I have been using f.lux for some time now and it is a really nice tool. It adjusts the color temperature of the screen at night to a more reddish tone which greatly reduces the strain on the eyes. It takes a while to get used to the red tint but now there is no going back.

When I learned that there is a version for linux (xflux) I had to get that for my Ubuntu laptop. I was quite disappointed, however, when I discovered that not only does it not feature a sleek GUI like the windows version, it also simply does not work at all on my laptop. f.lux throws this message at me: “Sorry, we only support 24/32-bit displays right now” which must be a bug because I am running in 24-bit mode with the open source radeon driver.

Redshift running in one-shot mode

Other features that are present in the windows version seem to be missing as well in xflux, like setting the daytime temperature. Ultimately I decided to code my own tool to adjust the color temperature. The result is an open source program called Redshift.

Please post comments here.