[ltp] acpi wakeup event

Thomas Breitner linux-thinkpad@linux-thinkpad.org
Fri, 20 Oct 2006 16:08:26 +0200


> > hi,
> >
> > does anybody get his tp to wakeup from suspend to ram only by fn+f4?
> >
> > my tp (t42p, bios 3.20, 2.6.18) *listens* to events from the
> > sleep-button, but also as well as from the lid.
> > when i try to toggle the wakeup-events through /proc/acpi/wakeup, i can
> > only enable/disable sleep-button and lid together:
> >
> > [...]
> > any hints about how to disable lid but enable slpb as wakeup-handler?
> >
> Bad news. dmesg output on my T22 when I tried similar:
> 
> ACPI: 'SLPB' and 'LID' have the same GPE, can't disable/enable one seperately
> 
> 
> -FeRD
> 
> P.S> Doesn't a single press of the "Fn" key cause the machine to wake 
> from S2R? It's been a while so I don't recall... thought it did. If so, 
> you don't need to enable EITHER LID or SLPB.


you're right, same here:

mala:~# dmesg  | grep GPE
ACPI: 'SLPB' and 'LID' have the same GPE, can't disable/enable one seperately
ACPI: 'UART' and 'LID' have the same GPE, can't disable/enable one seperately
ACPI: 'LID' and 'SLPB' have the same GPE, can't disable/enable one seperately
ACPI: 'UART' and 'SLPB' have the same GPE, can't disable/enable one seperately
mala:~#

but i can't remeber seeing those dmesg-entries earlier (befor 2.6.18?, befor 3.20?...)

i'll have to try your hint about only using fn for wakeup - indeed this
would satisfy my needs.

greetings, 
thomas