05:13:18 UTC
[Dell Inspiron 6400; Intel 945GM]

The title says all.  The graphics system is switched to the console, then everything freezes without a trace in any of the log files.  This is the first kernel of the 2.6.34 series I'm able to boot.  Running 2.6.33-26 this problem doesn't exist.

Note that I *suspect* that it is a problem with the graphics driver (since usually pm-hibernate on 2.6.33 fails with similar symptoms).

Please tell me how to improve this report, if possible or necessary.
Comment 1 Werner Lemberg 2010-04-05 05:14:52 UTC
A typo: My current running system is 2.6.33-27.
Comment 2 Werner Lemberg 2010-04-06 06:15:27 UTC
BTW, I'm not even able to do a normal shut down; the last step, this is, switching off the display, fails.
Comment 3 Werner Lemberg 2010-05-06 04:52:00 UTC
Running 2.6.34-rc6-28-pae (from openSuSE's factory kernel), both pm-suspend and pm-hibernate work again.
Comment 4 Stefan Dirsch 2010-05-06 05:14:19 UTC
Yes, disabling FBC (frame buffer compression) on 945GM (upstream code change) fixed the issue.