The VM that I revived had not been run or updated since an early development version of 18.04, and it worked fine for playing the help videos. When I updated it, the yelp package did not update, but webkit did:
doug@desk-aa:~$ grep -i webkit /var/log/apt/term.log | grep over Unpacking libwebkit2gtk-4.0-37:amd64 (2.24.1-0ubuntu0.18.04.1) over (2.20.1-1) ... Unpacking gir1.2-webkit2-4.0:amd64 (2.24.1-0ubuntu0.18.04.1) over (2.20.1-1) ... After the update to current package versions, the help video issue was present. I looked at the changelog at https://launchpad.net/ubuntu/+source/webkit2gtk/+changelog but am not familiar with this stuff and didn't notice anything, but probably wouldn't have anyhow. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1804786 Title: Garbage occurred when Playing the video in the Ubuntu Desktop Guide To manage notifications about this bug go to: https://bugs.launchpad.net/yelp/+bug/1804786/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
