Public bug reported: I have Dell G15 5515 Ryzen edition. It has Nvidia 3050 graphics.
In /sys/class/backlight directory, there are two directories amdgpu_bl0 and nvidia_wmi_ec_backlight. When I change the screen brightness via slider then it changes the brightness value of nvidia_wmi_ec_backlight but it doesn't work. When I manually changed the value of amdgpu_bl0 brightness file then my screen brightness changed. My BIOS is updated to the latest version and I have NVIDIA Driver with version 510.73.05. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1976473 Title: Unable to change screen brightness in ubuntu desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1976473/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs