これはかなり奇妙なバグです。PC の電源を入れて Chrome を開くと、動画は再生されますが、しばらくするとそれ以上再生できなくなります。我慢していましたが、このバグが発生すると、PC を再起動したり電源を切ったりすることができなくなります。つまり、ターミナルでshutdown -h nowまたはshutdown -r nowと入力するとreboot、点滅するカーソルが表示された黒い画面が表示され、それで終わりです。確かに、問題は奇妙ですが、解決にご協力いただければ幸いです。ログは次のとおりです。
13:24:24 dbus-daemon: [session uid=1000 pid=1017] Successfully activated service 'org.gnome.Logs'
13:24:23 gnome-calendar: source_credentials_required_cb: Failed to authenticate 'Праздники России': Failed to obtain an access token for “Праздники России”: Не удалось найти учётные данные в связке ключей
13:24:22 dbus-daemon: [session uid=1000 pid=1017] Successfully activated service 'org.gnome.Calendar'
13:24:22 systemd: Started Time & Date Service.
13:24:22 dbus-daemon: [system] Successfully activated service 'org.freedesktop.timedate1'
13:24:22 systemd: Starting Time & Date Service...
13:24:22 dbus-daemon: [system] Activating via systemd: service name='org.freedesktop.timedate1' unit='dbus-org.freedesktop.timedate1.service' requested by ':1.112' (uid=1000 pid=12578 comm="/usr/bin/gnome-calendar --gapplication-service " label="unconfined")
13:24:22 systemd: Started GNOME Terminal Server.
13:24:22 dbus-daemon: [session uid=1000 pid=1017] Successfully activated service 'org.gnome.Terminal'
13:24:21 systemd: Starting GNOME Terminal Server...
13:24:21 dbus-daemon: [session uid=1000 pid=1017] Activating via systemd: service name='org.gnome.Terminal' unit='gnome-terminal-server.service' requested by ':1.44' (uid=1000 pid=1433 comm="/usr/bin/gnome-shell " label="unconfined")
13:24:21 gnome-shell: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10).
13:23:42 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
13:23:32 gnome-shell: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10).
13:23:29 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
13:23:07 systemd: Finished Message of the Day.
13:20:55 gnome-shell: pushModal: invocation of begin_modal failed
13:18:16 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
13:17:18 gnome-shell: pushModal: invocation of begin_modal failed
13:17:01 cron: pam_unix(cron:session): session closed for user root
13:17:01 sh: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
13:17:01 cron: pam_unix(cron:session): session opened for user root by (uid=0)
13:17:00 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
13:10:00 gnome-shell: pushModal: invocation of begin_modal failed
13:07:23 Telegram: OpenType support missing for "davazirmedium", script 18
13:07:07 gnome-shell: unable to update icon for discord1
13:04:46 wpa_supplicant: wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-60 noise=9999 txrate=585000
13:03:21 gnome-shell: pushModal: invocation of begin_modal failed
13:02:57 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
13:02:48 gnome-shell: pushModal: invocation of begin_modal failed
13:02:21 Discord: [2022-01-07 13:02:21.160] [5992] (audio_device_generic.cc:32): BuiltInAECIsAvailable: Not supported on this platform
13:02:18 gnome-shell: pushModal: invocation of begin_modal failed
13:01:17 wpa_supplicant: wlp4s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-63 noise=9999 txrate=26000
13:01:16 kernel: ieee80211 phy0: Hardware restart was requested
13:01:16 kernel: iwlwifi 0000:04:00.0: WRT: Collecting data: ini trigger 4 fired.
13:01:13 gnome-shell: pushModal: invocation of begin_modal failed
12:54:28 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment
12:51:10 systemd: NetworkManager-dispatcher.service: Succeeded.
12:51:01 whoopsie: [12:51:01] online
12:51:00 NetworkManager: <info> [1641549060.2430] manager: NetworkManager state is now CONNECTED_GLOBAL
12:50:59 systemd: Started Network Manager Script Dispatcher Service.
12:50:59 dbus-daemon: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
12:50:59 whoopsie: [12:50:59] offline
12:50:59 dbus-daemon: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.16' (uid=0 pid=837 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
12:50:59 systemd: Starting Network Manager Script Dispatcher Service...
12:50:59 NetworkManager: <info> [1641549059.9649] manager: NetworkManager state is now CONNECTED_SITE
12:50:43 goa-daemon: /org/gnome/OnlineAccounts/Accounts/account_1640857403_0: Setting AttentionNeeded to FALSE because EnsureCredentials() succeded
12:50:43 gnome-keyring-d: asked to register item /org/freedesktop/secrets/collection/_d0_a1_d0_b2_d1_8f_d0_b7_d0_ba_d0_b0_5f_d0_ba_d0_bb_d1_8e_d1_87_d0_b5_d0_b9_5f_d0_bf_d0_be_5f_d1_83_d0_bc_d0_be_d0_bb_d1_87_d0_b0_d0_bd_d0_b8_d1_8e/1, but it's already registered
12:50:42 gnome-shell: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10).
12:50:02 Telegram: qt.gui.imageio.jpeg: Corrupt JPEG data: premature end of data segment