Lost session after connecting external monitors
I connected my laptop to a dock with 2 monitors.
All the windows got moved to a single monitor & single virtual desktop (they were each on their own before).
After dragging a window to a new virtual desktop the session was lost.
2020-12-10T09:50:40.374270+0200 delly systemd[3026]: Stopping GNOME accessibility service...
2020-12-10T09:50:40.374145+0200 delly systemd[3026]: Stopped target GNOME XSettings target.
2020-12-10T09:50:40.374130+0200 delly systemd[3026]: Stopped target GNOME Wacom tablet support target.
2020-12-10T09:50:40.374114+0200 delly systemd[3026]: Stopped target GNOME USB protection target.
2020-12-10T09:50:40.374099+0200 delly systemd[3026]: Stopped target GNOME sound sample caching target.
2020-12-10T09:50:40.374083+0200 delly systemd[3026]: Stopped target GNOME smartcard target.
2020-12-10T09:50:40.374066+0200 delly systemd[3026]: Stopped target GNOME file sharing target.
2020-12-10T09:50:40.374049+0200 delly systemd[3026]: Stopped target GNOME FreeDesktop screensaver target.
2020-12-10T09:50:40.374031+0200 delly systemd[3026]: Stopped target GNOME RFKill support target.
2020-12-10T09:50:40.374013+0200 delly systemd[3026]: Stopped target GNOME printer notifications target.
2020-12-10T09:50:40.373996+0200 delly systemd[3026]: Stopped target GNOME power management target.
2020-12-10T09:50:40.373980+0200 delly systemd[3026]: Stopped target GNOME keyboard shortcuts target.
2020-12-10T09:50:40.373962+0200 delly systemd[3026]: Stopped target GNOME keyboard configuration target.
2020-12-10T09:50:40.373945+0200 delly systemd[3026]: Stopped target GNOME maintenance of expirable data target.
2020-12-10T09:50:40.373929+0200 delly systemd[3026]: Stopped target GNOME date & time target.
2020-12-10T09:50:40.373911+0200 delly systemd[3026]: Stopped target GNOME color management target.
2020-12-10T09:50:40.373892+0200 delly systemd[3026]: Stopped target GNOME accessibility target.
2020-12-10T09:50:40.373868+0200 delly systemd[3026]: Stopped target GNOME Session (session: gnome).
2020-12-10T09:50:40.373849+0200 delly systemd[3026]: Stopped target GNOME session X11 services.
2020-12-10T09:50:40.373832+0200 delly systemd[3026]: Stopped target GNOME session X11 services.
2020-12-10T09:50:40.373817+0200 delly systemd[3026]: Stopped target GNOME Wayland Session.
2020-12-10T09:50:40.373786+0200 delly systemd[3026]: Stopped target GNOME Session.
2020-12-10T09:50:40.373759+0200 delly systemd[3026]: Stopped target Current graphical user session.
2020-12-10T09:50:40.373721+0200 delly systemd[3026]: Stopped target GNOME Wayland Session (session: gnome).
2020-12-10T09:50:40.373145+0200 delly systemd[3026]: org.gnome.Shell@wayland.service: Triggering OnFailure= dependencies.
2020-12-10T09:50:40.372894+0200 delly systemd[3026]: org.gnome.Shell@wayland.service: Failed with result 'signal'.
2020-12-10T09:50:40.365603+0200 delly systemd[3026]: org.gnome.Shell@wayland.service: Main process exited, code=killed, status=6/ABRT
2020-12-10T09:50:40.334134+0200 delly systemd[3026]: org.gnome.SettingsDaemon.XSettings.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.324563+0200 delly unknown[447346]: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). >
2020-12-10T09:50:40.382557+0200 delly kernel: rfkill: input handler enabled
2020-12-10T09:50:40.324555+0200 delly unknown[447346]: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). >
2020-12-10T09:50:40.322253+0200 delly systemd[3026]: org.gnome.SettingsDaemon.XSettings.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.317115+0200 delly unknown[447356]: gsd-xsettings: Fatal IO error 11 (Resource temporarily unavailable) on X server :1.
2020-12-10T09:50:40.315116+0200 delly thunderbird[557489]: thunderbird: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
2020-12-10T09:50:40.305373+0200 delly systemd[3026]: vte-spawn-2a3b83b1-732c-41b6-8966-96799241db0f.scope: Succeeded.
2020-12-10T09:50:40.300908+0200 delly systemd[3026]: app-gnome-rhythmbox-447472.scope: Succeeded.
2020-12-10T09:50:40.296645+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Wacom.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.296393+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Keyboard.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.296146+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Power.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.295848+0200 delly systemd[3026]: org.gnome.SettingsDaemon.MediaKeys.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.295111+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Color.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.293373+0200 delly systemd[3026]: vte-spawn-ef9eeef8-7825-4126-8e86-9770facdcd50.scope: Succeeded.
2020-12-10T09:50:40.338926+0200 delly chromium.desktop[447569]: [447569:447569:1210/095040.315172:ERROR:x11_util.cc(109)] X IO error received (X server proba>
2020-12-10T09:50:40.291383+0200 delly systemd[3026]: vte-spawn-a2c2c8b8-6bd0-49d2-80e9-f345f487eaa2.scope: Succeeded.
2020-12-10T09:50:40.325340+0200 delly chromium.desktop[447527]: [447527:447527:1210/095040.315169:ERROR:chrome_browser_main_extra_parts_x11.cc(62)] X IO erro>
2020-12-10T09:50:40.284051+0200 delly systemd[3026]: gnome-terminal-server.service: Failed with result 'exit-code'.
2020-12-10T09:50:40.284036+0200 delly systemd[3026]: gnome-terminal-server.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.282332+0200 delly systemd[3026]: app-gnome-org.gnome.Evolution\x2dalarm\x2dnotify-447191.scope: Succeeded.
2020-12-10T09:50:40.281977+0200 delly unknown[546726]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.275776+0200 delly systemd[3026]: vte-spawn-c1ce9bd2-d5f8-483c-bbbd-657aed667792.scope: Succeeded.
2020-12-10T09:50:40.275159+0200 delly systemd[3026]: vte-spawn-74dfc6d5-5334-4eb3-b980-11a22f9ce1d4.scope: Succeeded.
2020-12-10T09:50:40.272370+0200 delly systemd[3026]: vte-spawn-c117435f-0954-46e8-9773-eaa435bbfd48.scope: Succeeded.
2020-12-10T09:50:40.269664+0200 delly unknown[447191]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.263360+0200 delly systemd[3026]: vte-spawn-d9cdf517-14ac-4b11-9f90-86a74af0e183.scope: Succeeded.
2020-12-10T09:50:40.248468+0200 delly unknown[690010]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.225224+0200 delly unknown[546730]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.206659+0200 delly unknown[447438]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.206334+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Color.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.204822+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Wacom.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.203502+0200 delly unknown[447156]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.202865+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Keyboard.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.201251+0200 delly unknown[447136]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.284966+0200 delly polkitd[1493]: Unregistered Authentication Agent for unix-session:223 (system bus name :1.1277, object path /org/freede>
2020-12-10T09:50:40.199555+0200 delly systemd[3026]: org.gnome.SettingsDaemon.Power.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.286914+0200 delly gnome-shell[447000]: (EE) failed to read Wayland events: Broken pipe
2020-12-10T09:50:40.197722+0200 delly systemd[3026]: org.gnome.SettingsDaemon.MediaKeys.service: Main process exited, code=exited, status=1/FAILURE
2020-12-10T09:50:40.197332+0200 delly unknown[447140]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.195919+0200 delly unknown[447138]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.179428+0200 delly unknown[556113]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.176805+0200 delly unknown[447127]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.175843+0200 delly rhythmbox[447472]: Error reading events from display: Broken pipe
2020-12-10T09:50:40.142898+0200 delly gnome-shell[446969]: #3 7ffef9fbf190 b resource:///org/gnome/shell/ui/dnd.js:53 (1fdeda704a60 @ 18)
2020-12-10T09:50:40.142898+0200 delly gnome-shell[446969]: #2 7ffef9fbf0d0 b resource:///org/gnome/shell/ui/dnd.js:246 (1fdeda7045b0 @ 220)
2020-12-10T09:50:40.142898+0200 delly gnome-shell[446969]: #1 7ffef9fbf000 b resource:///org/gnome/shell/ui/dnd.js:600 (1fdeda704240 @ 1121)
2020-12-10T09:50:40.142898+0200 delly gnome-shell[446969]: #0 7ffef9fbe8d0 b resource:///org/gnome/shell/ui/workspace.js:1304 (1836c490fd80 @ 66)
2020-12-10T09:50:40.142898+0200 delly gnome-shell[446969]: == Stack trace for context 0x55d7a313e1c0 ==
2020-12-10T09:50:40.142269+0200 delly gnome-shell[446969]: Bug in window manager: Workspace does not exist to index!
2020-12-10T09:50:39.679230+0200 delly gnome-shell[446969]: libinput error: event8 - Microsoft Microsoft® Classic IntelliMouse®: client bug: event processing>
2020-12-10T09:50:37.156907+0200 delly chromium.desktop[447527]: [447527:447527:1210/095037.156359:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:37.156098+0200 delly chromium.desktop[447527]: [447527:447527:1210/095037.156046:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:33.119099+0200 delly systemd[1]: NetworkManager-dispatcher.service: Succeeded.
2020-12-10T09:50:32.022685+0200 delly chromium.desktop[447527]: [447527:447527:1210/095032.022260:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:32.022241+0200 delly chromium.desktop[447527]: [447527:447527:1210/095032.022188:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:28.954929+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.954892+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.937968+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.937934+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.921532+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.921499+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.904778+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.904745+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.888155+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.888119+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.871705+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.871668+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.855129+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.855097+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.838092+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.838058+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.821398+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.821363+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.804619+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.804610+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.788398+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.788381+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.769177+0200 delly chromium.desktop[447527]: [447527:447527:1210/095028.767300:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:28.769177+0200 delly chromium.desktop[447527]: [447527:447527:1210/095028.767215:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:28.769177+0200 delly chromium.desktop[447527]: [447527:447527:1210/095028.767072:ERROR:edid_parser.cc(102)] Too short EDID data: manufacture>
2020-12-10T09:50:28.763451+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.763438+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.712869+0200 delly NetworkManager[1489]: <info> [1607586628.7128] agent-manager: agent[cf1cd61612e3d1a2,:1.1277/org.gnome.Shell.NetworkAg>
2020-12-10T09:50:28.707515+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:28.707487+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:28.512359+0200 delly gdm-password][725596]: gkr-pam: unlocked login keyring
2020-12-10T09:50:28.485223+0200 delly gdm-password][725596]: pam_unix(gdm-password:auth): Couldn't open /etc/securetty: No such file or directory
2020-12-10T09:50:28.349080+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000e2218929 port 3: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:28.341093+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 000000005915d628 port 1: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:28.025080+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000e2218929 port 1: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:27.997100+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000e2218929 port 1: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:27.989074+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000e2218929 port 3: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:27.981091+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 000000005915d628 port 1: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:27.673093+0200 delly kernel: [drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000e2218929 port 1: DPCD read on addr 0x4b0 for 1>
2020-12-10T09:50:27.152791+0200 delly fwupd[25581]: 07:50:27:0152 FuDeviceList ignoring device d762543f8c20f636e6fff031a000078d3e10c600 [synaptics_ms>
2020-12-10T09:50:26.921367+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.921334+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.903211+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.903178+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.887593+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.887559+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.870379+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.870345+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.853822+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.853795+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.837349+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.837321+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.820434+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.820404+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.804558+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.804525+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.787085+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.787052+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.770564+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.770532+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.753790+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.753758+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.736869+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.736841+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.720507+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.720479+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.703013+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.702999+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.686954+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.686942+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.670291+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.670277+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.658529+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.658508+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:26.640625+0200 delly gdm-password][725596]: pam_unix(gdm-password:auth): Couldn't open /etc/securetty: No such file or directory
2020-12-10T09:50:26.639346+0200 delly gnome-shell[446969]: Can't update stage views actor ClutterText is on because it needs an allocation.
2020-12-10T09:50:26.639337+0200 delly gnome-shell[446969]: Can't update stage views actor StLabel is on because it needs an allocation.
2020-12-10T09:50:25.345995+0200 delly systemd[1]: Finished Daily apt upgrade and clean activities.
Edited by Lionel Landwerlin