Bug 8415

Summary:	Resume sometimes reboots/freezes Laptop
Product:	ACPI	Reporter:	sinndoc (saschaheid)
Component:	Power-Other	Assignee:	Shaohua (shaohua.li)
Status:	REJECTED INVALID
Severity:	normal
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.20 2.6.21	Subsystem:
Regression:	---	Bisected commit-id:

Description sinndoc 2007-05-01 14:26:47 UTC

Most recent kernel where this bug did *NOT* occur: none
Distribution: Ubuntu, Gentoo
Hardware Environment: Laptop Lenovo Thinkpad X60T
Software Environment: 
Problem Description:

When the Laptop runs for many (6+) hours, a resume from suspend to ram is very
likely to result in a reboot or freeze.
If the Laptop runs for a shorter time, both suspend built into the kernel and
s2ram will very likely resume successfully.
I was looking for help on the linux thinkpad mailinglist, suspend-devel
mailinglist as well as the linux-pm mailinglist with no success.
The Debugging didn't seem to help, i got "hash matches device ..." messages at
boot but they all pointed to a terminal device and not dependent on whether the
last resume froze/rebooted or was successfull.
I dont know what else to do, i have this issue since many months.

I found another X60T Linux user with the same issue.

Steps to reproduce: Buy a Lenovo Thinkpad X60T for 2000 Dollars, run any Linux
Distribution for 6+ hours, suspend-to-ram and resume.

Comment 1 Luming Yu 2007-05-05 07:39:17 UTC

Please run this tool for 6 hrs on you X60T. http://www.linuxfirmwarekit.org/
Then try suspend and resume and report results.

It's too expensive to spend 2k for just debugging. hehe :-)

Comment 2 Fu Michael 2007-11-06 22:15:51 UTC

I think shaohua has a X60, right? Can you reproduce this? 

It looks like a dup of bug# 6166. The bad news is that if it's really a dup, it's not HW specific but related with cpufreq... it makes sense to keep this bug open and re-test if it's really gone in 2.6.21+...

Comment 3 Shaohua 2007-12-20 00:24:09 UTC

Not reproduceable here with a X60.
Can you attach the output of 'lspci -vvvxxxx' for cases of just after boot and just before the resume fail.
you can write a script to do the command and then suspend, and send me the last one with resume failure.

Comment 4 sinndoc 2007-12-20 09:13:42 UTC

The problem has vanished.
I dont know what fixed it, but iirc it just worked when i switched to gutsy.
I used suspend/resume dozens of time since then and they all worked fine (except for some video-driver issues but i heard its being worked on).

Comment 5 Shaohua 2007-12-20 17:15:24 UTC

The bug vanished strangly.