This bug was fixed in the package mutter - 3.37.91-1ubuntu1
---------------
mutter (3.37.91-1ubuntu1) groovy; urgency=medium
* Merge with debian, including new upstream stable release, remaining changes:
- debian/gbp.conf: update upstream branch to point to ubuntu/master
- debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
+ X11: Add support for fractional scaling using Randr
* d/p/x11-Add-support-for-fractional-scaling-using-Randr.patch:
- Refresh as per upstream changes
mutter (3.37.91-1) experimental; urgency=medium
* New upstream release
- Support unredirecting fullscreen wayland surfaces
- Support area screencasts
- Allow inhibiting remote access
- Drive each monitor by its own frame clock (LP: #1730460)
- Fix copy/paste failures on X11 (LP: #1879968)
- Make window-aliveness checks less aggressive
- Limit mipmap levels when rendering background (LP: #1862308)
- Remove more long-deprecated Clutter APIs
- Support custom keyboard layouts in $XDG_CONFIG_HOME/xkb
- Optimize resource scale computation for wayland fractional scaling
- Support tap-button-map and tap-drag-lock touchpad settings
- Fix wine copy & paste
- Add API to launch trusted wayland clients
- Invalidate offscreen effect cache on video memory purge (LP: #1855757)
* debian: Update package and file names to mutter API version
* debian/control: Bump dependencies to match upstream requirements
* debian/clean: Remove as HOME and XRD are managed now by dh
* debian/copyright: Avoid redundant globbing patterns
* debian/gbp.conf: target upstream/latest branch
* debian/libmutter-7-0.symbols: Update symbols file
* debian/patches: Refresh
* d/p/debian/tests-Tag-closed-transient-no-input-tests-as-flaky.patch:
- Renamed into d/p/debian/tests-Tag-unstable-tests-as-flaky.patch
- Reduced the number of "flaky" tests to the ones time-dependent only
* debian/rules:
- Compute and generate a MUTTER_API_VERSION and replace it everywhere
- Remove XDG_RUNTIME_DIR wrapper workaround
- Don't run tests at all in riscv64
- Don't set again default configuration values (it makes the delta clearer)
- Never ignore test failures in amd64
- Remove test num processes re-configuration
- Run tests in s390x, no failures currently
- Don't test in alpha hppa powerpc sparc64 x32 (Closes: #959415)
* debian/with-temp-xdg-runtime-dir: Dropped, new dh will handle it for us
* debian/watch: Scan for all versions, not just the stable-branch
* debian/*.install: Use dh variable substitution in install files
mutter (3.36.5-1) unstable; urgency=medium
* Team upload
* New upstream release
- Screencast fixes and improvements
- Fix glitches when subsurfaces extend outside the toplevel
- Improve background display in overview workspace switcher
- Fix wine copy & paste
- Plug memory leaks
* Drop patches that were applied upstream
-- Marco Trevisan (Treviño) <ma...@ubuntu.com> Fri, 28 Aug 2020
01:10:32 +0200
** Changed in: mutter (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1730460
Title:
Very poor multi-monitor performance in Wayland sessions
Status in Mutter:
Fix Released
Status in mutter package in Ubuntu:
Fix Released
Bug description:
Upstream bug:
https://gitlab.gnome.org/GNOME/mutter/issues/3
---
When dragging a window between displays, I can see cpu usage increase
while framerate drops dramatically to single numbers.
Desktop scaling is 1.0, one is a WXGA screen and another FHD.
Ubuntu session (wayland), 17.10.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.1-0ubuntu5
ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4
Uname: Linux 4.13.0-16-lowlatency x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CurrentDesktop: Unity:Unity7:ubuntu
Date: Mon Nov 6 17:09:20 2017
DisplayManager: lightdm
GsettingsChanges:
b'org.gnome.shell' b'favorite-apps'
b"['/home/development/bin/firefox.desktop', 'org.gnome.Nautilus.desktop',
'jetbrains-phpstorm.desktop', 'code.desktop', 'postman.desktop',
'standard_notes.desktop']"
b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
b'org.gnome.desktop.interface' b'icon-theme' b"'ePapirus'"
b'org.gnome.desktop.interface' b'gtk-theme' b"'DarkNumix'"
InstallationDate: Installed on 2016-03-13 (603 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to artful on 2017-10-19 (17 days ago)
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