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[Bug 1907061] Re: qemu-system-x86_64 minimizing window causes keyboard i

From: Launchpad Bug Tracker
Subject: [Bug 1907061] Re: qemu-system-x86_64 minimizing window causes keyboard input lag globally
Date: Sat, 10 Jul 2021 04:17:38 -0000

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

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

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  qemu-system-x86_64 minimizing window causes keyboard input lag

Status in QEMU:

Bug description:
  After qemu window is minimized, it causes keyboard lag on the host for all 
applications, pressed keys will be delayed and very laggy, typing to notepad or 
any other text extremely slowly appear on the screen, queue is slowly processed.
  If qemu window is open back to normal size, keyboard is back to normal, 
everything is back to normal and stable, this behavior i have been testing 
since several months of qemu releases, i am reporting a bit late here, not 
breaking but it seems important and everytime i accidently minimize qemu, i 
remember it later and take qemu window to normal size back always, i try never 
minimize it anymore.
  This problem does not occur if using -display none
  Guest OS doesn't matter for this behavior, result is always same
  I am using:
  Windows 10 build 2004
  4K screen dpi scaling set to 150%

  If requested, i can record a video to see the problem clearly, but i
  think all information i give already clear now.

  Thanks for making quality software, hope all bugs fixed

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