Arch Linux

lambdaditya

Member

Registered: 2024-12-25

Posts: 4

[solved]Screen Flickering and going to min brightness after suspend

I am using a laptop with AMD integrated graphics, and hyprland(with hyprlock and hypridle). Everytime I open my laptop after suspending(due to inactivity), my screen flickers for a short while and then goes to the minimum brightness. The weird thing is, if I just manually run hyprlock, there is no such problem. Also, when the screen goes dim, I still can launch apps and hyprland correctly tiles everything, So I don't think it is a problem with hyprlock.

Would appreciate if somebody could tell me about which diagnostic steps i should look into.

Last edited by lambdaditya (2024-12-25 15:12:24)

seth

Member

Registered: 2012-09-03

Posts: 63,431

Re: [solved]Screen Flickering and going to min brightness after suspend

https://bbs.archlinux.org/viewtopic.php?id=302066 looks related.

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juniper1312

Member

Registered: 2024-12-25

Posts: 1

Re: [solved]Screen Flickering and going to min brightness after suspend

I came across this issue today on my brand new Arch Linux install. I do also use Hyprland and Hyprlock, but it doesn't seem to be related. On tty2 the same issue occurs: when running `systemctl suspend`, after waking up the screen the brightness increases to max before the screen goes dark. A reboot is the only solution.

I fixed this by switching to the linux-lts kernel for now, while I await a fix to be merged into the latest kernel, which I expect to take a few weeks given others have already reported this issue.

snakeroot

Member

Registered: 2012-10-06

Posts: 171

Re: [solved]Screen Flickering and going to min brightness after suspend

Kernel 6.12.7 seems to fix the issue for me.

djkabutar

Member

Registered: 2024-12-28

Posts: 1

Re: [solved]Screen Flickering and going to min brightness after suspend

@snakeroot is right, it works in 6.12.7 but the problem is still there in xanmod kernels. I will look into that more!