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I'm using two external screens with two mini display ports with Debian 9.8 on Wayland with Gnome. Use case is I let the computer to go to sleep (stand by) then connect again to screens and tries to log in. Then the whole session crashes. However this happens occasionally.

When probing logs came with this snippet which shows the session crashing time.

Feb 22 14:19:39 localhost.localdomain systemd-udevd[15633]: Process '/usr/lib/snapd/snap-device-helper change snap_vlc
_vlc /devices/pci0000:00/0000:00:02.0/drm/card0 226:0' failed with exit code 2.
Feb 22 14:19:39 localhost.localdomain systemd-udevd[15635]: failed to execute '/usr/lib/snapd/snap-device-helper' '/usr/lib/snapd/snap-device-helper change snap_whatsdesk_whatsdesk /devices/pci0000:00/0000:00:02.0/drm/card0 226:0': No such file or directory
Feb 22 14:19:39 localhost.localdomain systemd-udevd[15633]: Process '/usr/lib/snapd/snap-device-helper change snap_whatsdesk_whatsdesk /devices/pci0000:00/0000:00:02.0/drm/card0 226:0' failed with exit code 2.
Feb 22 14:19:39 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:39 localhost.localdomain gnome-shell[1027]: Failed to apply DRM plane transform 0: Permission denied
Feb 22 14:19:39 localhost.localdomain gnome-shell[1027]: Failed to apply DRM plane transform 0: Permission denied
Feb 22 14:19:39 localhost.localdomain gnome-settings-[1130]: failed to create device: failed to obtain org.freedesktop.color-manager.create-device auth
Feb 22 14:19:39 localhost.localdomain gnome-settings-[1130]: no xrandr-HDMI-1 device found: Failed to find output xrandr-HDMI-1
Feb 22 14:19:40 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:40 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:40 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:40 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:40 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output HDMI-1: No such file or directory
Feb 22 14:19:40 localhost.localdomain gnome-settings-[2971]: failed to get edid: unable to get EDID for output
Feb 22 14:19:41 localhost.localdomain gnome-settings-[2971]: unable to get EDID for xrandr-HDMI-1: unable to get EDID for output
Feb 22 14:19:42 localhost.localdomain kernel: thunderbolt 0000:07:00.0: resetting error on 0:c.
Feb 22 14:19:42 localhost.localdomain kernel: thunderbolt 0000:07:00.0: 0:c: got unplug event for disconnected port, ignoring
Feb 22 14:19:42 localhost.localdomain systemd-udevd[15660]: failed to execute '/usr/lib/snapd/snap-device-helper' '/usr/lib/snapd/snap-device-helper change snap_vlc_vlc /devices/pci0000:00/0000:00:02.0/drm/card0 226:0': No such file or directory
Feb 22 14:19:42 localhost.localdomain systemd-udevd[15659]: Process '/usr/lib/snapd/snap-device-helper change snap_vlc_vlc /devices/pci0000:00/0000:00:02.0/drm/card0 226:0' failed with exit code 2.
Feb 22 14:19:42 localhost.localdomain systemd-udevd[15661]: failed to execute '/usr/lib/snapd/snap-device-helper' '/usr/lib/snapd/snap-device-helper change snap_whatsdesk_whatsdesk /devices/pci0000:00/0000:00:02.0/drm/card0 226:0': No such file or directory
Feb 22 14:19:42 localhost.localdomain systemd-udevd[15659]: Process '/usr/lib/snapd/snap-device-helper change snap_whatsdesk_whatsdesk /devices/pci0000:00/0000:00:02.0/drm/card0 226:0' failed with exit code 2.
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output eDP-1: No such file or directory
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: Window manager warning: Failed to read EDID of output DP-2: No such file or directory
Feb 22 14:19:43 localhost.localdomain gnome-shell[1027]: Failed to apply DRM plane transform 0: Permission denied
Feb 22 14:19:43 localhost.localdomain gnome-shell[1027]: Failed to apply DRM plane transform 0: Permission denied
Feb 22 14:19:43 localhost.localdomain gnome-shell[1027]: Failed to apply DRM plane transform 0: Permission denied
Feb 22 14:19:43 localhost.localdomain gnome-settings-[1130]: failed to create device: failed to obtain org.freedesktop.color-manager.create-device auth
Feb 22 14:19:43 localhost.localdomain gnome-settings-[1130]: no xrandr-DP-2 device found: Failed to find output xrandr-DP-2
Feb 22 14:19:43 localhost.localdomain gnome-settings-[1130]: no xrandr-HDMI-1 device found: Failed to find output xrandr-HDMI-1
Feb 22 14:19:43 localhost.localdomain kernel: gnome-shell[2311]: segfault at 55f5cd584980 ip 00007f832478d1fd sp 00007ffe236818f0 error 4 in libmutter.so.0.0.0[7f83246f5000+12c000]
Feb 22 14:19:43 localhost.localdomain gedit[4871]: Error reading events from display: Broken pipe
Feb 22 14:19:43 localhost.localdomain gnome-terminal-[3221]: Error reading events from display: Broken pipe
Feb 22 14:19:43 localhost.localdomain evolution-alarm[3067]: Error reading events from display: Broken pipe
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: (EE)
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: Fatal server error:
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: (EE) failed to read Wayland events: Broken pipe
Feb 22 14:19:43 localhost.localdomain org.gnome.Shell.desktop[2311]: (EE)
Feb 22 14:19:43 localhost.localdomain gnome-session-binary[2209]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
Feb 22 14:19:43 localhost.localdomain gnome-session[2209]: gnome-session-binary[2209]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
Feb 22 14:19:43 localhost.localdomain geary[3094]: Error reading events from display: Broken pipe
Feb 22 14:19:43 localhost.localdomain polkitd(authority=local)[752]: Unregistered Authentication Agent for unix-session:2 (system bus name :1.77, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Feb 22 14:19:43 localhost.localdomain gnome-session-binary[2209]: Unrecoverable failure in required component org.gnome.Shell.desktop
Feb 22 14:19:43 localhost.localdomain gnome-software[3064]: Error reading events from display: Broken pipe
Feb 22 14:19:43 localhost.localdomain dropbox.desktop[3084]: ICE default IO error handler doing an exit(), pid = 9479, errno = 11
Feb 22 14:19:43 localhost.localdomain gnome-settings-daemon.desktop[2971]: xcb_connection_has_error() returned true
Feb 22 14:19:43 localhost.localdomain firefox-esr.desktop[3078]: xcb_connection_has_error() returned true
Feb 22 14:19:43 localhost.localdomain bluetoothd[706]: Endpoint unregistered: sender=:1.89 path=/MediaEndpoint/A2DPSource
Feb 22 14:19:43 localhost.localdomain gnome-settings-daemon.desktop[2971]: xcb_connection_has_error() returned true
Feb 22 14:19:43 localhost.localdomain systemd[2103]: gnome-terminal-server.service: Main process exited, code=exited, status=1/FAILURE
Feb 22 14:19:43 localhost.localdomain bluetoothd[706]: Endpoint unregistered: sender=:1.89 path=/MediaEndpoint/A2DPSink
Feb 22 14:19:43 localhost.localdomain systemd[2103]: gnome-terminal-server.service: Unit entered failed state.
Feb 22 14:19:43 localhost.localdomain gdm-password][1285]: pam_unix(gdm-password:session): session closed for user stephan
Feb 22 14:19:43 localhost.localdomain systemd[2103]: gnome-terminal-server.service: Failed with result 'exit-code'.
Feb 22 14:19:43 localhost.localdomain gnome-settings-[1130]: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/xrandr_Apple_Computer_Inc_Color_LCD_stephan_1000
Feb 22 14:19:43 localhost.localdomain org.a11y.atspi.Registry[2795]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Feb 22 14:19:43 localhost.localdomain org.a11y.atspi.Registry[2795]:       after 161625 requests (161625 known processed) with 0 events remaining.
Feb 22 14:19:45 localhost.localdomain pkexec[15678]: pam_unix(polkit-1:session): session opened for user root by (uid=117)

Is there any fix for this?

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