Distribution: Debian Unstable
Hardware Environment: HP OmniBook 500
Software Environment: Shutting down
I posted this recently to lkml, but got no response, so I thought I would
report it here as well. I also posted to acpi-devel.
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.
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.
Steps to reproduce: Shut down system
Created attachment 1441 [details]
acpi_power_off() 2.4 patch from Ducrot Bruno
Please test this 2.4.(22, 23) patch from Ducrot Bruno.
That patch fixes the problem on the HP OB500. I have word from another user that
the problem persists on the HP nx7000.
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.