In reply to comment #22:
$ apt-cache policy mutter mutter: Installed: 3.32.0-1ubuntu1vv1 Candidate: 3.32.0-1ubuntu1vv1 Version table: *** 3.32.0-1ubuntu1vv1 500 500 http://ppa.launchpad.net/vanvugt/lp1821933/ubuntu disco/main amd64 Packages 100 /var/lib/dpkg/status 3.32.0-1ubuntu1 500 500 http://gb.archive.ubuntu.com/ubuntu disco/main amd64 Packages
Made no difference I'm afraid.
In reply to comment #22:
$ apt-cache policy mutter ppa.launchpad. net/vanvugt/ lp1821933/ ubuntu disco/main amd64 Packages dpkg/status 32.0-1ubuntu1 500 gb.archive. ubuntu. com/ubuntu disco/main amd64 Packages
mutter:
Installed: 3.32.0-1ubuntu1vv1
Candidate: 3.32.0-1ubuntu1vv1
Version table:
*** 3.32.0-1ubuntu1vv1 500
500 http://
100 /var/lib/
3.
500 http://
Made no difference I'm afraid.