Bug 3957

Summary:	zt3000: lockup when entering S3
Product:	ACPI	Reporter:	Michael Grigoriev (mag)
Component:	Other	Assignee:	acpi_other
Status:	REJECTED DUPLICATE
Severity:	normal
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.10	Subsystem:
Regression:	---	Bisected commit-id:

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 ***