On 04/14/2018 03:35 PM, Ulrich Sibiller wrote:
Info: Agent running with pid '4112'. Session: Starting session at 'Tue Apr
10 01:15:16 2018'. Error: Aborting session with 'Unable to open display
'nx/nx,options=/tmp/.x2go-fangq/C-fangq-...._stDXFCE_dp24/options:51''.
Session: Aborting session at 'Tue Apr 10 01:15:16 2018'. Session: Session
aborted at 'Tue Apr 10 01:15:16 2018'.

I see you are using a rather unusual date format. So I am wondering if
the might be related to the locale you are using. Please post the
output of the "locale" command.

hi Uli

the locales on both the "working" and "nonworking" machines
are en_US.UTF-8, the full output is

fangq@neza:~$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=en_US.UTF-8
LC_TIME=en_US.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=en_US.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=en_US.UTF-8
LC_NAME=en_US.UTF-8
LC_ADDRESS=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_ALL=


I also dumped the environment variables for the working (env > good.txt)
and the non-working (env > bad.txt) and the difference is listed below.
the /space/hoyi/1/users/shared/mesa-10.1.3 in LD_LIBRARY_PATH enables
to run opengl programs in the remote session, I added it to the
non-working machine LD_LIBRARY_PATH, but still get the same
error message.


fangq@taote:~$ diff good.txt bad.txt
2c2
< XDG_SESSION_ID=4
---
> XDG_SESSION_ID=11
8c8
< XDG_SESSION_COOKIE=1330194a2eadd749c3beabd157520f0a-1523747416.936381-1031780882
---
> XDG_SESSION_COOKIE=1330194a2eadd749c3beabd157520f0a-1523747426.95076-1702226505
10c10
< SSH_CLIENT=173.xx.xx.xx 38437 22
---
> SSH_CLIENT=129.xx.xx.xx 38556 22
13c13
< SSH_TTY=/dev/pts/26
---
> SSH_TTY=/dev/pts/27
15c15
< LD_LIBRARY_PATH=/usr/local/cuda/lib64:/usr/lib:/pub/lib:/pub/cuda-7.5/lib64:/space/hoyi/1/users/shared/mesa-10.1.3:/usr/lib/x86_64-linux-gnu/mesa:/usr/lib/nvidia-375:/usr/lib/nvidia-387:/usr/lib/nvidia-384
---
> LD_LIBRARY_PATH=/usr/local/cuda/lib64:/usr/lib:/pub/lib:/pub/cuda-7.5/lib64:/usr/lib/nvidia-375:/usr/lib/nvidia-387:/usr/lib/nvidia-384:/usr/lib/x86_64-linux-gnu
31c31
< SSH_CONNECTION=173.xx.xx.xx 38437 129.xx.xx.xx 22
---
> SSH_CONNECTION=129.xx.xx.xx 38556 129.xx.xx.xx 22

Qianqian


Uli