Feature request: Adjust backlight based on external brightness (via optical sensor or webcam).

[Celti]

I think it should be possible to have blueshift read external brightness via a webcam or other optical sensor and adjust the brightness of the display, similar to the Android/iOS feature. There is already the program calise that does this, but I couldn't get it working satisfactorily on my system and feel the functionality would integrate well with blueshift.

[maandree]

I will see if I can write a module for using calise, but my netbook is dead so I currently do not have anything to test it on so it could take a while.

[maandree]

I currently have two problems.
(1) Calise fails with exit value 139 on step 6 of the configuration it runs the first time you start calise.
(2) When using vlc, mplayer or xawtv the image is yellow and white (and black is white), and a bit orange and pink, and tiny patches of cyan. (Using v4l2.) Basically I think that it does not convert from YUV t sRGB (or perhaps converts this that but should not.)

Any ideas?

[maandree]

I will be writing the web camera support myself, so disregard the last comment.
But does calise really support any other input device than the camera?