[X2Go-Dev] Bug#1230: x2go fails unhelpfully when a session fails to start

Package: x2goserver Version: 4.0.1.20

When a username is rejected by the 'valid username' test (see separate bug report<https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1229>), the session doesn't fail, but simply seems to hang, giving no feedback about the problem, nor, as far as I can see, reporting anything in the logs.

To reproduce, attempt to log in using a username such as '123x'. The session doesn't complete the setup, leaving the user at a blank screen.

Suggestion: a user-visible error message should be produced, and an informative message sent to the system log.

Best wishes,

Norman

-- Norman Gray : https://nxg.me.uk