[Qemu-devel] [Bug 1818398] [NEW] No evdev mouse passthrough with virtio-vga or kvm

[Qemu-devel] [Bug 1818398] [NEW] No evdev mouse passthrough with virtio-vga or kvm

[Yohann Agrebbe]

Public bug reported:

Hi,

Using qemu version 3.1.0-1 on a host with the latest Archlinux 64-bit
distribution, and running the same OS as guest, the mouse doesn't work
when using both evdev passthrough and virtio-vga, or when using both
evdev passthrough and kvm.

The following command line runs a machine that does not receive any mouse event:
qemu-system-x86_64 -machine type=q35,accel=kvm -cpu host -accel kvm -boot order=dc,menu=on -m size=2048 -net nic -device virtio-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

But with this command line, removing virtio-vga and kvm, the mouse works as expected:
qemu-system-x86_64 -machine type=q35 -boot order=dc,menu=on -m size=2048 -net nic -device cirrus-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

Note: Passing a keyboard by evdev in the same way always works, the
problem is mouse specific.

Thanks in advance for the analysis,
gatestallman

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: evdev kvm mouse virtio-vga

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https://bugs.launchpad.net/bugs/1818398

Title:
  No evdev mouse passthrough with virtio-vga or kvm

Status in QEMU:
  New

Bug description:
  Hi,

  Using qemu version 3.1.0-1 on a host with the latest Archlinux 64-bit
  distribution, and running the same OS as guest, the mouse doesn't work
  when using both evdev passthrough and virtio-vga, or when using both
  evdev passthrough and kvm.

  The following command line runs a machine that does not receive any mouse event:
  qemu-system-x86_64 -machine type=q35,accel=kvm -cpu host -accel kvm -boot order=dc,menu=on -m size=2048 -net nic -device virtio-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

  But with this command line, removing virtio-vga and kvm, the mouse works as expected:
  qemu-system-x86_64 -machine type=q35 -boot order=dc,menu=on -m size=2048 -net nic -device cirrus-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

  Note: Passing a keyboard by evdev in the same way always works, the
  problem is mouse specific.

  Thanks in advance for the analysis,
  gatestallman

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[Bug 1818398] Re: No evdev mouse passthrough with virtio-vga or kvm

[Thomas Huth]

This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:

 https://gitlab.com/qemu-project/qemu/-/issues/165


** Changed in: qemu
       Status: New => Expired

** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #165
   https://gitlab.com/qemu-project/qemu/-/issues/165

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1818398

Title:
  No evdev mouse passthrough with virtio-vga or kvm

Status in QEMU:
  Expired

Bug description:
  Hi,

  Using qemu version 3.1.0-1 on a host with the latest Archlinux 64-bit
  distribution, and running the same OS as guest, the mouse doesn't work
  when using both evdev passthrough and virtio-vga, or when using both
  evdev passthrough and kvm.

  The following command line runs a machine that does not receive any mouse event:
  qemu-system-x86_64 -machine type=q35,accel=kvm -cpu host -accel kvm -boot order=dc,menu=on -m size=2048 -net nic -device virtio-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

  But with this command line, removing virtio-vga and kvm, the mouse works as expected:
  qemu-system-x86_64 -machine type=q35 -boot order=dc,menu=on -m size=2048 -net nic -device cirrus-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7

  Note: Passing a keyboard by evdev in the same way always works, the
  problem is mouse specific.

  Thanks in advance for the analysis,
  gatestallman

To manage notifications about this bug go to:
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