Bug 3957 - zt3000: lockup when entering S3
Summary: zt3000: lockup when entering S3
Status: REJECTED DUPLICATE of bug 3599
Alias: None
Product: ACPI
Classification: Unclassified
Component: Other (show other bugs)
Hardware: i386 Linux
: P2 normal
Assignee: acpi_other
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2004-12-27 22:10 UTC by Michael Grigoriev
Modified: 2004-12-28 14:30 UTC (History)
0 users

See Also:
Kernel Version: 2.6.10
Subsystem:
Regression: ---
Bisected commit-id:

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Description Michael Grigoriev 2004-12-27 22:10:57 UTC 
Distribution: Gentoo
Hardware Environment: HP zt3000 (centrino, etc, sister model to nx7000)
Software Environment: vanilla 2.6.10 with minimum options (no preempt, fb, apic,
etc)
Problem Description:
My zt3000 locks up when attempting to enter S3 sleep mode.
By enabling full debug, I managed to trace the problem down to the following
line in hardware/hwsleep.c:
status = acpi_hw_register_write (ACPI_MTX_DO_NOT_LOCK,
ACPI_REGISTER_PM1A_CONTROL, PM1Acontrol);
around line 350.
Trace shows it entering regiester write, but never returning.
The screen stays on, the cursor blinks, but otherwise the machine is dead.

S4 seems to work fine. Any ideas?
Comment 1 Shaohua 2004-12-27 22:50:35 UTC 
Did you try the patch in bug 3599?
Comment 2 Michael Grigoriev 2004-12-28 14:30:32 UTC 
Thank you for the quick responce, David.
The bus arbiter patch from bug 3599 does indeed fix my problem. 

*** This bug has been marked as a duplicate of 3599 ***
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