Thanks Timo for looking at this issue. Following is the output requested:
$ apt-cache policy xserver-xorg-core xserver-xorg-core: Installed: 2:1.18.4-0ubuntu0.7 Candidate: 2:1.18.4-0ubuntu0.7 Version table: *** 2:1.18.4-0ubuntu0.7 500 500 http://ca.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages 100 /var/lib/dpkg/status 2:1.18.3-1ubuntu2 500 500 http://ca.archive.ubuntu.com/ubuntu xenial/main amd64 Packages $ I'm not running 18.04 so I am unable to comment on whether the issue exists there. QUESTION: If I enable the testing PPA, will the changes be limited to this isue, or will it also affect other apps? This is my main development computer and I depend on a stable system for my purposes. Thanks, Curtis -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1780664 Title: Recent libgl-mesa graphics update prevents drop down list menu appearing in apps like firefox three line/bar menu icon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1780664/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp