[ltp] Workarounds and tips for thinkpads running 2.6.23/2.6.24

[Henrique de Moraes Holschuh]

On Thu, 07 Feb 2008, Yves-Alexis Perez wrote:
> btw, using xbacklight to control the brightness, I can notice that,
> using ???kernel??? interface in xrandr (the default one here), I can set
> brightness to some quite bright maximum, but can't shutdown the display.
> Using ???native??? interface, I can shutdown the panel but the maximum
> backlight is a lot less bright than in ???kernel???. I guess I should use

Report the backlight level thing to the X.org people, please.  As for
turning off the backlight, ACPI cannot do it on thinkpads.  Neither through
thinkpad-acpi, nor through ACPI video.  This is very, very unlikely to
change.

If you want to turn the backlight off, by all means use the X.org code and
not the kernel.

-- 
  "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