3 replies

Screen brightness stuck on 35% after switching to dGPU

Hi everyone, I hope you are all doing fine this evening. I'm struggling to fix a problem on my laptop whenever I switch to my dGPU via supergfx. The screen brightness won't change via KDE's brightness slider nor the FN keys. I've read that this is a known issue with laptops equipped with hybird graphics on github, I tried the commands on the github article but they never worked. Any help with resolving this issue is greatly appreciated. Thank you and have a good night.

Here is my fastfetch output incase anyone needs it.

Blu@NETGEAR

bazzite-asus-nvidia-open:stable 
Bazzite 41 (FROM Fedora Kinoite)
Linux 6.13.6-103.bazzite.fc41.x86_64
6 mins
Spawned on Mar 22 2025

ROG Zephyrus G16 GU603VI_GU603VI (1.0)
13th Gen Intel(R) Core(TM) i7-13620H (16) @ 4.90 GHz
NVIDIA GeForce RTX 4070 Max-Q / Mobile [Discrete]
Intel UHD Graphics @ 1.50 GHz [Integrated]
4.94 GiB / 15.23 GiB (32%)
24.82 GiB / 475.35 GiB (5%) - btrfs [Read-only]
1920x1200 @ 165 Hz in 16" [Built-in]
59% [Charging, AC Connected]
Mouse passthrough (absolute)

KDE Plasma 6.3.3
KWin (Wayland)
bash 5.2.32
Ptyxis 47.10
2766 (rpm), 46 (flatpak)

Blu@NETGEAR

bazzite-asus-nvidia-open:stable 
Bazzite 41 (FROM Fedora Kinoite)
Linux 6.13.6-103.bazzite.fc41.x86_64
6 mins
Spawned on Mar 22 2025

ROG Zephyrus G16 GU603VI_GU603VI (1.0)
13th Gen Intel(R) Core(TM) i7-13620H (16) @ 4.90 GHz
NVIDIA GeForce RTX 4070 Max-Q / Mobile [Discrete]
Intel UHD Graphics @ 1.50 GHz [Integrated]
4.94 GiB / 15.23 GiB (32%)
24.82 GiB / 475.35 GiB (5%) - btrfs [Read-only]
1920x1200 @ 165 Hz in 16" [Built-in]
59% [Charging, AC Connected]
Mouse passthrough (absolute)

KDE Plasma 6.3.3
KWin (Wayland)
bash 5.2.32
Ptyxis 47.10
2766 (rpm), 46 (flatpak)

Blu@NETGEAR

bazzite-asus-nvidia-open:stable 
Bazzite 41 (FROM Fedora Kinoite)
Linux 6.13.6-103.bazzite.fc41.x86_64
6 mins
Spawned on Mar 22 2025

ROG Zephyrus G16 GU603VI_GU603VI (1.0)
13th Gen Intel(R) Core(TM) i7-13620H (16) @ 4.90 GHz
NVIDIA GeForce RTX 4070 Max-Q / Mobile [Discrete]
Intel UHD Graphics @ 1.50 GHz [Integrated]
4.94 GiB / 15.23 GiB (32%)
24.82 GiB / 475.35 GiB (5%) - btrfs [Read-only]
1920x1200 @ 165 Hz in 16" [Built-in]
59% [Charging, AC Connected]
Mouse passthrough (absolute)

KDE Plasma 6.3.3
KWin (Wayland)
bash 5.2.32
Ptyxis 47.10
2766 (rpm), 46 (flatpak)

Blu@NETGEAR

bazzite-asus-nvidia-open:stable 
Bazzite 41 (FROM Fedora Kinoite)
Linux 6.13.6-103.bazzite.fc41.x86_64
6 mins
Spawned on Mar 22 2025

ROG Zephyrus G16 GU603VI_GU603VI (1.0)
13th Gen Intel(R) Core(TM) i7-13620H (16) @ 4.90 GHz
NVIDIA GeForce RTX 4070 Max-Q / Mobile [Discrete]
Intel UHD Graphics @ 1.50 GHz [Integrated]
4.94 GiB / 15.23 GiB (32%)
24.82 GiB / 475.35 GiB (5%) - btrfs [Read-only]
1920x1200 @ 165 Hz in 16" [Built-in]
59% [Charging, AC Connected]
Mouse passthrough (absolute)

KDE Plasma 6.3.3
KWin (Wayland)
bash 5.2.32
Ptyxis 47.10
2766 (rpm), 46 (flatpak)