Bug 1456

Summary:	Poweroff fails on HP OmniBook 500 and other laptops in 2.4.22 and 2.4.23
Product:	ACPI	Reporter:	Adam Kessel (adam)
Component:	Power-Off	Assignee:	Len Brown (lenb)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	acpi-bugzilla
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.4.22, 2.4.23rc*	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	acpi_power_off() 2.4 patch from Ducrot Bruno

Description Adam Kessel 2003-10-29 21:26:22 UTC

Distribution: Debian Unstable
Hardware Environment: HP OmniBook 500
Software Environment: Shutting down
Problem Description:

I posted this recently to lkml, but got no response, so I thought I would
report it here as well.[1] I also posted to acpi-devel.[2]

In 2.4.22-rc2, ACPI poweroff worked fine on the HP OmniBook.

Since 2.4.22, all the way up to 2.4.23-pre8, the system fails to
shutdown--the process gets to "power off" and hangs there. It is
necessary to do a hard shut down to turn the system off.

There is no problem with rebooting.

Apparently this effects a number of HP laptops, although I have only
verified it on the OmniBook 500.[3]

This problem is not present in any of the 2.6.0 kernels, up to -test9.

I am using force=acpi as required since I have an older BIOS.  Apparently
the problem occurs in OmniBook laptops they have newer BIOSes as well.

I expect this is related to the Sony VAIO problem discussed this month on
the acpi-devel list as well.[4]

[1] http://www.ussg.iu.edu/hypermail/linux/kernel/0310.1/1625.html
[2] http://sourceforge.net/mailarchive/forum.php?thread_id=3368475&forum_id=6102
[3] http://zurich.ai.mit.edu/pipermail/omnibook/2003-September/002805.html
[4] http://article.gmane.org/gmane.linux.acpi.devel/4770

Steps to reproduce: Shut down system

Comment 1 Len Brown 2003-11-13 22:22:18 UTC

Created attachment 1441 [details]
acpi_power_off() 2.4 patch from Ducrot Bruno

Please test this 2.4.(22, 23) patch from Ducrot Bruno.

thanks,
-Len

Comment 2 Adam Kessel 2003-11-14 00:21:59 UTC

That patch fixes the problem on the HP OB500. I have word from another user that
the problem persists on the HP nx7000.

Comment 3 Len Brown 2003-11-17 19:12:58 UTC

Thanks for verifying that the patch fixes the powerdown issue on the HP Omnibook. 
Marking this entry RESOLVED .  For failures on other systems please open a new bug. 
It seems that we have multiple ways of making poweroff not work, and they're not 
duplicates of this one. 
 
thanks, 
-Len

Comment 4 Len Brown 2003-11-30 23:19:01 UTC

in 2.4.23