https://bugs.kde.org/show_bug.cgi?id=521486

            Bug ID: 521486
           Summary: Libeis: ????  Bug: eis_device_stop_emulating: missing
                    call to eis_device_frame()
    Classification: Plasma
           Product: kwin
      Version First 6.6.5
       Reported In:
          Platform: NixOS
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: wayland-generic
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

DESCRIPTION

I'm using deskflow with a plasma 6.6.5 client and server.  When I move the
mouse from the client back to the server, the mouse cursor remains on the
screen on the client (it should disappear) and the error message:

Libeis: 🪲  Bug: eis_device_stop_emulating: missing call to eis_device_frame()

Appears in journalctl --user -u plasma-kwin_wayland -f

I found https://github.com/deskflow/deskflow/issues/9423 which claims this is a
kwin bug.

STEPS TO REPRODUCE
1. With two plasma machines, setup deskflow
2. Move the mouse between client and server

OBSERVED RESULT

The mouse pointer remains visible on the client.  It's not just a visual
artifact, the pointer is still there, as I can see with a mouseover video
preview playing in my browser.  The error message also appears in the journal.

EXPECTED RESULT

The mouse pointer disappears from the client and there are no error messages in
the journal.

SOFTWARE/OS VERSIONS

The hardware I have is different between client and server, but the KDE
versions are identical, due to both running nixos with the same flake.  The
linked deskflow github issue shows this is not a nixos specific issue.

Operating System: NixOS 26.05
KDE Plasma Version: 6.6.5
KDE Frameworks Version: 6.26.0
Qt Version: 6.11.0
Kernel Version: 6.18.35 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 9900X 12-Core Processor
Memory: 64 GiB of RAM (60.4 GiB usable)
Graphics Processor 1: AMD Radeon RX 7900 GRE
Graphics Processor 2: AMD Ryzen 9 9900X 12-Core Processor


ADDITIONAL INFORMATION

This is not an issue when the client is running x11, but the server is running
wayland.

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