Re: "ThinkPad" key on T20 only works after suspend cycle

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On Sun, 24 Jan 2010, Florian Zumbiehl wrote:
> > > Now, all the ACPI keys/Fn-combinations do work just fine, except for
> > > the "ThinkPad" key, which doesn't generate any events observable with
> > > acpi_listen after boot. Only after I have done one suspend cycle,
> > > the key starts working.
> > 
> > Well, send me the output of
> > 
> > grep . /sys/bus/platform/devices/thinkpad_acpi/hotkey*
> > 
> > (and don't worry if it causes the kernel to complain loudly about access to
> > deprecated attributes).
> 
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_all_mask:0x0088080c
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_bios_enabled:0
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_bios_mask:0x0000080c
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_enable:1
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_mask:0x0088080c
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_poll_freq:10
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_recommended_mask:0x0088080c
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_report_mode:1
> | /sys/bus/platform/devices/thinkpad_acpi/hotkey_source_mask:0x00880000
> 
> > What happens when you unload and re-load thinkpad-acpi (rmmod and modprobe)?
> > Does the key stop working?
> 
> I could have thought of that - yeah, breaks it again, suspending makes it
> work again.

Therefore, it is something I can fix.  Please open a bug on
bugzila.kernel.org so that I don't lose track of this.  Maybe I can even
reproduce it on my T43 if I force the above masks, which would speed up the
fix a great deal :-)

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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