我的电脑（运行 Ubuntu 18.04 的 Acer Aspire）在拔掉电源后会不断随机崩溃。问题似乎只发生在计算机正在积极运行进程时（我在拔掉电源后将系统日志打开了几个小时，然后在更积极地使用它 15 分钟后，它关闭了。CPU、nvidia gpu 和 ssd 驱动器的温度似乎处于正常状态。使用智能数据和自检检查 SSD 正常。
以下是崩溃前后的系统日志：
c 14 23:01:34 enneadecagon systemd[1639]: Started GNOME Terminal Server.
Dec 14 23:01:35 enneadecagon nautilus[2238]: gtk_widget_get_mapped: assertion 'GTK_IS_WIDGET (widget)' failed
Dec 14 23:01:35 enneadecagon nautilus[2238]: gdk_window_is_visible: assertion 'GDK_IS_WINDOW (window)' failed
Dec 14 23:01:35 enneadecagon nautilus[2238]: gtk_widget_set_opacity: assertion 'GTK_IS_WIDGET (widget)' failed
Dec 14 23:01:35 enneadecagon nautilus[2238]: gtk_widget_queue_draw: assertion 'GTK_IS_WIDGET (widget)' failed
Dec 14 23:01:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating via systemd: service name='org.gnome.zeitgeist.Engine' unit='zeitgeist.service' requested by ':1.78' (uid=1000 pid=2270 comm="zeitgeist-datahub " label="unconfined")
Dec 14 23:01:37 enneadecagon systemd[1639]: Starting Zeitgeist activity log service...
Dec 14 23:01:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating via systemd: service name='org.gnome.zeitgeist.SimpleIndexer' unit='zeitgeist-fts.service' requested by ':1.79' (uid=1000 pid=2279 comm="/usr/bin/zeitgeist-daemon " label="unconfined")
Dec 14 23:01:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.zeitgeist.Engine'
Dec 14 23:01:37 enneadecagon systemd[1639]: Started Zeitgeist activity log service.
Dec 14 23:01:37 enneadecagon systemd[1639]: Starting Zeitgeist full-text search indexer...
Dec 14 23:01:37 enneadecagon zeitgeist-daemon[2279]: #033[31m[04:01:37.814187 WARNING]#033[0m zeitgeist-daemon.vala:127: Unable to parse version info!
Dec 14 23:01:37 enneadecagon zeitgeist-daemon[2279]: #033[31m[04:01:37.814841 WARNING]#033[0m zeitgeist-daemon.vala:127: Unable to parse version info!
Dec 14 23:01:37 enneadecagon zeitgeist-daemon[2279]: #033[31m[04:01:37.824696 WARNING]#033[0m zeitgeist-daemon.vala:127: Unable to parse version info!
Dec 14 23:01:37 enneadecagon zeitgeist-datah[2287]: zeitgeist-datahub.vala:227: Unable to get name "org.gnome.zeitgeist.datahub" on the bus!
Dec 14 23:01:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.zeitgeist.SimpleIndexer'
Dec 14 23:01:37 enneadecagon systemd[1639]: Started Zeitgeist full-text search indexer.
Dec 14 23:01:41 enneadecagon systemd-resolved[759]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Dec 14 23:01:41 enneadecagon systemd-resolved[759]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Dec 14 23:01:57 enneadecagon systemd[1]: Starting Stop ureadahead data collection...
Dec 14 23:01:57 enneadecagon systemd[1]: Started Stop ureadahead data collection.
Dec 14 23:01:58 enneadecagon systemd-resolved[759]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Dec 14 23:01:58 enneadecagon systemd-resolved[759]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Dec 14 23:01:59 enneadecagon rtkit-daemon[1276]: Supervising 1 threads of 1 processes of 1 users.
Dec 14 23:01:59 enneadecagon rtkit-daemon[1276]: message repeated 5 times: [ Supervising 1 threads of 1 processes of 1 users.]
Dec 14 23:01:59 enneadecagon rtkit-daemon[1276]: Successfully made thread 2865 of process 2777 (n/a) owned by '1000' RT at priority 10.
Dec 14 23:01:59 enneadecagon rtkit-daemon[1276]: Supervising 2 threads of 2 processes of 1 users.
Dec 14 23:02:01 enneadecagon rtkit-daemon[1276]: message repeated 6 times: [ Supervising 2 threads of 2 processes of 1 users.]
Dec 14 23:02:08 enneadecagon systemd-resolved[759]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Dec 14 23:02:08 enneadecagon systemd-resolved[759]: message repeated 3 times: [ Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.]
Dec 14 23:02:18 enneadecagon rtkit-daemon[1276]: Supervising 2 threads of 2 processes of 1 users.
Dec 14 23:02:18 enneadecagon rtkit-daemon[1276]: Supervising 2 threads of 2 processes of 1 users.
Dec 14 23:02:19 enneadecagon gnome-software[2988]: plugin appstream took 1.3 seconds to do setup
Dec 14 23:02:19 enneadecagon gnome-software[2988]: enabled plugins: shell-extensions, desktop-categories, packagekit, packagekit-refine-repos, packagekit-upgrade, systemd-updates, packagekit-refresh, os-release, packagekit-offline, packagekit-local, fwupd, packagekit-proxy, packagekit-url-to-app, ubuntuone, appstream, odrs, steam, hardcoded-featured, packagekit-refine, hardcoded-popular, generic-updates, desktop-menu-path, rewrite-resource, hardcoded-blacklist, modalias, packagekit-history, provenance, provenance-license, icons, key-colors, key-colors-metadata
Dec 14 23:02:19 enneadecagon gnome-software[2988]: disabled plugins: dummy, repos, dpkg, epiphany, snap
Dec 14 23:02:19 enneadecagon dbus-daemon[931]: [system] Activating via systemd: service name='org.freedesktop.fwupd' unit='fwupd.service' requested by ':1.115' (uid=1000 pid=2988 comm="/usr/bin/gnome-software --gapplication-service " label="unconfined")
Dec 14 23:02:19 enneadecagon systemd[1]: Starting Firmware update daemon...
Dec 14 23:02:19 enneadecagon fwupd[3042]: disabling plugin because: failed to startup dell: failed to initialize libsmbios library
Dec 14 23:02:19 enneadecagon fwupd[3042]: disabling plugin because: failed to coldplug amt: ME refused connection
Dec 14 23:02:19 enneadecagon fwupd[3042]: disabling plugin because: failed to coldplug synapticsmst: MST firmware updating not supported by OEM
Dec 14 23:02:19 enneadecagon fwupd[3042]: using plugins: upower, csr, nitrokey, udev, thunderbolt, ebitdo, steelseries, unifying, colorhug, wacomhid, dfu, altos, thunderbolt_power, uefi
Dec 14 23:02:19 enneadecagon fwupd[3042]: Daemon ready for requests
Dec 14 23:02:20 enneadecagon PackageKit: get-updates transaction /8658_ecedbcae from uid 1000 finished with success after 835ms
Dec 14 23:02:20 enneadecagon dbus-daemon[931]: [system] Successfully activated service 'org.freedesktop.fwupd'
Dec 14 23:02:20 enneadecagon systemd[1]: Started Firmware update daemon.
Dec 14 23:02:20 enneadecagon gnome-software[2988]: hiding category productivity featured applications: found only 0 to show, need at least 9
Dec 14 23:02:20 enneadecagon gnome-software[2988]: Only 0 apps for recent list, hiding
Dec 14 23:02:20 enneadecagon gnome-shell[1895]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.89/org/ayatana/NotificationItem/software_update_available
Dec 14 23:02:20 enneadecagon gnome-shell[1895]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.89/org/ayatana/NotificationItem/livepatch
Dec 14 23:02:21 enneadecagon PackageKit: resolve transaction /8659_eeacaabe from uid 1000 finished with success after 677ms
Dec 14 23:02:21 enneadecagon PackageKit: resolve transaction /8660_bccebcde from uid 1000 finished with success after 410ms
Dec 14 23:02:21 enneadecagon gnome-software[2988]: hiding category graphics featured applications: found only 1 to show, need at least 9
Dec 14 23:02:21 enneadecagon PackageKit: resolve transaction /8661_becdeaae from uid 1000 finished with success after 420ms
Dec 14 23:02:21 enneadecagon gnome-software[2988]: Only 8 apps for popular list, hiding
Dec 14 23:02:22 enneadecagon PackageKit: resolve transaction /8662_daacdcae from uid 1000 finished with success after 414ms
Dec 14 23:02:22 enneadecagon PackageKit: search-file transaction /8663_ddaccada from uid 1000 finished with success after 469ms
Dec 14 23:02:23 enneadecagon PackageKit: search-file transaction /8664_cbaeeebc from uid 1000 finished with success after 429ms
Dec 14 23:02:23 enneadecagon PackageKit: search-file transaction /8665_dcaaaeaa from uid 1000 finished with success after 440ms
Dec 14 23:02:24 enneadecagon PackageKit: search-file transaction /8666_acabcccd from uid 1000 finished with success after 458ms
Dec 14 23:02:24 enneadecagon PackageKit: search-file transaction /8667_eabacedb from uid 1000 finished with success after 448ms
Dec 14 23:02:25 enneadecagon PackageKit: search-file transaction /8668_abebbcbe from uid 1000 finished with success after 460ms
Dec 14 23:02:25 enneadecagon PackageKit: search-file transaction /8669_bbadccda from uid 1000 finished with success after 454ms
Dec 14 23:02:25 enneadecagon PackageKit: search-file transaction /8670_dacebcad from uid 1000 finished with success after 459ms
Dec 14 23:02:26 enneadecagon PackageKit: search-file transaction /8671_dedccaac from uid 1000 finished with success after 448ms
Dec 14 23:02:26 enneadecagon PackageKit: search-file transaction /8672_debdbaeb from uid 1000 finished with success after 429ms
Dec 14 23:02:27 enneadecagon PackageKit: search-file transaction /8673_aaccacac from uid 1000 finished with success after 449ms
Dec 14 23:02:27 enneadecagon PackageKit: search-file transaction /8674_dacccbbd from uid 1000 finished with success after 472ms
Dec 14 23:02:28 enneadecagon PackageKit: search-file transaction /8675_bceaddcc from uid 1000 finished with success after 534ms
Dec 14 23:02:28 enneadecagon PackageKit: search-file transaction /8676_caeeaeec from uid 1000 finished with success after 460ms
Dec 14 23:02:28 enneadecagon gnome-software[2988]: Failed to find one package for arduino-arduinoide.desktop, /usr/share/applications/arduino-arduinoide.desktop, [0]
Dec 14 23:02:29 enneadecagon PackageKit: get-details transaction /8677_deeedbca from uid 1000 finished with success after 405ms
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.25' (uid=1000 pid=1895 comm="/usr/bin/gnome-shell " label="unconfined")
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating service name='org.gnome.Nautilus' requested by ':1.25' (uid=1000 pid=1895 comm="/usr/bin/gnome-shell " label="unconfined")
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating service name='org.gnome.Calculator.SearchProvider' requested by ':1.25' (uid=1000 pid=1895 comm="/usr/bin/gnome-shell " label="unconfined")
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating service name='org.gnome.Calendar' requested by ':1.25' (uid=1000 pid=1895 comm="/usr/bin/gnome-shell " label="unconfined")
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Activating service name='org.gnome.seahorse.Application' requested by ':1.25' (uid=1000 pid=1895 comm="/usr/bin/gnome-shell " label="unconfined")
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.Calculator.SearchProvider'
Dec 14 23:02:37 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.ControlCenter.SearchProvider'
Dec 14 23:02:38 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.Nautilus'
Dec 14 23:02:38 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.Calendar'
Dec 14 23:02:38 enneadecagon dbus-daemon[1702]: [session uid=1000 pid=1702] Successfully activated service 'org.gnome.seahorse.Application'
Dec 14 23:02:38 enneadecagon nautilus[3142]: g_key_file_load_from_file: assertion 'file != NULL' failed
Dec 14 23:02:38 enneadecagon nautilus[3142]: Could not establish a connection to Tracker: Failed to load SPARQL backend: Key file does not have group “DomainOntology”
Dec 14 23:02:38 enneadecagon nautilus[3142]: g_queue_pop_head: assertion 'queue != NULL' failed
非常感谢您能给我的任何帮助。我完全不知道该怎么办。