Bug 12798

Summary:	No wake up after suspend. - Toshiba L300
Product:	ACPI	Reporter:	Sebastian Zazula (zazulas)
Component:	Power-Sleep-Wake	Assignee:	Zhang Rui (rui.zhang)
Status:	CLOSED PATCH_ALREADY_AVAILABLE
Severity:	normal	CC:	acpi-bugzilla, rjw
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.27.4	Subsystem:
Regression:	Yes	Bisected commit-id:
Bug Depends on:
Bug Blocks:	7216, 11808
Attachments:	dmidecode patch: blacklist toshiba l300 that require to set SCI_EN directly on resume

Description Sebastian Zazula 2009-03-01 15:30:32 UTC

Latest working kernel version:2.6.27.3
Earliest failing kernel version:2.6.27.4
Distribution:Arch Linux
Hardware Environment:Toshiba L300
Software Environment:
Problem Description: Machine will not resume after suspending to ram. It wakes up but screen is blank and it halts (even capslock doesn't work). It depends on changes made from 2.6.27.3 to 2.6.27.4 in /drivers/acpi/sleep/main.c procedure:
+       /* If ACPI is not enabled by the BIOS, we need to enable it here. */
+       acpi_enable();
Steps to reproduce: Sleep and wake up.

Comment 1 Zhang Rui 2009-03-01 19:24:04 UTC

it seems that we need to blacklist this Toshiba machine as well.

Comment 2 Zhang Rui 2009-03-01 19:27:33 UTC

please attach the dmidecode output.

Rafael,
do you think this is a duplicate of bug #12038?

Comment 3 Sebastian Zazula 2009-03-01 22:47:00 UTC

Created attachment 20401 [details]
dmidecode

Comment 4 Zhang Rui 2009-03-01 23:11:41 UTC

Created attachment 20402 [details]
patch: blacklist toshiba l300 that require to set SCI_EN directly on resume

please get the latest kernel source code, and build a new kernel with this patch.

Comment 5 Sebastian Zazula 2009-03-02 03:54:16 UTC

thresume on patched kernel now works properly. thx.

Comment 6 Sebastian Zazula 2009-03-02 03:54:57 UTC

resume on patched kernel now works properly. thx.

Comment 7 Rafael J. Wysocki 2009-03-02 05:48:47 UTC

(In reply to comment #2)
> please attach the dmidecode output.
> 
> Rafael,
> do you think this is a duplicate of bug #12038?

It is, ie. the problem is the same.

Comment 8 Rafael J. Wysocki 2009-03-02 14:39:17 UTC

Handled-By : Zhang Rui <rui.zhang@intel.com>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=20402&action=view

Comment 9 Len Brown 2009-03-15 19:14:09 UTC

patch in comment #4 applied to acpi tree

Comment 10 Len Brown 2009-03-17 09:59:20 UTC

shipped upstream on top of 2.6.29-rc8-git2
closed