Hi @gordon ,
For a while I have a script running that logs and restarts mate-panel if wnck-applet crashes (idem for screensaver).
wo 15 sep 2021 11:20:22 CEST
2012291 ? 00:00:19 wnck-applet
3682627 ? 00:00:00 mate-screensavescreensaver died at 2021-09-12 19:49
screensaver died at 2021-09-14 10:54
screensaver died at 2021-09-15 06:36
wnck-applet died at 2021-09-10 18:05
wnck-applet died at 2021-09-11 02:23
wnck-applet died at 2021-09-11 02:26
wnck-applet died at 2021-09-11 15:25
wnck-applet died at 2021-09-11 16:00
wnck-applet died at 2021-09-11 21:57
wnck-applet died at 2021-09-12 19:49/var/crash/_usr_bin_mate-screensaver.1000.crash
/var/crash/_usr_lib_mate-panel_wnck-applet.1000.crash
When I applied your tip of 'Hide thumbnails on hover', wnck-applet stopped crashing (note the date on top and the last "wnck-applet died" entry)
so it really worked, but I wonder why.
I persume the wnck-applet is a child of mate-panel and a kind of host for panel-applets (if it crashes, all applets disappear except mate-panel).
I persume that 'Hide thumbnails on hover' does work at this moment to prevent wnck-applet from crashing but that also implies that every applet (now or in the future) could potentially crash wnck-applet in the same way.
Is this correct or am I missing something ?