[Bugme-new] [Bug 10620] New: X does not resume (intel chipset)
bugme-daemon at bugzilla.kernel.org
bugme-daemon at bugzilla.kernel.org
Thu May 8 06:53:03 PDT 2008
http://bugzilla.kernel.org/show_bug.cgi?id=10620
Summary: X does not resume (intel chipset)
Product: Power Management
Version: 2.5
KernelVersion: 2.6.26-rc1-110-ga153063
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Hibernation/Suspend
AssignedTo: power-management_other at kernel-bugs.osdl.org
ReportedBy: romano.giannetti at gmail.com
Latest working kernel version:2.6.25.1
Earliest failing kernel version:2.6.26-rc1
Distribution:Ubuntu 8.04 Hardy
Hardware Environment:see attached lshw.txt
Software Environment:xserver-xorg-video-intel 2:2.2.1-1ubuntu12
Problem Description:
Suspend to ram, using the distribution scripts or just echo mem >
/sys/power/state.
On resume, the screen stays blank (most of the time), with just the cursor
shown (sometime you can move it, sometime no). The system is nevertheless
working. Sometime you can recover by hitting ctr-alt-backspace and reenter X,
sometime not.
I can't test on console because after X starts, console is busted for me
(that's not a regression, it has been like that since at least 2.6.23, and it
was decided it was a x driver problem, but it's still not fixed for me...
see https://bugs.launchpad.net/bugs/182865 )
I attach .config, lshw output, and two syslogs. syslog_2.6.25.txt shows a
successfull suspend/resume cycle in 2.6.25.1.
syslog_new.txt shows a boot of the new kernel, then a suspend/resume with ended
with a blank video, resumed with a ctrl-alt-backspace, and finally a new
suspend/resume ended with a blank screen that could not be resumed by a
ctrl-alt-backspace, so sysrq-b was needed.
Strange things I see:
There is a WARN_ON at line 1485 of the log (sysdev_driver_register()) but seems
unrelated.
A lot of "ACPI handle has no context!" during suspend/resume
A very scary "trying to get vblank count for disabled pipe 0" that smells as a
possible guilty failure...
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