https://askubuntu.com/questions/322122/switching-from-server-to-desktop seems to cover it, including adding package sources. Can't see the point of tasksel here though as it's a single command line to install the desktop meta-package anyway. Presume afterwards you won't be accessing it headless. Can't help on the HDMI/AV question.
https://askubuntu.com/questions/322122/switching-from-server-to-desktop seems to cover it, including adding package sources. Can't see the point of tasksel here though as it's a single command line to install the desktop meta-package anyway. Presume afterwards you won't be accessing it headless. Can't help on the HDMI/AV question.