Teamviewer connects but Remote control shows Awaiting authentication
I am having a strange issue with logging in to one of my computers.
I have two PC's both running Xubuntu 16.04.2 (LTS version) and I have Teamviewer 12 installed on both machine's.
On only ONE of them, I have the problem that I can not completely log in. What happens now, is that when I log in (from any other machine, be it a Linux, Windows or MacOS computer) I see the remote desktop, but the log in screen is unavailable. It is covered by a Teamviewer Remote control window. The status "light" shows yellow and the text shows "Awaiting authentication". That is all. I can click on that window to no avail, but cannot get any further.
- There IS a connection (I can see the login window/desktop.)
- The system runs just fine (I can login through ssh from the other PC if I need to)
- There is no real authentication problem, because right after a fresh install, it will work just fine for a couple of times.
I have already done a complete reinstall of the OS, so I guess that should not be a problem either. The other PC, also running the same OS and version, does not have the problem.
Any idea's what could be the problem? It is not a networking issue, as far as I can tell, since I do connect. It is just that after the connection, I am blocked or locked at the login screen.
Thanks in advance for any insights!