Thanks!
The blurriness in comment #4 is expected. Any apps which don't natively
support scaling will be scaled by the compositor, which means they will
either appear blurry or unevenly pixelated. We choose blurry. So this is
not a mutter or gnome-shell bug. It is however a Firefox bug for not
supporting scaling.
As for the black frame in comment #5, that is a different issue. That is
bug 1751593.
** Changed in: mutter (Ubuntu)
Status: Incomplete => Invalid
** Also affects: firefox (Ubuntu)
Importance: Undecided
Status: New
** Also affects: thunderbird (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- mutter framebuffer scaling blurs display
+ Some apps appear blurry with framebuffer scaling
** Also affects: libreoffice (Ubuntu)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mutter in Ubuntu.
https://bugs.launchpad.net/bugs/1825625
Title:
Some apps appear blurry with framebuffer scaling
Status in firefox package in Ubuntu:
New
Status in libreoffice package in Ubuntu:
New
Status in mutter package in Ubuntu:
Invalid
Status in thunderbird package in Ubuntu:
New
Bug description:
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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