Current version: 2.4
As described in https://gitlab.xfce.org/xfce/xfce4-power-manager/-/issues/158#note_94788 your software only controls the software gamma levels and not the hardware brightness, so it's no solution for me.
Hardware is controlled for the internal display via
# grep -r ^ /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/*brightness
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/actual_brightness:19200
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/brightness:19200
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/max_brightness:19200
or for the external HDMI display via I2C using ddcui (https://www.ddcutil.com/ddcui_main/) or gddccontrol/ddccontrol (https://github.com/ddccontrol/ddccontrol/), affecting directly the brightness in its internal setup menu.
None of the tools like Xfce Power Manager Plugin (only supporting the internal display) or the mentioned gddccontrol/ddccontrol (external displays via I2C only) is able to control all kind of displays in one application.
Could you add hardware brightness support?
Current version: 2.4
As described in https://gitlab.xfce.org/xfce/xfce4-power-manager/-/issues/158#note_94788 your software only controls the software gamma levels and not the hardware brightness, so it's no solution for me.
Hardware is controlled for the internal display via
or for the external HDMI display via I2C using ddcui (https://www.ddcutil.com/ddcui_main/) or gddccontrol/ddccontrol (https://github.com/ddccontrol/ddccontrol/), affecting directly the brightness in its internal setup menu.
None of the tools like Xfce Power Manager Plugin (only supporting the internal display) or the mentioned gddccontrol/ddccontrol (external displays via I2C only) is able to control all kind of displays in one application.
Could you add hardware brightness support?