I thought I’d record my experiences with this monitor, as I have recently purchased it and have had a few issues getting it to run.
QHD wouldn’t work out of the box. I had to set up my xorg.conf for 50Hz for that resolution to be detected. I’m not using Wayland so I can’t comment on its behavior or even how to configure it. Here is my config setting.
Section "Monitor" Identifier "HDMI1" # 2560x1440 49.96 Hz (CVT 3.69M9) hsync: 74.15 kHz; pclk: 256.25 MHz Modeline "2560x1440_50.00" 256.25 2560 2736 3008 3456 1440 1443 1448 1484 -hsync +vsync Option "PreferredMode" "2560x1440_50.00" EndSection
The USB-C cable provided by Dell would not work either for the display or hub. I have to use HDMI for the display and a USB-C to USB-A cable plugged into my SS port to get the monitor’s hub to work.
Hope this is useful for anyone trying to get this monitor or one of its relatives to work.