[Qemu-devel] [Bug 1654826] [NEW] Holding key down using input-linux freezes guest

[Qemu-devel] [Bug 1654826] [NEW] Holding key down using input-linux freezes guest

[mutedbytes]

Public bug reported:

Qemu release version 2.8.0
KVM, kernel 4.9.1

When using the -object input-linux capability in qemu for passthrough of
input/evdev devices, I found that when a key is held for a few seconds
or more (such as ctrl key), the guest system freezes until the key is
released. In some cases, mouse control is also lost following one of
these "freezes". I also noticed that one of the four cpu cores I have
the guest pinned to ramps to 100% during these freezes.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  New

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

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[Qemu-devel] [Bug 1654826] Re: Holding key down using input-linux freezes guest

[mutedbytes]

Thought I might add:

The qemu command line option equivalents for mouse and keyboard:

-object input-linux,id=kbd,evdev=/dev/input/by-path/platform-i8042-serio-0-event-kbd,repeat=on,grab_all=on \
-object input-linux,id=ms1,evdev=/dev/input/by-id/usb-ROCCAT_ROCCAT_Kone_Pure-event-mouse

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  New

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1654826/+subscriptions

[Qemu-devel] [Bug 1654826] Re: Holding key down using input-linux freezes guest

[Gerd Hoffmann]

quick workaround: drop "repeat=on".
some guests seem to have problems with that, not debugged yet why.

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  New

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1654826/+subscriptions

[Qemu-devel] [Bug 1654826] Re: Holding key down using input-linux freezes guest

[mutedbytes]

I have tried without "repeat=on" option, and with 2.8.0 I still seem to
be getting weird behavior with mouse dropping out at points, and with
keys seemingly being continued to be pressed (ie still running around in
an fps game after releasing the key). I also experienced at one point
l-ctrl+r-ctrl not passing keyboard control to guest, and needed to VNC
in to shutdown/restart guest (this was after plugging in a usb xbox360
controller, not sure if related).

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https://bugs.launchpad.net/bugs/1654826

Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  New

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1654826/+subscriptions

[Qemu-devel] [Bug 1654826] Re: Holding key down using input-linux freezes guest

[D J]

I am getting the same issue where I can even hear the sound glitch out.
I'm on Arch Linux.

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  New

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
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[Bug 1654826] Re: Holding key down using input-linux freezes guest

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting all older bugs to
"Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Thank you and sorry for the inconvenience.


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

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  Incomplete

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1654826/+subscriptions

[Bug 1654826] Re: Holding key down using input-linux freezes guest

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

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

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Title:
  Holding key down using input-linux freezes guest

Status in QEMU:
  Expired

Bug description:
  Qemu release version 2.8.0
  KVM, kernel 4.9.1

  When using the -object input-linux capability in qemu for passthrough
  of input/evdev devices, I found that when a key is held for a few
  seconds or more (such as ctrl key), the guest system freezes until the
  key is released. In some cases, mouse control is also lost following
  one of these "freezes". I also noticed that one of the four cpu cores
  I have the guest pinned to ramps to 100% during these freezes.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1654826/+subscriptions