[Bug 1836361] Re: Windows guest display is inverted vertically

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https://bugs.launchpad.net/bugs/1836361

Title:
  Windows guest display is inverted vertically

Status in spice-html5 package in Ubuntu:
  New
Status in spice-html5 source package in Bionic:
  New
Status in spice-html5 source package in Cosmic:
  New
Status in spice-html5 source package in Disco:
  New

Bug description:
  [Impact]

   * When running a Windows VM using the QXL driver from [1] the display
  is inverted and therefore almost unusable.

  [Test Case]

   * Launch a Windows VM with a QXL display (I used Win2k16 running under libvirt).
   * Start websockify
       sudo apt install python3-websockify && websockify 5959 localhost:5900
   * Run a HTTP server to spice-html5:
     cd /usr/share/spice-html5 && python -m SimpleHTTPServer
   * Open a browser and go to http://localhost:8000
   * Enter
     host: localhost
     port: 5959
   * Click start

  Expected behaviour:
  Guest UI is displayed correctly.

  Actual behaviour:
  Guest UI gets inverted on refresh.

  [Regression Potential]

   * This component may be used with openstack and it's possible that
  there are workarounds in place, so they may start working incorrectly.

  [Other Info]

   * Part of this fixed is included cosmic and onwards (spice-html5
  0.1.7-3).

  [1] https://fedorapeople.org/groups/virt/virtio-win/direct-downloads
  /latest-virtio/virtio-win.iso

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