Disable the ambient light sensor
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| - | + | 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. | |
| - | The [[Nokia N900|N900]] contains a [http:// | + | |
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==Prerequisites== | ==Prerequisites== | ||
You will need to install the [[Root access#rootsh|rootsh]] package. | You will need to install the [[Root access#rootsh|rootsh]] package. | ||
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==Disabling the ALS== | ==Disabling the ALS== | ||
| - | [http:// | + | [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 | sudo gainroot | ||
sed -ie 's/brightness-als/brightness-simple/' /etc/mce/mce.ini | 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== | ==Re-enabling the ALS== | ||
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sudo gainroot | sudo gainroot | ||
sed -ie 's/brightness-simple/brightness-als/' /etc/mce/mce.ini | 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== | ||
Revision as of 16:22, 24 November 2011
The N900 contains a Taos TSL2563[1] 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.
Contents |
Prerequisites
You will need to install the rootsh package.
Disabling the ALS
TMO user dr_frost_dk discovered[2] 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.