Disable the ambient light sensor
(New page: ==Introduction== The N900 contains a [http://www.taosinc.com/productfamily.aspx?sel=als Taos TSL2563]<ref>http://natisbad.org/N900/n900-commented-hardware-specs.html</ref> A...) |
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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://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. | ||
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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== | ||
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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 backlight. | 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 backlight. | ||
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==Re-enabling the ALS== | ==Re-enabling the ALS== | ||
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sed -ie 's/brightness-simple/brightness-als/' /etc/mce/mce.ini | sed -ie 's/brightness-simple/brightness-als/' /etc/mce/mce.ini | ||
Then reboot and the backlight will once again be influenced by the ALS. | Then reboot and the backlight will once again be influenced by the ALS. | ||
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==References== | ==References== | ||
Revision as of 09:01, 17 February 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
Then reboot and the new setting should 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 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
Then reboot and the backlight will once again be influenced by the ALS.