gnome-shell: Erro ao carregar miniatura

Eu estava verificando a saída do journalctl e vejo um grande número das seguintes entradas:

gnome-shell[5944]: Erro ao carregar miniatura: Erro: Largura do argumento: valor está fora do intervalo para gfloat

Parece ser alguns milhares em um curto período de tempo

$ uptime; sudo journalctl -b | grep thumbnail | wc -l
 10:37:23 up 19:36,  1 user,  load average: 0.89, 1.06, 1.21
2171
$

Meus pensamentos são que há uma miniatura em algum lugar que o gnome está tentando fazer referência que está corrompida de alguma forma - talvez a largura da miniatura esteja retornando um valor não flutuante?

Eu tentei deletar o seguinte diretório: ~/.cache/thumbnails Ele foi recriado quando eu abri o nautilus, naveguei para um diretório contendo imagens e mudei as visualizações para a visualização "show grid".

Isso não fez diferença.

Como posso identificar a qual miniatura isso se refere?

Editar 0:

$ ls -al ~/.local/share/gnome-shell/extensions
total 16
drwxrwxr-x 4 user user 4096 Mar 23 10:48 .
drwx------ 4 user user 4096 May 28 12:55 ..
drwxrwxr-x 8 user user 4096 Apr 13 10:21 [email protected]
drwxrwxr-x 4 user user 4096 Mar 11 13:19 [email protected]
$ 
$ ls -al /usr/share/gnome-shell/extensions
total 68
drwxr-xr-x 17 root root 4096 Nov 28  2019 .
drwxr-xr-x  7 root root 4096 Mar 17 15:16 ..
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 desktop-icons@csoriano
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 native-window-placement@gnome-shell-extensions.gcampax.github.com
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 screenshot-window-sizer@gnome-shell-extensions.gcampax.github.com
drwxr-xr-x  3 root root 4096 Nov 19  2020 [email protected]
drwxr-xr-x  3 root root 4096 Nov 19  2020 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
drwxr-xr-x  2 root root 4096 Jan 22 08:29 [email protected]
$

saída do syslog (eu incluí apenas o syslog atual): https://paste.ubuntu.com/p/BmRbpMVK8B/

Edit 1: eu removi as extensões gsconnect e system-monitor e reiniciei. Eu vi uma diminuição notável nas mensagens de erro hoje:

$ sudo grep gnome-shell /var/log/syslog | grep thumbnail
May 31 08:43:52 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 08:43:52 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 08:43:52 pc gnome-shell[5787]: message repeated 6 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
May 31 08:43:53 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 08:43:53 pc gnome-shell[5787]: message repeated 19 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
May 31 09:41:45 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 09:41:45 pc gnome-shell[5787]: message repeated 13 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
May 31 13:08:12 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 13:08:13 pc gnome-shell[5787]: message repeated 13 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
May 31 14:36:49 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 14:36:49 pc gnome-shell[5787]: message repeated 13 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
May 31 15:41:26 pc gnome-shell[5787]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
May 31 15:41:36 pc gnome-shell[5787]: message repeated 27 times: [ Error while loading thumbnail: Error: Argument width: value is out of range for gfloat]
$

Edição 2:

Agora só tenho as seguintes extensões habilitadas:

$ ls -al /usr/share/gnome-shell/extensions
total 20
drwxr-xr-x 5 root root 4096 May 31 16:03 .
drwxr-xr-x 7 root root 4096 Mar 17 15:16 ..
drwxr-xr-x 2 root root 4096 Jan 22 08:29 desktop-icons@csoriano
drwxr-xr-x 3 root root 4096 Nov 19  2020 [email protected]
drwxr-xr-x 3 root root 4096 Nov 19  2020 [email protected]
$

$ ls -al ~/.local/share/gnome-shell/extensions
total 8
drwxrwxr-x 2 user user 4096 May 28 17:17 .
drwx------ 4 user user 4096 Jun  1 09:10 ..
$

Eu reinstalei gnome-shell-extension-prefs e libdazzle-1.0-0 e reiniciei. A seguir estão os erros desde a inicialização:

$ uptime; sudo journalctl -b | grep thumbnail
 08:40:00 up 2 min,  1 user,  load average: 0.97, 0.66, 0.26
Jun 01 08:38:03 pc audit[2679]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-thumbnailer" pid=2679 comm="apparmor_parser"
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
Jun 01 08:38:35 pc gnome-shell[6136]: Error while loading thumbnail: Error: Argument width: value is out of range for gfloat
$

Edição 3:

Captura de tela do canto superior direito da área de trabalho:

Edição 4:

Então, porque eu removi todas as extensões além das principais e ainda estou recebendo erros de miniatura ao fazer login (ou seja, nem mesmo tendo feito nada), excluí todos os arquivos da minha área de trabalho (que incluíam algumas imagens), excluí ~/.local /thumbnails novamente e reiniciado

Não houve erros:

$ uptime; sudo journalctl -b | grep thumbnail
 09:50:25 up 35 min,  1 user,  load average: 0.78, 0.64, 0.51
Jun 01 09:15:06 cn-lat7490 audit[2668]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-thumbnailer" pid=2668 comm="apparmor_parser"
$

Mas também não há diretório de miniaturas:

$ ls -al ~/.cache/thumbnails/
ls: cannot access '/home/user/.cache/thumbnails/': No such file or directory
$

Então eu naveguei para o meu diretório de imagens no Nautilus para gerar algumas miniaturas e ainda não tenho erros

$ uptime; sudo journalctl -b | grep thumbnail; ls -al ~/.cache/thumbnails
 09:54:04 up 39 min,  1 user,  load average: 0.49, 0.57, 0.51
Jun 01 09:15:06 pc audit[2668]: AVC apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-thumbnailer" pid=2668 comm="apparmor_parser"
total 12
drwx------  3 user user 4096 Jun  1 09:52 .
drwx------ 32 user user 4096 Jun  1 09:52 ..
drwx------  2 user user 4096 Jun  1 09:52 normal
$