Suggestion for a new power management quirk: hibernate with shutdown instead of platform

Danny Kukawka danny.kukawka at
Wed Jan 2 05:01:46 PST 2008

On Sonntag, 30. Dezember 2007, Till Maas wrote:
> Hiyas,
> sometimes it is neccessary to run
> echo shutdown > /sys/power/disk; echo disk > /sys/power/state
> instead of
> echo platform > /sys/power/disk; echo disk > /sys/power/state
> to hibernate a notebook, e.g. for the on from the user that reported this
> bug report:
> I cannot see, that there is a quirk flag that shows whether or not this is
> needed, therefore it should be added, e.g.
> power_management.quirk.hibernate_shutdown

After some discussion with the SUSE kernel/ACPI/suspend guys I would vote 
against this new quirk.

Cases where you need shutdown instead of platform are normaly bugs in the 
kernel (e.g. the ACPI code) as far as we know and should get fixed there. 
This can change from kernel version to kernel version. The best is: report 
such problems there instead of workaround them in general via a quirk. 
Finding the source of the problem is always better than a workaround and 
would help more ppl.

And for the sound problem in the Ubuntu bug: sounds to me like a bug in the 
alsa driver and should also get reported and fixed there.


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