Thanks... got some help in the IRC channel. Changed a line on the remote server in /etc/bashrc from mesg y to tty -s && mesg y and after doing that when trying to connect the x2go client gave a more helpful message, namely that it required XQuartz to be installed. After installing that I was able to get things working. 

-J


On Thu, Oct 5, 2017 at 8:10 AM, Stefan Baur <X2Go-ML-1@baur-itcs.de> wrote:
Am 05.10.2017 um 16:34 schrieb Joshua Alexander:

> I'm trying to get x2go set up on CentOS 6. When I try to connect the
> client says "Connection failed. megs: ttyname failed. Invalid argument
> megs: ttyname failed: Invalid argument"... any ideas how to troubleshoot?

I'd check to make sure that your default shell is bash, and that you
don't have any commands in bashrc, profile, ... that require a TTY to be
present.

"mesg n" (note: it's "mesg", not "megs") seems like a likely candidate.

Please review the thread
<http://lists.x2go.org/pipermail/x2go-user/2015-January/002840.html> -
this one should give you an idea which files you need to check.

See e.g. these threads in the list archives, where people had similar
issues:
<http://lists.x2go.org/pipermail/x2go-user/2016-August/003881.html>
<http://lists.x2go.org/pipermail/x2go-dev/2015-December/010789.html>
as well as the corresponding bug report
<https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=976>

Kind Regards,
Stefan Baur

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