Cannot Move Maximized Window From Landscape to Portrait Monitor

[7enderhead]

Before filing a bug report...

• I have checked the FAQ
• I have searched for existing open bugs
• I have confirmed the bug exists on the github main latest from 2026-05-27

Describe the bug
Two monitors, "A" in landscape as main, "B" in portrait to the left.

Reproduction Instructions...

1. fullscreen window on A
2. try to move to B with command "monitor-switch"
3. this does not work, windows stays on A (maximized)
4. first un-maximizing window and then moving from A to B works (although then not maximized on B, of course)
5. moving maximized window from B to A works, window will be maximized on A
6. switching B to portrait mode: moving maximized windows from A to B and back works
7. affects all kinds of windows (browser, terminal, VS Code)

Debug Output:

DEBUG: Received keybind: <Primary>1
DEBUG: Executing command 'monitor-switch' with arguments (), {}
DEBUG: Gathering usable areas manually...
DEBUG: Loaded monitor geometry: [Rectangle(x=1200, y=0, width=2560, height=1440), Rectangle(x=0, y=20, width=1200, height=1920)]
DEBUG: Gathered _NET_WM_STRUT_PARTIAL value: [StrutPartial(left=1222, right=0, top=0, bottom=0, left_start_y=0, left_end_y=1439, right_start_y=0, right_end_y=0, top_start_x=0, top_end_x=0, bottom_start_x=0, bottom_end_x=0)]
DEBUG: Usable desktop region calculated as: Region(<Monitors=[Rectangle(x=1200, y=0, width=2560, height=1440), Rectangle(x=0, y=20, width=1200, height=1920)], Struts=[StrutPartial(left=1222, right=0, top=0, bottom=0, left_start_y=0, left_end_y=1439, right_start_y=0, right_end_y=0, top_start_x=0, top_end_x=0, bottom_start_x=0, bottom_end_x=0)]>)
DEBUG: Operating on window <Wnck.Window object at 0x731cba457c80 (WnckWindow at 0x312b9650)> with title "Start Page - Vivaldi" and geometry Rectangle(x=1222, y=0, width=2538, height=1440)
DEBUG:  Window is on monitor 0, which has geometry Rectangle(x=1200, y=0, width=2560, height=1440)
DEBUG:  Window is on monitor 0, which has geometry Rectangle(x=1200, y=0, width=2560, height=1440)
DEBUG: Moving window to monitor 1, which has geometry Rectangle(x=0, y=20, width=1200, height=1920)
DEBUG:  Window is on monitor 0, which has geometry Rectangle(x=1200, y=0, width=2560, height=1440)
DEBUG:  Repositioning to Rectangle(x=1222, y=20, width=1338, height=1420))

[ssokolow]

I'm about to go AFK right now, so I can't investigate the log in detail, but my first suspicion is that it might be another expression of a known bug which sometimes (not quite sure what the deciding factor is yet) causes monitor-switch to do nothing if the window is in a position on the current monitor which would be off the right edge of the destination monitor.

(I've always seen it happen when trying to go from the right edge of my 1920x1080 monitor to one of my 1280x1024 monitors)