[xubuntu-users] Hundreds (thousands maybe) of nm-applet error messages in .xsession-errors

[Ralf Mardorf]

On Thu, 2019-12-05 at 21:22 +0000, Chris Green wrote:
> I have recently upgraded from xubuntu 19.04 to 19.10 on my laptop.
> 
> The .xsession-errors file is getting rather large very quickly, it has
> grown to 8Mb in not much over 24 hours.  A large proportion of the
> errors in .xsession-errors are from nm-applet:-
> 
>     (nm-applet:1573): Gtk-CRITICAL **: 20:15:43.847: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed
>     (nm-applet:1573): Gtk-CRITICAL **: 20:15:43.847: gtk_widget_destroy: assertion 'GTK_IS_WIDGET (widget)' failed
>     (nm-applet:1573): Gtk-WARNING **: 20:15:43.858: Can't set a parent on widget which has a parent
> 
> The same three errors repeat, a lot!  There are also similar Gtk error
> messages from other programs but nm-applet is by far the worst culprit.
> 
> I know these aren't that serious, the system still functions OK, but
> at the very least they tend to mask more serious issues by making
> .xsession-errors so large.
> 
> Is this a bug that should be reported and/or is there a work-around of
> any sort?

It's a rhetorical question, right?

[rocketmouse at archlinux ~]$ cat .xsession-errors | wc -l
5

One of those four lines is caused by an obsolete workaround, the other
four lines are related to either bad maintained packages or issues
caused by upstream.

The total size are 248 byte.

[rocketmouse at archlinux ~]$ ls -hl .xsession-errors 
-rw------- 1 rocketmouse rocketmouse 248 Dec  2 17:42 .xsession-errors

To put it in a nutshell, those 248 bytes are already way to much,
however, getting 8 MB mostly related to GTK warnings is inacceptable.
It's not your fault. Consider to report it. You could temporarily work
around it by simply deleting  ~/.xsession-errors*  , after starting a
user session. During this session no ~/.xsession-errors log file will be
generated again.