Screen brightness control very slow since update

General support questions
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bonedome
Posts: 153
Joined: 2017/04/22 08:11:04

Screen brightness control very slow since update

Post by bonedome » 2020/05/19 16:59:15

Hello
as the title says, when I press Fn + up to increase screen brightness it takes about 50 seconds to take effect, and no matter how many times it is pressed it only goes up one increment at a time.
I checked with xev and the button press takes 20 seconds to be registered and another 30 to take effect.
I have a dell e6420 latitude laptop and it was working fine till the last update, which I noticed included grub2, xorg and kernel, I have tried previous kernel with no improvement.
I can find very little on the web that might point me in the right direction and this can be frustating at this time of year with the sun in and out like a fiddlers elbow and my dwindling eyesight.
I'm going to do some more research but if anyone can point me in the right direction (I suspect xorg) I'd apreciate it.

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