[Bug 1825625] Re: Some apps appear blurry with framebuffer scaling

[Daniel van Vugt]

** Description changed:

+ Microsoft VScode bug: https://github.com/Microsoft/vscode/issues/72759
+ 
  Setting the framebuffer scaling (with gsettings set org.gnome.mutter
  experimental-features "['scale-monitor-framebuffer']") allows the
  display on HiDPi to be scaled to something different than
  100%/200%/300%.
  
  Which would be fine.
  
  However, the display is rendered such that most applications provide
  blurred display of text and graphics.
  
  This is not always the case (e.g. system settings are displayed
  correctly, Thunderbird and Firefox are blurred).
  
  Also the screen flickers when selection menus or resizing the windows.
  A black border appears around the windows where the shadow should appear. It gets removed a few seconds later but still is irritating.
  
  This issue is not urgent, just annoying. It can be worked around by
  removing the settings in gsetting / dconf.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: mutter 3.32.0+git20190410-1ubuntu1
  ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
  Uname: Linux 5.0.0-13-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr 20 11:11:55 2019
  InstallationDate: Installed on 2018-04-30 (355 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  SourcePackage: mutter
  UpgradeStatus: Upgraded to disco on 2019-04-19 (0 days ago)

** Also affects: chromium-browser (Ubuntu)
   Importance: Undecided
       Status: New

** Description changed:

  Microsoft VScode bug: https://github.com/Microsoft/vscode/issues/72759
+ Chromium bug?: https://bugs.chromium.org/p/chromium/issues/detail?id=578890
  
  Setting the framebuffer scaling (with gsettings set org.gnome.mutter
  experimental-features "['scale-monitor-framebuffer']") allows the
  display on HiDPi to be scaled to something different than
  100%/200%/300%.
  
  Which would be fine.
  
  However, the display is rendered such that most applications provide
  blurred display of text and graphics.
  
  This is not always the case (e.g. system settings are displayed
  correctly, Thunderbird and Firefox are blurred).
  
  Also the screen flickers when selection menus or resizing the windows.
  A black border appears around the windows where the shadow should appear. It gets removed a few seconds later but still is irritating.
  
  This issue is not urgent, just annoying. It can be worked around by
  removing the settings in gsetting / dconf.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: mutter 3.32.0+git20190410-1ubuntu1
  ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
  Uname: Linux 5.0.0-13-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr 20 11:11:55 2019
  InstallationDate: Installed on 2018-04-30 (355 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  SourcePackage: mutter
  UpgradeStatus: Upgraded to disco on 2019-04-19 (0 days ago)

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https://bugs.launchpad.net/bugs/1825625

Title:
  Some apps appear blurry with framebuffer scaling

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