Questions tagged [backlight]
Question about controlling the background illumination of liquid crystal displays (LCDs). For issues about backlit keyboards, use "keyboard-backlight" instead.
83 questions
0 votes
0 answers
61 views
A little white light shining through windows
It looks like a pinpoint of light shining through any opened window, always at the same place (it doesn't move if I move the window). It looks like a screen-related hardware problem, only I don't ...
- 123
0 votes
0 answers
146 views
How to modify the scale attribute of a backlight in sysfs?
How can a user change the scale attribute of a backlight that is exposed in sysfs? On my machine it's located at /sys/class/backlight/amdgpu_bl1/scale. I tried using udev to add write permissions to ...
- 11
0 votes
0 answers
472 views
Call XF86MonBrightnessUp and XF86MonBrightnessDown from terminal
I am running Qubes OS based on Fedora 36, and using i3wm. I am working on creating an i3 block similar to this contributed blocklet, but without using xbacklight. Why not xbacklight? My laptop has ...
- 101
1 vote
0 answers
67 views
Virtually reconnecting keyboard
My problem is as follows: I use a Steelseries Apex M800 keyboard, which means it has proprietary RGB software for the keyboard backlight (I chose my keyboard before I switched to Linux, so I am aware ...
- 11
2 votes
1 answer
3k views
Turn off monitor backlight (DPMS) from a VC/VT (TTY) without Xorg/Wayland-DE
How does one flip a monitor's backlight on/off from the normal Linux console (tty1)? I'm looking for a way to do this without dependencies on Xorg or specific Wayland-Compositors. Let's say, that I ...
- 601
0 votes
1 answer
2k views
Increase/Decrease Brightness F-keys on Keyboard not working in AlmaLinux?
After installing AlmaLinux on a Toshiba Portege laptop and choosing the workstation setup, the brightness control keys do not work. The hardware is capable and Linux compatible, as evidenced by the ...
- 269
0 votes
1 answer
252 views
Backlight adjustment buttons on Thinpad T495 don't work
I don't see any events when I run xev and press either the brightness up or down keys. I have configured i3wm to handle the XF86MonBrightnessDown and XF86MonBrightnessUp, but they won't get triggered ...
- 984
0 votes
1 answer
99 views
RGB-backlight keyboard interactive context-sensitive integration with Linux environment
I would like for example when editing in VI, that my RGB keyboard would highlight shortcut keys in different colors, or when I press CTRL in gnome then pgup, pgdown, up, down, would be highlighted in ...
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