Do you have a better solution? If I change the HDMI display to -2560x-360 it doesn't work either. Now there is space to the bottom and right of the laptop display (captured in screenshot) and the external monitor is not actually at that position either, it's more like -2560x-180 (not sure if negative values are even supported.) I've attached a screenshot with no external display connected.
Like I said, this is a new problem. ** Attachment added: "Screenshot from 2019-03-07 07-56-35.png" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1818829/+attachment/5244436/+files/Screenshot%20from%202019-03-07%2007-56-35.png -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1818829 Title: Disconnected monitors act as present Status in xorg-server package in Ubuntu: Opinion Bug description: I add a custom mode for my monitor using xrandr at boot. It looks like this: xrandr --newmode "2560x1440R" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync xrandr --addmode HDMI-1 "2560x1440R" xrandr --output HDMI-1 --mode "2560x1440R" xrandr --output HDMI-1 --pos 0x0 xrandr --output eDP-1 --pos 2560x360 Starting recently, since I installed Ubuntu 18.04.2 (was using .1 before), even though the monitor isn't connected, that "space" is still there. I can move my mouse out of my laptop screen and it goes over where the monitor would be and gets lost. And screenshots (Print Screen) captures a large blank space as if the monitor were connected. As I said, this just started happening recently but I don't remember exactly what update caused it. All I know is before I installed 18.04.2, this didn't happen. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1818829/+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