It looks like you're using Xorg fractional scaling, so yes that will take the texture requirements past the limit supported by the GPU if you do it across multiple 4K monitors. Some parts of the desktop will cope and other parts (GTK) might not cope.
To confirm this, please run: xrandr --verbose > xrandr.txt and attach the resulting text file here. Possible workarounds (you only need one): * Only use integer scaling * Only use Wayland sessions * Use fewer monitors ** Package changed: gnome-shell (Ubuntu) => gtk+3.0 (Ubuntu) ** Package changed: gtk+3.0 (Ubuntu) => ubuntu ** Package changed: ubuntu => nvidia-graphics-drivers-525 (Ubuntu) ** Package changed: gnome-shell-extension-desktop-icons-ng (Ubuntu) => gtk+3.0 (Ubuntu) ** Tags added: xrandr-scaling -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/2004533 Title: very unstable desktop, icons vanish, cannot control windows, cannot resize or scale multi monitors easily. Status in gtk+3.0 package in Ubuntu: Incomplete Status in nvidia-graphics-drivers-525 package in Ubuntu: Incomplete Bug description: A tiny sample of of my logs starting with the subject of this thread: gnome-shell[15376]: Can't update stage views actor [:0x564e0cfc0900] is on because it needs an allocation. others gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:18.003: drawing failure for widget 'GtkImage': invalid value (typically too big) for the size of the input (surface, pattern, etc.) gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.986: infinite surface size not supported gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkImage': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkEventBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkEventBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkFixed': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkEventBox': invalid value (typically too big) for the size of the input (surface, pattern, etc.) Feb 1 19:23:17 gnome-shell[15376]: DING: (gjs:23748): Gtk-WARNING **: 19:23:17.970: drawing failure for widget 'GtkApplicationWindow': invalid value (typically too big) for the size of the input (surface, pattern, etc.) st_widget_get_theme_node called on the widget [0x564e28a187d0 StBoxLayout ("…")] which is not in the stage. gnome-shell[15376]: Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3a00004 Feb 1 19:02:01 gnome-control-c[19519]: Finalizing AdwPreferencesPage 0x556a2f5a5b70, but it still has children left: Feb 1 19:02:01 gnome-control-c[19519]: - GtkCenterBox 0x556a2f5b2300 Feb 1 19:02:03 gnome-shell[15376]: Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3a00018 ProblemType: Bug DistroRelease: Ubuntu 22.10 Package: gnome-shell 43.1-0ubuntu1 ProcVersionSignature: Ubuntu 5.19.0-29.30-generic 5.19.17 Uname: Linux 5.19.0-29-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.23.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Wed Feb 1 23:40:47 2023 DisplayManager: gdm3 GsettingsChanges: b'org.gnome.shell' b'disable-user-extensions' b'true' b'org.gnome.desktop.input-sources' b'sources' b"[('xkb', 'us')]" InstallationDate: Installed on 2021-01-17 (745 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) ProcEnviron: LANGUAGE=en_CA:en TERM=xterm-256color PATH=(custom, no user) LANG=en_CA.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 43.0-1ubuntu4 SourcePackage: gnome-shell UpgradeStatus: Upgraded to kinetic on 2023-01-05 (27 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/2004533/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
