[Trisquel-users] Re : XFCE problems anew (anold!)

[lcerf]

There is a literature of this bug if you search the site, e.g.,  
https://trisquel.info/forum/screen-tearing-and-high-cpu#comment-99720 and  
https://trisquel.info/en/issues/7610


A patch is behind the second link.  You apparently installed Xfce before  
updating the system.

[Trisquel-users] Re : XFCE problems anew (anold!)

[lcerf]

Try this command in a terminal:
$ sudo apt-get -f install