The workaround in http://ubuntuhandbook.org/index.php/2019/10/fix-wi-fi-hotspot-not-working-ubuntu-18-04/ works, but as a kluge. The option "Turn on WiFi hotspot" remains greyed out, but by connecting to a hidden network one can get the hotspot going.
The workaround in http:// ubuntuhandbook. org/index. php/2019/ 10/fix- wi-fi-hotspot- not-working- ubuntu- 18-04/ works, but as a kluge. The option "Turn on WiFi hotspot" remains greyed out, but by connecting to a hidden network one can get the hotspot going.