Created attachment 437501 [details]
hardware profile of affected system
Description of problem:
HP Pavillion ZT3300 laptop fails to enter hibernation intermittently when compiz / desktop effects is enabled. Hibernation is back to normal after turning compiz off.
Version-Release number of selected component (if applicable):
Name : compiz
Arch : i686
Version : 0.8.6
Release : 1.fc13
Automatic hibernation (on low power) or sleep (on lid closed) hangs after blanking the screen, without turning off the power. Forceful shutdown is needed. After restart, system doesn't resume, but runs a new session.
Manual hibernation (pm-hibernate) fails on first attempt (screen blanks for a moment and returns without actual hibernation), and succeeds on second attempt.
Steps to Reproduce:
1.enable compiz/desktop effects
2.attempt to hibernate either manually (system->shutdown->hibernate) or by closing lid or waiting till battery is low
Hibernation either aborts or proceeds for some time, then halts without turning off the power.Forceful shutdown and restart result in a new session
The system should hibernate normally.
Turning off the desktop effects or compiz entirely seems to fix the problem. Turning off just the desktop effects, leaving compiz on, seems to somewhat mitigate the problem.
Attaching hardware configuration
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