This bug was fixed in the package mutter - 3.32.0-1ubuntu2
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mutter (3.32.0-1ubuntu2) disco; urgency=medium
* debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
- Don't invert the screen size when rotation is enabled (LP: #1822513)
- Remove unneeded cleanup changes
- Use xcb checked function to set scaling to catch errors
- Update screen size only after monitors modes have been derived
(LP: #1822616)
- Trigger a monitors rebuild only if scale has changed (LP: #1823485)
- Only update UI scaling when output scaling is enabled (LP: #1822478)
-- Marco Trevisan (Treviño) <ma...@ubuntu.com> Wed, 03 Apr 2019
19:19:59 -0400
** Changed in: mutter (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1823485
Title:
X11: switching integer scaling values when fractional is enabled
doesn't always work
Status in mutter package in Ubuntu:
Fix Released
Bug description:
- Enable fractional scaling with:
- gsettings set org.gnome.mutter experimental-features
"['x11-randr-fractional-scaling']"
From GNOME control center:
- Say you're at 100%, switch to 200%
- Or you're at 200% and switch to 100%.
This switch might need two "apply" activations.
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https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1823485/+subscriptions
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