Thanks Daniel. ppa=purged and started a new bug here:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1906601
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https://bugs.launchpad.net/bugs/1906525
Title:
Display + HDMI not
Thanks for the bug report. Unfortunately you seem to have packages from
the "oibaf" PPA installed, which are known to cause a lot of graphics
problems.
Please remove that PPA from your system using 'ppa-purge' and then if
the problems persist open a new bug. Alternatively, just reinstall
Ubuntu
