Public bug reported:
Binary package hint: gnome-power-manager
The symptom of this is that when I click on the menu with my name on it,
and select "suspend", the laptop does nothing whatsoever.
The cause of that is gnome-power-manager that is stuck and that does not
do anything.
The "fix" that works every time is to kill it, wait 1 second, and
restart it from command line.
This happens to me every couple of weeks.
When it happened last time, I did strace and here's what I found:
potato::~/algebra.com==>strace -p 6554
Process 6554 attached - interrupt to quit
futex(0x9739150, FUTEX_WAIT_PRIVATE, 2, NULL^C <unfinished ...>
Process 6554 detached
ProblemType: Bug
ACAdapter: Present
Architecture: i386
Battery: Present
CPUScaling: Present
DistroRelease: Ubuntu 9.04
LaptopPanel: Present
Package: gnome-power-manager 2.24.2-2ubuntu8
ProcEnviron:
PATH=(custom, user)
SHELL=/bin/bash
SourcePackage: gnome-power-manager
Uname: Linux 2.6.28-15-generic i686
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
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gnome-power-manager hangs waiting on futex
https://bugs.launchpad.net/bugs/426268
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