http://bugzilla.kernel.org/show_bug.cgi?id=12348
Summary: MSI M673 Laptop does not poweroff after shutdown
Product: ACPI
Version: 2.5
KernelVersion: 2.6.28
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Off
AssignedTo: acpi_power-...@kernel-bugs.osdl.org
ReportedBy: d...@inhex.net
Latest working kernel version: probably 2.6.25 (see below)
Earliest failing kernel version: 2.6.26
Distribution: Debian Unstable
Hardware Environment: MSI M673 laptop. 32 bit mode
Software Environment:
Problem Description:
Sometimes my laptop does not poweroff automatically just after shutdown or
hibernation. I've asked about this at linux-pm
(https://lists.linux-foundation.org/pipermail/linux-pm/2008-December/019172.html)
but it was about nvidia-tainted kernel. Now I'm able to reproduce this often
enough without any binary modules. I'm currently using "nv" driver with X.org
1.5.
This happens not every boot. And I don't know exactly how to reproduce it. It
happens sometimes after playing movies with -vo xv. The most successfull way to
reproduce is to try hibernation while KDE4 starts. I've verified this with both
TuxOnIce as well as with in-kernel swsusp. It also happens with just shutdown
(/sbin/halt). And I should press power button for 4-5 seconds to turn laptop
off.
I'm unsure about previous working kernel version. 2.6.25 was working IIRC, but
I've flashed updated BIOS after this. Currently 2.6.25.20 fails too. I can't
revert it, since old one is not available for download. I've asked MSI support
for older BIOS version.
Maybe some userspace update was cause of this. I'm unsure.
Hang is happens at drivers/acpi/hardware/hwsleep.c
do {
status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
} while (!in_value);
I've verified it by adding printk() to this loop. It just prints such printk
message as fast as possible.
I'm attaching dmesg of 2.6.28 boot. Please let me know if I can provide
anything else.
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