Reducing screen brightness for nighttime use

[Thomas_Weissschuh]

This has been reported before at

[RESOLVED] Even lower screen brightness?

I use my laptop as a TV at night when I go to sleep, but the lowest brightness is still too bright for my wife who is trying to sleep. Is there a way to get even lower brightness than the lowest option currently available? I am on Fedora 37, but I can entertain switching to something else if it makes it easier.

and

[RESPONDED] AMD Framework minimum brightness too high (now with measurements)

There have been several threads about people saying the AMD Framework 13 minimum brightness is too high, but until now no one has said what “too high” means. I finally found a source that did an empirical measurement of the minimum brightness possible on the AMD Framework 13. According to RTINGS, the measured minimum brightness for the AMD Framework 13 is 21 nits, over double the brightness of the 9 nits for the Intel Framework 13. For reference to the gold standard, RTINGS measures the MacBoo…