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  • #11500
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Issue created May 30, 2016 by intrigeri@intrigeriMaintainer

Poor graphics performance in KVM guest with QXL driver

Originally created by @intrigeri on #11500 (Redmine)

A few of us have experienced that, along with some “out of surface” log spamming, for years. This has been reported to Debian and some workarounds are listed there:

  • disable surfaces with a patch from Fedora (and while we’re at it, http://pkgs.fedoraproject.org/cgit/rpms/xorg-x11-drv-qxl.git/tree/qxl-kms-disable-composite.patch apparently “helps with glitches”)
  • disable surfaces via config file

Debian maintainers understandably want the patches to go upstream first, which apparently is planned, but we might want to be faster, e.g. with the config file option.

Feature Branch: bugfix/11500-slow-qxl

Related issues

  • Related to #8114 (closed)
  • Related to #11489 (closed)
  • Related to #11514 (closed)
  • Related to #14786 (closed)
Edited May 15, 2020 by intrigeri
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