Re: ThinkPad X40 brightness

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On Tue, 04 Aug 2009, Robert de Rooy wrote:
> The latest kernel (2.6.31-rc5-git2) requests to send a report if 
> brightness works on a ThinkPad X40 with Intel 855GM, it reports it is 
> using brightness_mode=2
> 
> Not sure what needs to be tested, but the brightness keys work, but do 
> not cause any HAL events by default (so no OSD).

Well, does changes to /sys/class/backlight/thinkpad_screen/brightness
change the display brightness?

> I checked /sys/devices/virtual/backlight/* and I can change the 
> brightness by putting a different value into brightness.
> When pressing the brightness up/down buttons, the brightness file does 
> not change, but actual_brightness does.

Ah, ok. So it is working correctly.  Thanks.  I will update the driver,
and 2.6.32 won't ask for confirmation for the X40 anymore.

-- 
  "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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