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Hello,
I recently bought a Lenovo Thinkpad T410 and installed ArchLinux 64 bits on it.
Everything works fine except setting brightness..
I am not enable to change brightness level with the Fn hot keys when I am on X. (changing brightness works during boot)
Is there someone who has the same machine and who could give me some tricks?
Thanks.
Last edited by rato67 (2010-03-16 18:14:12)
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I had at look at http://www.thinkwiki.org/wiki/LCD_Brightness but none of the commands given is working on my laptop.
Last edited by rato67 (2010-03-13 17:14:50)
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Use the command "xbacklight". Read "man xbacklight". For example "xbacklight -set 10" reduces backlight to 10%. Then you can bind that command to a function key. For binding methods read: http://wiki.archlinux.org/index.php/Extra_Keyboard_Keys and the documentation for your window manager on how to bind multimedia keys to commands.
Philosophy is looking for a black cat in a dark room. Metaphysics is looking for a black cat in a dark room that isn't there. Religion is looking for a black cat in a dark room that isn't there and shouting "I found it!". Science is looking for a black cat in a dark room with a flashlight.
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This command does not work:
$ xbacklight -set 10
No outputs have backlight property
Also there are no files about brightness in /proc directory on my installation...
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Does this thread help? : http://bbs.archlinux.org/viewtopic.php?id=51283
Philosophy is looking for a black cat in a dark room. Metaphysics is looking for a black cat in a dark room that isn't there. Religion is looking for a black cat in a dark room that isn't there and shouting "I found it!". Science is looking for a black cat in a dark room with a flashlight.
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I got the solution from there: http://www.thinkwiki.org/wiki/Category:T510
Workarounds:
* To change the brightness, one can switch to a virtual terminal and change it there, and the new brightness will remain when resuming X usage. The following line can be added to the "Devices" section of xorg.conf to enable brightness control while using the nVidia binary driver: Option "RegistryDwords" "EnableBrightnessControl=1" This results in a high-pitched noise emanating from the display, which does not occur when the brightness is changed via the virtual terminal.
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Thanks, I got the same problems.
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