[BUG] Host Key / Start Menu focus triggers mouse coordinate offset and xrandr resolution collapse on Dual 4K displays (XFCE4 Guest)

[zepvalue]

Version

trunk/main

Host OS Type

Windows

Host OS name + version

Windows 11 Home Build 26200

Host Architecture

ARM

Guest OS Type

Linux

Guest Architecture

ARM

Guest OS name + version

Kali Linux 7.0.12

Component

Other

What happened?

In a dual 4K monitor guest setup, pressing the Host Key (bound to the Windows/Super key) or triggering the XFCE Start Menu causes the guest monitor layout to shift and degrades mouse cursor positioning. Interacting with menu elements or launching xfce4-display-settings causes xrandr to drop the resolution completely or disable the secondary monitor entirely.

Tried with 3D Acceleration Off and ON

How can we reproduce this?

1. Configure a Linux guest with XFCE4 using 2 virtual displays in VirtualBox manager.
2. In the guest OS, set both monitors to 4K resolution ($3840 \times 2160$) via xrandr
3. Press the Host / Windows key.
4. Observe: The mouse cursor offset immediately becomes misaligned with its interactive screen hitboxes.
5. Open xfce4-display-settings from a terminal or menu within the guest.
6. Observe: Screen 2 turns off/black, or the resolution drops to a lower fallback mode.

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.