GNOME 3.32 Wayland: brightness slider 'wanders', visual stuttering

brokkr commented 5 years ago

OS: Fedora 30 (also noted on Ubuntu 19.04 Wayland login)

Summary: After setting a brightness level, the slider will gradualy shift up or down in a seemingly random pattern. Britghtness is affected same as if the adjustments were made by the user. Slider shifts tend to be accompanied by visual jank (mouse trails, differing brightness levels on different parts of the screen).

Steps to reproduce:

Install as per instructions in README.md in GNOME 3.32 on Fedora 30 or Ubuntu 19.04's gnome-desktop session on wayland
Adjust brightness in the gnome shell menu (top right).

brokkr commented 5 years ago

Hardware: 1st generation Lenovo X1 Yoga (2016)

brokkr commented 5 years ago

Turns out the 'wandering' was due to "Automatic brightness" in the power settings being on. I don't know if I had it off on previous 3.30 installs or if there is somthing has changed in 3.32. Either way, turning off "Automatic brightness" solved the issue for me.

fiji-flo / oled_dimmer

GNOME 3.32 Wayland: brightness slider 'wanders', visual stuttering #7