View source for Disable the ambient light sensor

The [[Nokia N900|N900]] contains a [http://www.taosinc.com/productfamily.aspx?sel=als Taos TSL2563]<ref>http://natisbad.org/N900/n900-commented-hardware-specs.html</ref> Ambient Light Sensor (ALS). This light sensor is used to auto-adjust the screen brightness relative to your preferred brightness setting. Some users may find this auto-adjusting to be annoying, when the screen dims every time you hold your finger over the screen, or trying to use the phone outdoors.

==Prerequisites==
You will need to install the [[Root access#rootsh|rootsh]] package.

==Disabling the ALS==
[http://talk.maemo.org TMO] user dr_frost_dk discovered<ref>http://talk.maemo.org/showpost.php?p=947958&postcount=97</ref> a simple way to disable the ALS:
 sudo gainroot
 sed -ie 's/brightness-als/brightness-simple/' /etc/mce/mce.ini
 killall mce
No reboot is required for the new setting to take effect.

Please note that the actual ALS device is not disabled; it still functions and can be used by other applications. This setting only disables its influence on the screen's backlight.

==Re-enabling the ALS==
If you want to change back to the original setting:
 sudo gainroot
 sed -ie 's/brightness-simple/brightness-als/' /etc/mce/mce.ini
 killall mce
No reboot is required for the new setting to take effect.

The backlight will once again be influenced by the ALS.

==References==
<references />

[[Category:Power users]]
[[Category:N900]]