I am using Ubuntu 22.04 in conjunction with my Docking Station ICY BOX USB-C Docking Station (11-in-1) for 2 Monitors (2x DisplayPort), 4K 60Hz, 6-fach USB 3.0 HUB, Gigabit Ethernet, Audio, Schwarz, IB-DK2242AC, and the LG 35WN65C LCD-Monitor.
Currently, I have only one monitor connected to my docking station, and the docking station is connected to my laptop via USB-A. Everything works perfectly, except I can't enable the night light (blue light filter) on my external monitor. It does work with my laptop.
I have tried third-party apps like RedShift and Brightness Controller, but once again, the changes only affect my laptop and not my external monitor.
However, if I directly connect my monitor to my laptop, the night light feature works. Nevertheless, this means I need to have one monitor cable and one USB cable for the docking station. I want everything to go through the docking station.
If I log into Ubuntu with XORG and type 'xrandr,' I get the following output:
Screen 0: minimum 320 x 200, current 3440 x 1440, maximum 16384 x 16384
eDP connected (normal left inverted right x axis y axis)
1920x1080 60.00 +
1680x1050 60.00
1280x1024 60.00
1440x900 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
800x600 60.00
640x480 60.00
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-I-4-4 disconnected (normal left inverted right x axis y axis)
DVI-I-3-3 disconnected (normal left inverted right x axis y axis)
DVI-I-2-2 disconnected (normal left inverted right x axis y axis)
DVI-I-1-1 connected primary 3440x1440+0+0 (normal left inverted right x axis y axis) 820mm x 346mm
3440x1440 99.98*+ 84.96 59.97 49.99
1920x1080 60.00 60.00 59.94
1280x720 60.00 59.94
1024x768 60.00
800x600 60.32
720x480 60.00 59.94
640x480 60.00 59.94
I had the same problem with Windows 11. However, I managed to fix it by following this manual:
https://support.displaylink.com/knowledgebase/articles/1886413-how-to-enable-night-light-or-f-lux-on-displaylink
Unfortunately, DisplayLink does not have an official solution for Ubuntu, as mentioned by the support team when I emailed them.
Lastest Ubuntu and DisplayLink updates are installed.
Has anyone managed to get it working with Ubuntu?