Screen backlight stuck at 100% after installation

asked 2018-06-03 11:17:52 -0500

hjek gravatar image

Installed Fedora and screen backlight is stuck at 100% only after installation. What is a bit odd is that I am able to change the brightness when booting from the Fedora USB live medium, but once Fedora is installed, it just won't. Also, after Fedora is installed /sys/class/backlight has become empty.

Could this have anything to do with SELinux or some security feature in Fedora? (Using Alpine Linux on the same laptop, I could not change brightness when using Linux with grsec, but worked fine with Linux-vanilla)

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