I have the same problem (two 1080p displays and one 3k display). Would that workaround work with wayland?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/2008355 Title: Unable to set fractional scaling on three monitor setup Status in gnome-control-center package in Ubuntu: New Bug description: I have three monitors: one 4K (3840x2160) display and two 2560x1440. I've tried setting fractional scaling to 150% on the 4K display in gnome control center (ubuntu 22.10), but it does not work. It works fine when I disconnect some displays, leaving only the 4K or 4k and one 2560. However, when all three are connected the apply button is disabled and the following message appears: "Changes Cannot be Applied. This could be due to hardware limitations." When gnome-control-center is started from terminal it shows the following warning: ``` (gnome-control-center:12235): display-cc-panel-WARNING **: 18:42:27.389: Config not applicable: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Logical monitors not adjacent ``` thought it doesn't seem to be the case. After some digging I've found a workaround, executing the following commands seems to do what the control panel does: ``` xrdb -m <<EOF Xft.dpi: 192 EOF xrandr --fb 15360x2880 --dpi 192 --output DP-4 --mode 3840x2160 --panning 5120x2880+0+0 --scale-from 5120x2880 \ --output DP-2 --mode 2560x1440 --panning 5120x2880+5120+0 --scale-from 5120x2880 --primary \ --output DP-0 --mode 2560x1440 --panning 5120x2880+10240+0 --scale-from 5120x2880 ``` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/2008355/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
