[ltp] acpi volume has no effect on x61s

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Wed, 29 Jul 2009 20:00:37 -0300

On Wed, 29 Jul 2009, Amit Ramon wrote:
> version). I'm trying to control the sound volume by echoing different
> commands into /proc/acpi/ibm/volume, but this doesn't have any effect

You only have MUTE control.  Nothing else.  Lenovo neutered the built-in
mixer, so it is simply not there.  And I don't recall right now if MUTE
control over the EC works on recent Lenovo laptops.

  "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