[Qemu-devel] [Bug 1828272] [NEW] 4.0 breaks keyboard autorepeat in guests with xserver

* [Qemu-devel] [Bug 1828272] [NEW] 4.0 breaks keyboard autorepeat in guests with xserver
@ 2019-05-08 17:47 Frederick Metzengerstein
  2019-05-08 17:54 ` [Qemu-devel] [Bug 1828272] " Frederick Metzengerstein
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Frederick Metzengerstein @ 2019-05-08 17:47 UTC (permalink / raw)
  To: qemu-devel

Public bug reported:

Description:
In a linux/bsd guest within X, pressing and holding a key for a short time causes an endless repeat of that key in the guest. The release of the key gets ignored.
Example 1: pressing and holding 'a' for a few seconds results in typing of 'aaaaaaaaaaaa...' endlessly.
Example 2: pressing and holding 'Backspace' for a few seconds results in deleting all your previously typed text.

It doesn't happen within a VT in the guest. It also doesn't happen with
guests that run windows, reactos or haiku for example.

The problem goes away, when disabling xorgs autorepeat function via "xset -r" in the host.
Normally, this setting should not have any effect on the guest, since it has it's own autorepeat setting. So there is some conflict here.

Steps to reproduce:
Start any linux/bsd guest system with xserver, open a terminal, press and hold a key for a short time: Look how it gets typed endlessly (Try a few times if it doesn't happen immediately).
The easiest way is to run a linux live cd, like this (Link to example iso :http://download.grml.org/grml64-full_2018.12.iso)
$ qemu-system-x86_64 -enable-kvm -m 512 -net none -boot d -cdrom grml64-full_2018.12.iso

Qemu version info:
QEMU emulator version 4.0.0
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers

System info:
Linux **** 5.0.13-arch1-1-ARCH #1 SMP PREEMPT Sun May 5 18:05:41 UTC 2019 x86_64 GNU/Linux

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  Description:
  In a linux/bsd guest within X, pressing and holding a key for a short time causes an endless repeat of that key in the guest. The release of the key gets ignored.
  Example 1: pressing and holding 'a' for a few seconds results in typing of 'aaaaaaaaaaaa...' endlessly.
  Example 2: pressing and holding 'Backspace' for a few seconds results in deleting all your previously typed text.

  It doesn't happen within a VT in the guest. It also doesn't happen with
  guests that run windows, reactos or haiku for example.

  The problem goes away, when disabling xorgs autorepeat function via "xset -r" in the host.
  Normally, this setting should not have any effect on the guest, since it has it's own autorepeat setting. So there is some conflict here.

  Steps to reproduce:
  Start any linux/bsd guest system with xserver, open a terminal, press and hold a key for a short time: Look how it gets typed endlessly (Try a few times if it doesn't happen immediately).
  The easiest way is to run a linux live cd, like this (Link to example iso :http://download.grml.org/grml64-full_2018.12.iso)
  $ qemu-system-x86_64 -enable-kvm -m 512 -boot d -cdrom grml64-full_2018.12.iso

- 
  Qemu version info:
  QEMU emulator version 4.0.0
  Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
+ 
+ System info:
+ Linux **** 5.0.13-arch1-1-ARCH #1 SMP PREEMPT Sun May 5 18:05:41 UTC 2019 x86_64 GNU/Linux

-- 
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https://bugs.launchpad.net/bugs/1828272

Title:
  4.0 breaks keyboard autorepeat in guests with xserver

Status in QEMU:
  New

Bug description:
  Description:
  In a linux/bsd guest within X, pressing and holding a key for a short time causes an endless repeat of that key in the guest. The release of the key gets ignored.
  Example 1: pressing and holding 'a' for a few seconds results in typing of 'aaaaaaaaaaaa...' endlessly.
  Example 2: pressing and holding 'Backspace' for a few seconds results in deleting all your previously typed text.

  It doesn't happen within a VT in the guest. It also doesn't happen
  with guests that run windows, reactos or haiku for example.

  The problem goes away, when disabling xorgs autorepeat function via "xset -r" in the host.
  Normally, this setting should not have any effect on the guest, since it has it's own autorepeat setting. So there is some conflict here.

  Steps to reproduce:
  Start any linux/bsd guest system with xserver, open a terminal, press and hold a key for a short time: Look how it gets typed endlessly (Try a few times if it doesn't happen immediately).
  The easiest way is to run a linux live cd, like this (Link to example iso :http://download.grml.org/grml64-full_2018.12.iso)
  $ qemu-system-x86_64 -enable-kvm -m 512 -net none -boot d -cdrom grml64-full_2018.12.iso

  Qemu version info:
  QEMU emulator version 4.0.0
  Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers

  System info:
  Linux **** 5.0.13-arch1-1-ARCH #1 SMP PREEMPT Sun May 5 18:05:41 UTC 2019 x86_64 GNU/Linux

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