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Whenever I lock the screen on my laptop it freezes after about 2 to 20 seconds. After this I cannot switch to another TTY and existing ssh connections freeze. Only a hard reboot helps.

Unfortunately my journalctl output is very boring and contains no clues of what is going on, see below. So I do not quite know how to debug this problem and any help of what to try would be appreciated.

One thing I did notice is that the screen locking works fine if I pass i915.modeset=0 as argument when booting. The only drawback of this method is that the screen stays black after unlocking, so not much gained besides being able to ssh into my computer and shut it down properly. So I suspect that the problem is related to the intel graphics driver and I posted a corresponding bug report, but that did not get much attention and I am as helpless as before.

Aug 27 10:36:57 localhost systemd[6304]: Reached target GNOME Media keys handling.
Aug 27 10:36:57 localhost systemd[6304]: Reached target GNOME Session.
Aug 27 10:36:57 localhost systemd[6304]: Reached target GNOME Wayland Session (session: gnome).
Aug 27 10:36:57 localhost systemd[6304]: Reached target Current graphical user session.
Aug 27 10:36:57 localhost systemd[6304]: Condition check resulted in GNOME Initial Setup being skipped.
Aug 27 10:36:57 localhost systemd[6304]: Condition check resulted in GNOME Welcome Tour being skipped.
Aug 27 10:36:57 localhost libcanberra-login-sound.desktop[7612]: Failed to play sound: File or data not found
Aug 27 10:36:57 localhost systemd[6304]: gnome-launched-libcanberra-login-sound.desktop-7612.scope: Succeeded.
Aug 27 10:36:57 localhost gsd-media-keys[7523]: Failed to grab accelerator for keybinding settings:rfkill
Aug 27 10:36:57 localhost gsd-media-keys[7523]: Failed to grab accelerator for keybinding settings:playback-repeat
Aug 27 10:36:57 localhost gsd-media-keys[7523]: Failed to grab accelerator for keybinding settings:playback-random
Aug 27 10:36:57 localhost gsd-media-keys[7523]: Failed to grab accelerator for keybinding settings:hibernate
Aug 27 10:36:57 localhost nextcloud[7608]: QSocketNotifier: Can only be used with threads started with QThread
Aug 27 10:36:57 localhost gnome-software[7594]: enabled plugins: desktop-categories, fwupd, os-release, packagekit, packagekit-local, packagekit-offline, packagekit-proxy, packagekit-refresh, packagekit-upgrade, packagekit-url-to-app, appstream, fedora-pkgdb-collections, desktop-menu-path, fedora-langpacks, flatpak, hardcoded-blacklist, hardcoded-popular, modalias, packagekit-refine, rewrite-resource, odrs, packagekit-history, provenance, repos, systemd-updates, generic-u>
Aug 27 10:36:57 localhost gnome-software[7594]: disabled plugins: dummy
Aug 27 10:36:57 localhost systemd[6304]: GNOME session X11 services is not active.
Aug 27 10:36:57 localhost systemd[6304]: Dependency failed for GNOME XSettings.
Aug 27 10:36:57 localhost systemd[6304]: gsd-xsettings.target: Job gsd-xsettings.target/start failed with result 'dependency'.
Aug 27 10:36:57 localhost systemd[6304]: Starting GNOME XSettings...
Aug 27 10:36:57 localhost ibus-daemon[7357]: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). See the documentation of g_child_watch_source_new() for possible causes.
Aug 27 10:36:57 localhost systemd[6304]: dbus-:1.2-org.freedesktop.portal.IBus@0.service: Succeeded.
Aug 27 10:36:57 localhost systemd[6304]: Started dbus-:1.2-org.freedesktop.portal.IBus@1.service.
Aug 27 10:36:57 localhost gnome-shell[7885]: The XKEYBOARD keymap compiler (xkbcomp) reports:
Aug 27 10:36:57 localhost gnome-shell[7885]: > Warning:          Unsupported maximum keycode 569, clipping.
Aug 27 10:36:57 localhost gnome-shell[7885]: >                   X11 cannot support keycodes above 255.
Aug 27 10:36:57 localhost gnome-shell[7885]: > Internal error:   Could not resolve keysym Invalid
Aug 27 10:36:57 localhost gnome-shell[7885]: > Error:            Key <LFSH> added to map for multiple modifiers
Aug 27 10:36:57 localhost gnome-shell[7885]: >                   Using Lock, ignoring Shift.
Aug 27 10:36:57 localhost gnome-shell[7885]: Errors from xkbcomp are not fatal to the X server
Aug 27 10:36:58 localhost systemd[6304]: Started GNOME XSettings.
Aug 27 10:36:58 localhost gnome-shell[7235]: GNOME Shell started at Thu Aug 27 2020 10:36:56 GMT+0900 (Japan Standard Time)
Aug 27 10:36:58 localhost gnome-shell[7235]: Registering session with GDM
Aug 27 10:36:58 localhost gsd-color[7506]: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/xrandr_Eizo_Nanao_Corporation_EV2785_25537038_gdm_42
Aug 27 10:36:58 localhost gsd-color[7506]: failed to connect to device: Failed to connect to missing device /org/freedesktop/ColorManager/devices/xrandr_BOE_gdm_42
Aug 27 10:36:58 localhost gnome-software[7594]: not handling error failed for action get-updates-historical: failed to build result for e234811a0b3925f31157d034477df3bc368a3254

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