Re: Fwd: Re: /proc/acpi/ibm/volume broken on X20 since 2.6.22

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On Sun, 22 Jul 2007, Andreas Messer wrote:
> On Mon, Jul 09, 2007 at 10:35:23AM -0300, Henrique de Moraes Holschuh wrote:
> > > but i think so. Up to Kernel 2.6.21 thinkpad-acpi was working fine on my
> > > TP X20. Now, since 2.6.22 setting the volume seems to be broken:
> > > "echo -n mute >/proc/acpi/ibm/volume" leads to an I/O-Error. Doing
> >
> > Weird.  Please start thinkpad-acpi with the "debug=0xffff" parameter, and
> > send me the output you will get when you modprobe it with that parameter,
> > and also of what happens when you do the echo command...
> 
> Ok, logs are at the end. I don't think, it will help, not much
> useful debug output. Perhaps my Kernel-Logging is broken?

Nah, it is all normal.  I have *no idea* why it is not working.

> fan: hmm, need to reboot to reload module with parameters,
>      but reads a level 3 when fan on

Please test that one. If you get I/O errors on write, it is some issue with
the ACPI EC write access, which is used by brightness, fan and volume.

-- 
  "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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