I have two monitors, and the primary one is to the right. When there are no windows opened or all the windows are minimized, opening applications with a keyboard shortcut makes the application open on the secondary monitor, even though the mouse is on the primary. If you move the mouse or click on the empty desktop before opening the application, it will spawn in the correct monitor (primary) once, but if you close it and open it again, it will open on the wrong monitor. Examples: showing/hiding yakuake, opening/closing dolphin. STEPS TO REPRODUCE 1. Have no windows opened, or all windows minimized for that virtual desktop. Mouse on the primary monitor 2. Do not move the mouse 3. Open an application via a keyboard shortcut 4. Close application with the keyboard. Try opening it again via shortcut OBSERVED RESULT Application will open on secondary monitor EXPECTED RESULT Application should have opened on primary monitor, where the mouse cursor was. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Gentoo Linux, kernel 6.9.4, Plasma 6.2 dev (available in About System) KDE Plasma Version: 6.1.80 KDE Frameworks Version: 6.4.0 Qt Version: 6.7.2 Running on wayland ADDITIONAL INFORMATION I think this started happening somewhere between plasma 6.0 and 6.1. This happens with a fresh user account as well. Secondary monitor is DP-1 and primary monitor is DP-2. Maybe it has something to do with that. Here is the result of running kscreen-doctor --outputs: Output: 1 DP-1 enabled connected priority 2 DisplayPort Modes: 0:2560x1440@60! 1:2560x1440@165* 2:2560x1440@144 3:2560x1440@120 4:2560x1440@100 5:2560x1440@85 6:2560x1440@24 7:1024x768@60 8:800x600@60 9:640x480@60 Geometry: 0,205 2048x1152 Scale: 1.25 Rotation: 1 Overscan: 0 Vrr: Automatic RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Output: 2 DP-2 enabled connected priority 1 DisplayPort Modes: 0:2560x1440@60! 1:2560x1440@165* 2:2560x1440@144 3:2560x1440@120 4:2048x1152@60 5:1920x1200@60 6:1920x1080@120 7:1920x1080@60 8:1920x1080@60 9:1920x1080@50 10:1920x1080@24 11:1600x1200@60 12:1680x1050@60 13:1280x1024@75 14:1280x1024@60 15:1280x800@60 16:1152x864@75 17:1280x720@60 18:1280x720@50 19:1024x768@75 20:1024x768@60 21:800x600@75 22:800x600@60 23:720x576@50 24:720x480@60 25:640x480@75 26:640x480@60 27:640x480@60 Geometry: 2048,0 2048x1152 Scale: 1.25 Rotation: 1 Overscan: 0 Vrr: Automatic RgbRange: unknown HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB
Monitor primary-ness doesn't determine where windows open. Rather, this is generally determined by which monitor the cursor is on.
but the cursor is on the primary monitor, and yet all windows open on the secondary monitor unless I move the mouse right before opening them
I was trying to record my screen and I believe I found the culprit! It seems that xwaylandvideobridge auto-loads if it is installed, but if I close it, the behavior disappears!