Public bug reported: Gnome hotkeys for controlling screen backlight gives only 20 levels. Since modern notebooks have really powerful backlight only 2-3 lower steps are usable in the dark environment.
Maximum count of brightness levels is hardcoded to 20 in macro "BRIGHTNESS_STEP_AMOUNT": https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/blob/master/plugins/power/gpm-common.h#L41 https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/blob/master/plugins/power/gsd-backlight.c#L899 For example, my thinkpad has 496 brightness levels: cat /sys/class/backlight/intel_backlight/max_brightness 496 Hotkeys allows to set brightness 4, 28, 52, and the next step is 76 which is already too bright. ** Affects: gnome-power-manager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/1998704 Title: Too few screen brightness levels Status in gnome-power-manager package in Ubuntu: New Bug description: Gnome hotkeys for controlling screen backlight gives only 20 levels. Since modern notebooks have really powerful backlight only 2-3 lower steps are usable in the dark environment. Maximum count of brightness levels is hardcoded to 20 in macro "BRIGHTNESS_STEP_AMOUNT": https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/blob/master/plugins/power/gpm-common.h#L41 https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/blob/master/plugins/power/gsd-backlight.c#L899 For example, my thinkpad has 496 brightness levels: cat /sys/class/backlight/intel_backlight/max_brightness 496 Hotkeys allows to set brightness 4, 28, 52, and the next step is 76 which is already too bright. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/1998704/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
