[Bug 1749223] Re: mouse offset or invisible wall 2.11.0-3

[roland]

It sounds like I have the same problem.

There is a virtual wall where the mouse cursor goes from the guest window to 
the host desktop.
This virtual wall/cut off point is consistent.
Moving the mouse faster seems to break through this wall and puts the wall at a 
different place.

For me this happens on a host with ubuntu 19.10 with wayland.
I don't have the issue on ubuntu 19.10 with X.

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https://bugs.launchpad.net/bugs/1749223

Title:
  mouse offset or invisible wall 2.11.0-3

Status in QEMU:
  New

Bug description:
  (There was another post, I'm not sure if it is related though. Also
  not sure if it's Arch related, I wouldn't be surprised as I normally
  use Gentoo and have less problems with Gentoo.)

  
  qemu-system-x86_64 -enable-kvm -M q35 -cpu host -m 8192 -vga vmware -smp 
4,sockets=1,cores=4,threads=1 -drive file=/path/to/my.img,if=virtio -soundhw 
ac97 -usb -monitor unix:/tmp/qemu-mon,server,nowait -usb --usbdevice 
host:0000:ffff -device vfio-pci,host=00:00.0 -alt-grab &


  When I grab the mouse in/out of the VM I tend to get an "invisible wall" half 
of the time.
  I can push past if I fling the mouse through it but not if I slowly keep 
moving down.

  The direction always seems to be down when I hit a wall (so a Y offset? 
maybe?)
  This has been happening since at least version 2.10.

  Not sure if "-alt-grab" has anything to do with it, that'd be my first
  guess.

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