Thanks,
Looking at your xrandr.txt there is the modeline :
1920x1080 (0xc6) 74.176MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew0 clock 26.97KHz
v: height 1080 start 1084 end 1089 total 1125 clock 23.98Hz
That means the refresh rate accepte
Can you attach the file ~/.config/monitors.xml right after changing the
resolution to 2560x1440 ?
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https://bugs.launchpad.net/bugs/1892296
Title:
gnome-control-center cannot change reso
Also observed on Ubuntu 18.04.3, with kernel 5.0.0-37-generic
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https://bugs.launchpad.net/bugs/1827328
Title:
ModemManager does not honor blacklisted ttys (ID_MM_DEVICE_IGNORE)
To mana