On Mon, 22 Jul 2019 18:16:18 +0100, Chris Green wrote: >How can I diagnose/fix this problem? I don't know, I've seen this for Xubuntu and Ubuntu Studio live DVDs of different releases. IIRC a workaround is to push Strg+Alt+F2 and IIRC without logging in, just directly go back by Strg+Alt+F7 and you're done.