http://bugzilla.kernel.org/show_bug.cgi?id=6091
Summary: suspend to RAM regression on IBM ThinkPad T23: resume
hangs hard
Kernel Version: 2.6.15.4
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: no newer kernel tested
Distribution: Debian Linux
Hardware Environment: IBM ThinkPad T23, Pentium 3, 1.13 GHz, 384 MB RAM
Software Environment: Kernel 2.6.15.4 with sws2 patches
Problem Description:
Suspend to RAM hangs hard on resume. Once I got a text display back (without
any error message), but the other tries I simply got a black screen with three
white pixels somewhere near the center of the display. The machine seems to be
locked up completely.
Steps to reproduce:
1) build a 2.6.15.4 kernel with sws2-2.2 patches
Suspend to RAM worked okay with 2.6.14.4 + sws2.2-rc14 at least (which was my
first sws2 kernel). So its probably not needed to use the sws2 patches.
If need be I look into compiling a kernel without sws2 to know for sure, but it
make take quite a long time till I come to it.
2) echo mem > /sys/power/state
Also tried with my own suspend script which disables ALSA, USB ehci driver and
some other stuff as well with "hibernate
--config-file /etc/hibernate/ram.conf" (from Debian's hibernate package,
slightly adapted to my needs)
This problem hasn't high priority for me since I don't use suspend to RAM
anyway (except for testing whether bug #5600 has gone;-). Just wanted to report
it. I will ask the guys on the linux-thinkpad mailing list whether they can
reproduce this and point them to the bug number.
Regards,
Martin Steigerwald
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