"Fullscreen" sounds like an important factor. Indeed to monitors without a panel, simply maximizing a window makes it fullscreen. Another potentially important factor is whether your machine has dual GPUs. This information helps me to narrow down where to look.
** Tags added: triple-buffering ** Changed in: mutter (Ubuntu) Assignee: (unassigned) => Daniel van Vugt (vanvugt) ** Changed in: mutter (Ubuntu) Importance: Undecided => High -- 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/2035016 Title: one of 3 monitors "frozen" when a window moves there Status in mutter package in Ubuntu: Incomplete Bug description: When I move a window to one of my 3 monitors (not the main display), the monitor freezes. That means that moving the mouse there doesn't work and the picture is frozen on that monitor (including the mouse pointer which is visible there). The journal has those logs: Sep 10 07:21:49 clown-t14 gnome-shell[5640]: meta_window_set_stack_position_no_sync: assertion 'window->stack_position >= 0' failed Sep 10 07:21:49 clown-t14 systemd[5341]: Started vte-spawn-99883356-4f85-429c-a61b-60abac422222.scope - VTE child process 15895 launched by kgx process 7379. Sep 10 07:22:00 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Sep 10 07:22:04 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Sep 10 07:22:04 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Sep 10 07:22:04 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Sep 10 07:22:05 clown-t14 gnome-shell[5640]: Object .Gjs_ui_workspaceThumbnail_ThumbnailsBox (0x55b07b31e510), has been already disposed — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs. Sep 10 07:22:05 clown-t14 gnome-shell[5640]: == Stack trace for context 0x55b0777837f0 == Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #0 7ffe4d1d5260 b resource:///org/gnome/shell/ui/workspacesView.js:646 (276d81d44970 @ 33) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #1 7ffe4d1d53b0 b resource:///org/gnome/shell/ui/workspacesView.js:693 (276d81d44a10 @ 472) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #2 55b07789ddb8 i resource:///org/gnome/shell/ui/workspace.js:856 (276d81d040b0 @ 369) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #3 55b07789dd30 i resource:///org/gnome/shell/ui/workspace.js:808 (9aad18f9fb0 @ 17) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #4 55b07789dc98 i resource:///org/gnome/shell/ui/workspacesView.js:1014 (276d81d45420 @ 129) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #5 55b07789dc08 i resource:///org/gnome/shell/ui/overviewControls.js:699 (9aad188a100 @ 50) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #6 55b07789db80 i resource:///org/gnome/shell/ui/layout.js:372 (793307f55b0 @ 22) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #7 55b07789daf0 i resource:///org/gnome/shell/ui/overview.js:652 (9aad1885f10 @ 190) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #8 55b07789da70 i resource:///org/gnome/shell/ui/overview.js:635 (9aad1885ec0 @ 12) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #9 55b07789d9f0 i resource:///org/gnome/shell/ui/overviewControls.js:750 (9aad188a330 @ 55) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #10 7ffe4d1dc560 b resource:///org/gnome/shell/ui/environment.js:84 (7933077d560 @ 39) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #11 55b07789d968 i resource:///org/gnome/shell/ui/environment.js:250 (7933077da60 @ 14) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #12 55b07789d8d8 i resource:///org/gnome/shell/ui/init.js:21 (7933077d060 @ 48) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: == Stack trace for context 0x55b0777837f0 == Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #0 7ffe4d1d53b0 b resource:///org/gnome/shell/ui/workspacesView.js:695 (276d81d44a10 @ 489) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #1 55b07789ddb8 i resource:///org/gnome/shell/ui/workspace.js:856 (276d81d040b0 @ 369) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #2 55b07789dd30 i resource:///org/gnome/shell/ui/workspace.js:808 (9aad18f9fb0 @ 17) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #3 55b07789dc98 i resource:///org/gnome/shell/ui/workspacesView.js:1014 (276d81d45420 @ 129) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #4 55b07789dc08 i resource:///org/gnome/shell/ui/overviewControls.js:699 (9aad188a100 @ 50) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #5 55b07789db80 i resource:///org/gnome/shell/ui/layout.js:372 (793307f55b0 @ 22) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #6 55b07789daf0 i resource:///org/gnome/shell/ui/overview.js:652 (9aad1885f10 @ 190) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #7 55b07789da70 i resource:///org/gnome/shell/ui/overview.js:635 (9aad1885ec0 @ 12) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #8 55b07789d9f0 i resource:///org/gnome/shell/ui/overviewControls.js:750 (9aad188a330 @ 55) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #9 7ffe4d1dc560 b resource:///org/gnome/shell/ui/environment.js:84 (7933077d560 @ 39) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #10 55b07789d968 i resource:///org/gnome/shell/ui/environment.js:250 (7933077da60 @ 14) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: #11 55b07789d8d8 i resource:///org/gnome/shell/ui/init.js:21 (7933077d060 @ 48) Sep 10 07:22:05 clown-t14 gnome-shell[5640]: Object .Gjs_ui_workspaceThumbnail_ThumbnailsBox (0x55b07b31e510), has been already disposed — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs. Sep 10 07:22:05 clown-t14 gnome-shell[5640]: JS ERROR: TypeError: windowInfo is undefined vfunc_allocate@resource:///org/gnome/shell/ui/workspace.js:711:17 vfunc_allocate@resource:///org/gnome/shell/ui/workspacesView.js:562:25 vfunc_allocate@resource:///org/gnome/shell/ui/workspacesView.js:718:30 removeWindow@resource:///org/gnome/shell/ui/workspace.js:856:29 addWindow/<.destroyId<@resource:///org/gnome/shell/ui/workspace.js:808:22 vfunc_hide@resource:///org/gnome/shell/ui/workspacesView.js:1014:38 vfunc_unmap@resource:///org/gnome/shell/ui/overviewControls.js:699:38 hideOverview@resource:///org/gnome/shell/ui/layout.js:372:28 _hideDone@resource:///org/gnome/shell/ui/overview.js:652:32 _animateNotVisible/<@resource:///org/gnome/shell/ui/overview.js:635:55 onStopped@resource:///org/gnome/shell/ui/overviewControls.js:750:21 _makeEaseCallback/<@resource:///org/gnome/shell/ui/environment.js:84:22 _easeActorProperty/<@resource:///org/gnome/shell/ui/environment.js:250:60 @resource:///org/gnome/shell/ui/init.js:21:20 Sep 10 07:22:05 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead Sep 10 07:22:05 clown-t14 gnome-shell[5640]: Meta.Rectangle is deprecated, use Mtk.Rectangle instead ProblemType: Bug DistroRelease: Ubuntu 23.10 Package: gnome-shell 45~rc-0ubuntu2 ProcVersionSignature: Ubuntu 6.3.0-7.7-generic 6.3.5 Uname: Linux 6.3.0-7-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.27.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sun Sep 10 07:22:44 2023 DisplayManager: gdm3 InstallationDate: Installed on 2023-05-10 (123 days ago) InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/usr/bin/zsh TERM=xterm-256color XDG_RUNTIME_DIR=<set> RebootRequiredPkgs: Error: path contained symlinks. RelatedPackageVersions: mutter-common 45~rc-0ubuntu2 SourcePackage: gnome-shell UpgradeStatus: Upgraded to mantic on 2023-07-19 (52 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2035016/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp