El sistema se congela en Ubuntu 20.04 y el WiFi deja de funcionar

El sistema se congela en Ubuntu 20.04 y el WiFi deja de funcionar

De repente, hace unos días comencé a enfrentar un problema extraño que parece ocurrir sólo a veces. Si estoy transmitiendo video o incluso haciendo una llamada de audio en un navegador (Chrome o Firefox), mi sistema a veces se congela por completo y el último medio segundo aproximadamente del audio se reproduce en bucle. Tengo que hacer un apagado completo presionando prolongadamente el botón de encendido. La última vez que esto sucedió, encontré las entradas de syslog inmediatamente anteriores a esta:

May 12 15:15:22 Machine gnome-shell[12407]: [19904:20:0512/151522.107395:ERROR:webrtc_video_engine.cc(3350)] Absent receive stream; ignoring clearing encoded frame sink for ssrc 0
May 12 15:15:44 Machine gnome-shell[12407]: [19904:20:0512/151544.534097:ERROR:webrtc_video_engine.cc(3350)] Absent receive stream; ignoring clearing encoded frame sink for ssrc 0
May 12 15:16:08 Machine gnome-shell[2103]: ../clutter/clutter/clutter-actor.c:10558: The clutter_actor_set_allocation() function can only be called from within the implementation of the ClutterActor::allocate() virtual function.
May 12 15:16:29 Machine gnome-shell[2103]: ../clutter/clutter/clutter-actor.c:10558: The clutter_actor_set_allocation() function can only be called from within the implementation of the ClutterActor::allocate() virtual function.
May 12 15:17:01 Machine CRON[20644]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
May 12 15:17:34 Machine gnome-shell[12407]: [19904:20:0512/151734.483733:ERROR:webrtc_video_engine.cc(3350)] Absent receive stream; ignoring clearing encoded frame sink for ssrc 0
May 12 15:19:21 Machine gnome-shell[12407]: [19904:20:0512/151921.527291:ERROR:webrtc_video_engine.cc(3350)] Absent receive stream; ignoring clearing encoded frame sink for ssrc 0
May 12 15:20:08 Machine gnome-shell[12407]: [19904:20:0512/152008.433602:ERROR:webrtc_video_engine.cc(3350)] Absent receive stream; ignoring clearing encoded frame sink for ssrc 0
May 12 15:20:55 Machine gnome-shell[2103]: ../clutter/clutter/clutter-actor.c:10558: The clutter_actor_set_allocation() function can only be called from within the implementation of the ClutterActor::allocate() virtual function.
May 12 15:24:32 Machine kernel: [12112.697501] perf: interrupt took too long (3145 > 3126), lowering kernel.perf_event_max_sample_rate to 63500
May 12 15:26:18 Machine gnome-shell[2103]: message repeated 3 times: [ ../clutter/clutter/clutter-actor.c:10558: The clutter_actor_set_allocation() function can only be called from within the implementation of the ClutterActor::allocate() virtual function.]
May 12 15:30:01 Machine CRON[20950]: (root) CMD ([ -x /etc/init.d/anacron ] && if [ ! -d /run/systemd/system ]; then /usr/sbin/invoke-rc.d anacron start >/dev/null; fi)

No estoy seguro si está relacionado, pero mi sistema también se congela ocasionalmente cuando cierro la tapa. Y los problemas que he tenido son bastante similares a los deesta publicación. También tengo una GPU AMD Radeon dedicada además de la Intel integrada y una vez también tuve un problema con mi WiFi. Me enfrenté a los enormes problemas de registro del sistema antes de solucionarlos para garantizar que los archivos syslog nunca lleguen a ser tan grandes. Pero el único problema es que como mi sistema se congela por completo, no tengo oportunidad de ver si mi RAM y mi Swap se han llenado por completo o no. Y la solución dada no es aplicable a mí.

En caso de que sea relevante, recientemente me enfrentéesteProblema debido a la mala actualización del kernel 5.8.0-50, que resolví volviendo al kernel 5.8.0-43.

ACTUALIZACIÓN: Todavía no hay solución y el sistema se congela ocasionalmente. No puedo encontrar una ocurrencia común porque a veces ha sucedido incluso cuando no se estaba transmitiendo nada. Ha sucedido tres veces cuando se estaba ejecutando Firefox y una vez cuando se estaba ejecutando Chrome. Además, tengo KDE Plasma junto con GNOME y el problema claramente parece más frecuente en KDE Plasma. Y hay alguna conexión con mi WiFi tal vez porque ahora ha sucedido dos veces que después de hacer un reinicio completo después de la congelación, el WiFi no ha funcionado. Tengo un arranque dual y al arrancar en Windows y luego volver a Ubuntu se soluciona el WiFi.

ACTUALIZACIÓN: Decidí volver a un kernel anterior por una corazonada y estuvo bien durante uno o dos días, pero el problema no ha desaparecido. Todavía sucede y la ejecución de un video definitivamente tiene algo que ver con eso porque rara vez sucede a menos que se esté reproduciendo un video. No hay nada en el registro del sistema que indique un problema.

ACTUALIZACIÓN: Acabo de enfrentar múltiples fallas durante un corto período de tiempo. Poco antes de uno de ellos, el WiFi dejó de funcionar en mitad de una sesión (esta vez el sistema se reinició solo). Aquí están los registros:

May 28 13:13:04 Machine wpa_supplicant[1103]: wlp8s0: CTRL-EVENT-BEACON-LOSS
May 28 13:13:05 Machine kernel: [ 382.206213] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:05 Machine wpa_supplicant[1103]: wlp8s0: CTRL-EVENT-DISCONNECTED bssid=d8:32:14:ac:c3:51 reason=4 locally_generated=1
May 28 13:13:05 Machine NetworkManager[1080]: <warn> [1622187785.4714] sup-iface[0x5643f88e0120,wlp8s0]: connection disconnected (reason -4)
May 28 13:13:05 Machine kernel: [ 382.386690] ath: phy0: Chip reset failed
May 28 13:13:05 Machine kernel: [ 382.386692] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:05 Machine wpa_supplicant[1103]: wlp8s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
May 28 13:13:05 Machine NetworkManager[1080]: <info> [1622187785.5013] device (wlp8s0): supplicant interface state: completed -> disconnected
May 28 13:13:05 Machine NetworkManager[1080]: <info> [1622187785.5014] device (p2p-dev-wlp8s0): supplicant management interface state: completed -> disconnected
May 28 13:13:05 Machine kernel: [ 382.499354] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:05 Machine NetworkManager[1080]: <info> [1622187785.7671] device (wlp8s0): supplicant interface state: disconnected -> scanning
May 28 13:13:05 Machine NetworkManager[1080]: <info> [1622187785.7671] device (p2p-dev-wlp8s0): supplicant management interface state: disconnected -> scanning
May 28 13:13:05 Machine kernel: [ 382.682440] ath: phy0: Chip reset failed
May 28 13:13:05 Machine kernel: [ 382.682444] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:05 Machine kernel: [ 382.694287] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:05 Machine kernel: [ 382.875265] ath: phy0: Chip reset failed
May 28 13:13:05 Machine kernel: [ 382.875269] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:05 Machine kernel: [ 382.886876] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:06 Machine kernel: [ 383.067340] ath: phy0: Chip reset failed
May 28 13:13:06 Machine kernel: [ 383.067343] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:06 Machine kernel: [ 383.078891] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:06 Machine kernel: [ 383.259781] ath: phy0: Chip reset failed
May 28 13:13:06 Machine kernel: [ 383.259786] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:06 Machine kernel: [ 383.271428] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:06 Machine kernel: [ 383.452775] ath: phy0: Chip reset failed
May 28 13:13:06 Machine kernel: [ 383.452779] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:06 Machine kernel: [ 383.464488] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:06 Machine gnome-shell[2785]: [2778:2903:0528/131306.670523:ERROR:connection_factory_impl.cc(429 )] Failed to connect to MCS endpoint with error -106
May 28 13:13:06 Machine kernel: [ 383.645343] ath: phy0: Chip reset failed
May 28 13:13:06 Machine kernel: [ 383.645349] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:06 Machine kernel: [ 383.656982] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:06 Machine kernel: [ 383.837653] ath: phy0: Chip reset failed
May 28 13:13:06 Machine kernel: [ 383.837655] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:06 Machine kernel: [ 383.849256] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:07 Machine kernel: [ 384.029730] ath: phy0: Chip reset failed
May 28 13:13:07 Machine kernel: [ 384.029732] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:07 Machine kernel: [ 384.041264] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:07 Machine kernel: [ 384.221517] ath: phy0: Chip reset failed
May 28 13:13:07 Machine kernel: [ 384.221520] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:07 Machine kernel: [ 384.233066] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:07 Machine kernel: [ 384.413455] ath: phy0: Chip reset failed
May 28 13:13:07 Machine kernel: [ 384.413457] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:07 Machine kernel: [ 384.425027] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:07 Machine kernel: [ 384.606230] ath: phy0: Chip reset failed
May 28 13:13:07 Machine kernel: [ 384.606234] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:07 Machine kernel: [ 384.617913] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:07 Machine kernel: [ 384.827768] ath: phy0: Chip reset failed
May 28 13:13:07 Machine kernel: [ 384.827772] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:07 Machine kernel: [ 384.839466] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:08 Machine kernel: [ 385.021760] ath: phy0: Chip reset failed
May 28 13:13:08 Machine kernel: [ 385.021764] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:08 Machine kernel: [ 385.033343] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:08 Machine kernel: [ 385.214743] ath: phy0: Chip reset failed
May 28 13:13:08 Machine kernel: [ 385.214748] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:08 Machine kernel: [ 385.226332] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:08 Machine kernel: [ 385.408193] ath: phy0: Chip reset failed
May 28 13:13:08 Machine kernel: [ 385.408198] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:08 Machine kernel: [ 385.419929] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:08 Machine kernel: [ 385.602564] ath: phy0: Chip reset failed
May 28 13:13:08 Machine kernel: [ 385.602568] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:08 Machine kernel: [ 385.614334] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:08 Machine kernel: [ 385.796999] ath: phy0: Chip reset failed
May 28 13:13:08 Machine kernel: [ 385.797003] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:08 Machine kernel: [ 385.808712] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:09 Machine kernel: [ 385.989881] ath: phy0: Chip reset failed
May 28 13:13:09 Machine kernel: [ 385.989885] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:09 Machine kernel: [ 386.001417] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:09 Machine kernel: [ 386.181595] ath: phy0: Chip reset failed
May 28 13:13:09 Machine kernel: [ 386.181598] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:09 Machine kernel: [ 386.193159] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:09 Machine kernel: [ 386.373430] ath: phy0: Chip reset failed
May 28 13:13:09 Machine kernel: [ 386.373433] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:09 Machine kernel: [ 386.385040] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:09 Machine kernel: [ 386.566223] ath: phy0: Chip reset failed
May 28 13:13:09 Machine kernel: [ 386.566227] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:09 Machine kernel: [ 386.577874] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:09 Machine kernel: [ 386.759163] ath: phy0: Chip reset failed
May 28 13:13:09 Machine kernel: [ 386.759167] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:09 Machine kernel: [ 386.770887] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:10 Machine kernel: [ 386.953264] ath: phy0: Chip reset failed
May 28 13:13:10 Machine kernel: [ 386.953268] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:10 Machine kernel: [ 386.965018] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:10 Machine kernel: [ 387.146871] ath: phy0: Chip reset failed
May 28 13:13:10 Machine kernel: [ 387.146875] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:10 Machine kernel: [ 387.158537] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:10 Machine kernel: [ 387.366195] ath: phy0: Chip reset failed
May 28 13:13:10 Machine kernel: [ 387.366199] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:10 Machine kernel: [ 387.377851] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:10 Machine kernel: [ 387.560208] ath: phy0: Chip reset failed
May 28 13:13:10 Machine kernel: [ 387.560213] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:10 Machine kernel: [ 387.571827] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:10 Machine kernel: [ 387.753678] ath: phy0: Chip reset failed
May 28 13:13:10 Machine kernel: [ 387.753682] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:10 Machine kernel: [ 387.765389] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 387.947248] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 387.947252] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:11 Machine kernel: [ 387.958835] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 388.139488] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 388.139492] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:11 Machine kernel: [ 388.151087] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 388.331842] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 388.331847] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:11 Machine kernel: [ 388.343403] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 388.524071] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 388.524076] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:11 Machine kernel: [ 388.535694] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 388.716655] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 388.716660] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:11 Machine kernel: [ 388.728373] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:11 Machine kernel: [ 388.909853] ath: phy0: Chip reset failed
May 28 13:13:11 Machine kernel: [ 388.909857] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 388.921631] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:12 Machine kernel: [ 389.103311] ath: phy0: Chip reset failed
May 28 13:13:12 Machine kernel: [ 389.103315] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 389.114925] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:12 Machine kernel: [ 389.296130] ath: phy0: Chip reset failed
May 28 13:13:12 Machine kernel: [ 389.296134] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 389.307803] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:12 Machine kernel: [ 389.488445] ath: phy0: Chip reset failed
May 28 13:13:12 Machine kernel: [ 389.488449] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 389.500061] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:12 Machine kernel: [ 389.681076] ath: phy0: Chip reset failed
May 28 13:13:12 Machine kernel: [ 389.681080] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 389.692809] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:12 Machine kernel: [ 389.874830] ath: phy0: Chip reset failed
May 28 13:13:12 Machine kernel: [ 389.874844] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:12 Machine kernel: [ 389.886718] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:13 Machine kernel: [ 390.068907] ath: phy0: Chip reset failed
May 28 13:13:13 Machine kernel: [ 390.068912] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:13 Machine kernel: [ 390.080601] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
May 28 13:13:13 Machine kernel: [ 390.262758] ath: phy0: Chip reset failed
May 28 13:13:13 Machine kernel: [ 390.262762] ath: phy0: Unable to reset channel, reset status -22
May 28 13:13:13 Machine kernel: [ 390.274446] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff

Sospecho que el sobrecalentamiento del sistema tiene algo que ver con esto porque el último ocurrió justo cuando inicié sesión (la pantalla del escritorio ni siquiera se había cargado). Dejé que la computadora portátil estuviera apagada durante 20 minutos y luego la encendí y hasta ahora no ha fallado. Aquí hay otra entrada de registro antes del bloqueo en caso de que ayude a identificar la fuente.

May 28 13:20:17 Machine gnome-shell[3664]: libva error: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so init failed
May 28 13:20:18 Machine gnome-shell[3664]: [3704:3704:0528/132018.336942:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.

Y este de unos minutos después de eso:

May 28 13:27:04 Machine systemd[1]: Starting Manage, Install and Generate Color Profiles...
May 28 13:27:04 Machine gnome-session-binary[1482]: Entering running state
May 28 13:27:04 Machine gsd-media-keys[1852]: Failed to grab accelerator for keybinding settingslayback-repeat
May 28 13:27:04 Machine gsd-media-keys[1852]: Failed to grab accelerator for keybinding settings:rfkill
May 28 13:27:04 Machine gsd-media-keys[1852]: Failed to grab accelerator for keybinding settings:hibernate
May 28 13:27:04 Machine gsd-media-keys[1852]: Failed to grab accelerator for keybinding settingslayback-random
May 28 13:27:04 Machine dbus-daemon[1100]: [system] Successfully activated service 'org.freedesktop.ColorManager'
May 28 13:27:04 Machine systemd[1]: Started Manage, Install and Generate Color Profiles.
May 28 13:27:04 Machine xbrlapi.desktop[2027]: openConnection: connect: No such file or directory
May 28 13:27:04 Machine xbrlapi.desktop[2027]: cannot connect to braille devices daemon brltty at :0
May 28 13:27:05 Machine org.gnome.Shell.desktop[2034]: The XKEYBOARD keymap compiler (xkbcomp) reports:
May 28 13:27:05 Machine org.gnome.Shell.desktop[2034]: > Warning: Unsupported maximum keycode 569, clipping.
May 28 13:27:05 Machine org.gnome.Shell.desktop[2034]: > X11 cannot support keycodes above 255.
May 28 13:27:05 Machine org.gnome.Shell.desktop[2034]: > Internal error: Could not resolve keysym Invalid
May 28 13:27:05 Machine org.gnome.Shell.desktop[2034]: Errors from xkbcomp are not fatal to the X server
May 28 13:27:07 Machine gnome-shell[1542]: Warning: Failed to start gsd-xsettings
May 28 13:27:08 Machine org.gnome.Shell.desktop[1542]: libinput error: client bug: timer event5 keyboard: scheduled expiry is in the past (-74ms), your system is too slow
May 28 13:27:08 Machine gnome-shell[1542]: JS WARNING: [resource:///org/gnome/shell/ui/layout.js 24]: reference to undefined property "MetaWindowXwayland"

ACTUALIZACIÓN: A pesar de reinstalar Ubuntu 20.04 (con una actualización del kernel a 5.8.0-53), este problema persiste. Reinstalado ayer, el primer sistema se congeló hoy después de que abrí la tapa de la computadora portátil y abrí un par de pestañas en Chrome (el navegador ya estaba abierto). No sé qué diablos está pasando y por qué parece que nadie puede ayudar con esto.

ACTUALIZACIÓN: Hace un momento cerré la tapa de la computadora portátil (mi sistema no está configurado para suspenderse si eso sucede). Lo abrí y descubrí que se estaba reiniciando solo. Encontré las siguientes entradas de registro de esa época:

Jun  2 18:15:49 Machine thermald[849]: sensor id 4 : No temp sysfs for reading raw tempJun  2 18:23:11 Machine kernel: [   51.336014] Freezing user space processes ... (elapsed 0.110 seconds) done.
Jun  2 18:23:11 Machine kernel: [   51.446664] OOM killer disabled.
Jun  2 18:23:11 Machine kernel: [   51.446667] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Jun  2 18:23:11 Machine kernel: [   51.448174] printk: Suspending console(s) (use no_console_suspend to debug)
Jun  2 18:23:11 Machine kernel: [   51.599021] sd 0:0:0:0: [sda] Synchronizing SCSI cache
Jun  2 18:23:11 Machine kernel: [   51.685897] sd 0:0:0:0: [sda] Stopping disk
Jun  2 18:23:11 Machine kernel: [   51.930059] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
Jun  2 18:23:11 Machine kernel: [   51.959324] [drm] PCIE GART of 2048M enabled (table at 0x00000000001D6000).

Otro grupo de entradas son estas:

Jun  2 18:23:13 Machine thermald[849]: I/O warning : failed to load external entity "/etc/thermald/thermal-conf.xml"
Jun  2 18:23:13 Machine thermald[849]: error: could not parse file /etc/thermald/thermal-conf.xml
Jun  2 18:23:13 Machine thermald[849]: I/O warning : failed to load external entity "/etc/thermald/thermal-conf.xml"
Jun  2 18:23:13 Machine thermald[849]: error: could not parse file /etc/thermald/thermal-conf.xml
Jun  2 18:23:13 Machine thermald[849]: I/O warning : failed to load external entity "/etc/thermald/thermal-conf.xml"
Jun  2 18:23:13 Machine thermald[849]: error: could not parse file /etc/thermald/thermal-conf.xml

He buscado este error térmico pero no he podido encontrar ninguna solución clara que pueda implementar.

¿Existe alguna posibilidad de que tener instalados Gnome y KDE Plasma esté causando esto? ¿Especialmente porque configuré gdm3 como administrador de pantalla en lugar de sddm?

ACTUALIZACIÓN: TODAVÍA no hay solución para esto y el problema no ha desaparecido. He notado algunas veces que cuando tengo entre 5 y 6 pestañas de Chrome (que también solía tener antes) con sitios web posiblemente más pesados, mi memoria está llena en más del 90 % y el sistema se pone nervioso. Pero todavía no puedo estar seguro de si esta es la causa raíz (¿por qué syslog no menciona nada sobre esto?). Tampoco entiendo cómo mi instalación de Windows está bien con los 4 GB de RAM que tengo pero Ubuntu no. Aquí hay otra entrada de registro después del bloqueo más reciente:

Jul  4 14:25:48 Machine google-chrome.desktop[26653]: libva error: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so init failed
Jul  4 14:25:48 Machine google-chrome.desktop[26653]: [26685:26685:0704/142548.700456:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.
Jul  4 14:25:53 Machine google-chrome.desktop[26653]: [26646:26666:0704/142553.812893:ERROR:gcm_store_impl.cc(652)] LevelDB remove failed: NotFound:
Jul  4 14:25:53 Machine google-chrome.desktop[26653]: [26646:26669:0704/142553.813045:ERROR:mcs_client.cc(526)] GCM Update failed!
Jul  4 14:27:18 Machine PackageKit: daemon quit
Jul  4 14:27:18 Machine systemd[1]: packagekit.service: Succeeded.
Jul  4 14:27:56 Machine google-chrome.desktop[26653]: [26687:26690:0704/142756.708204:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:27:56 Machine google-chrome.desktop[26653]: [26687:26690:0704/142756.796603:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:27:56 Machine google-chrome.desktop[26653]: [26687:26690:0704/142756.852918:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:03 Machine google-chrome.desktop[26653]: [26687:26690:0704/142803.997212:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:04 Machine google-chrome.desktop[26653]: [26687:26690:0704/142804.080933:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:04 Machine google-chrome.desktop[26653]: [26687:26690:0704/142804.141079:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:14 Machine google-chrome.desktop[26653]: [26687:26690:0704/142814.603884:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:14 Machine google-chrome.desktop[26653]: [26687:26690:0704/142814.668010:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:14 Machine google-chrome.desktop[26653]: [26687:26690:0704/142814.780805:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:14 Machine google-chrome.desktop[26653]: [26687:26690:0704/142814.860787:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:17 Machine google-chrome.desktop[26653]: (transmission-gtk:27230): GLib-CRITICAL **: 14:28:17.210: g_file_test: assertion 'filename != NULL' failed
Jul  4 14:28:17 Machine dbus-daemon[852]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.212' (uid=1000 pid=27230 comm="transmission-gtk magnet:?xt=urn:btih:1EF2D24F1ECFF" label="unconfined")
Jul  4 14:28:17 Machine systemd[1]: Starting Hostname Service...
Jul  4 14:28:18 Machine dbus-daemon[852]: [system] Successfully activated service 'org.freedesktop.hostname1'
Jul  4 14:28:18 Machine systemd[1]: Started Hostname Service.
Jul  4 14:28:21 Machine google-chrome.desktop[26653]: [26687:26690:0704/142821.884753:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:21 Machine google-chrome.desktop[26653]: [26687:26690:0704/142821.964205:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:22 Machine google-chrome.desktop[26653]: [26687:26690:0704/142822.068246:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:22 Machine google-chrome.desktop[26653]: [26687:26690:0704/142822.140346:ERROR:ssl_client_socket_impl.cc(980)] handshake failed; returned -1, SSL error code 1, net_error -100
Jul  4 14:28:32 Machine google-chrome.desktop[26653]: [26685:26685:0704/142832.102447:ERROR:gl_utils.cc(314)] [.RendererMainThread-0x2c11bcb84700] GL_INVALID_FRAMEBUFFER_OPERATION: Draw framebuffer is incomplete
Jul  4 14:28:48 Machine systemd[1]: systemd-hostnamed.service: Succeeded.

Sinceramente, me parece extraño que nadie tenga una respuesta a esto a pesar de proporcionar tanta información.

Respuesta1

Si está utilizando tlpo slimbook-battery, desinstálelos.

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