Arch Linux

spacemannn

Member

Registered: 2024-08-08

Posts: 9

[Solved] KDE 6.2.0/1 HDR, Adaptive Sync, and SDR Brightness missing

Looks like a rough release...

As the title says, HDR, Adaptive Sync, SDR Brightness are all missing now, with a single monitor plugged in that previously had no problems. Problem exists on another monitor as well. (And, as I type this, scaling appears to be acting wonky, because my text doesn't look properly anti-aliased)

This is on a wayland session. Nvidia 3090, latest open-official drivers.

Last edited by spacemannn (2024-10-18 12:37:58)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [Solved] KDE 6.2.0/1 HDR, Adaptive Sync, and SDR Brightness missing

They were disabled on nvidia by default because some buggy screens can lose the signal, you can reenable them with an environment variable: https://invent.kde.org/plasma/kwin/-/wi … colorspace

Punch that into e.g. ~/.config/plasma-workspace/env/enableHDR.sh

#!/bin/sh
export KWIN_DRM_ALLOW_NVIDIA_COLORSPACE=1

and make it executable.

spacemannn

Member

Registered: 2024-08-08

Posts: 9

Re: [Solved] KDE 6.2.0/1 HDR, Adaptive Sync, and SDR Brightness missing

tysm @V1del , everything is working perfectly now

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 23,875

Re: [Solved] KDE 6.2.0/1 HDR, Adaptive Sync, and SDR Brightness missing

Please mark as [SOLVED] by editing the title in the first post, might have to shorten it a little.