Re: GLX, (xserver-)xorg(-dev), and nvidia-driver under jessie(-backports)

[Jeffrey Mark Siskind <qobi@purdue.edu>]

Also please note that if instead of running

   xvfb-run \
     --auto-servernum \
     --server-num=20 \
     -s "-screen 0 1024x768x24 -ac +extension GLX +render -noreset" \
     align_epi_anat.py ...

I run just

     align_epi_anat.py ...

it works just fine. It seems that the issue is with xvfb-run.

The reason that I use xvfb-run is that align_epi_anat.py runs for a very long
time. It is a batch process. It is unclear why it needs GLX and an X
connection since it doesn't draw anything to the screen. If I start
align_epi_anat.py remotely from a machine where the X connection goes down or
one with an unreliable X connection, the process will run for a while and then
give an error.

I have a cluster of servers and workstations at work. I often work at home
(with a continual but sometimes unreliable X connection) or on a laptop (with
an X connection that goes down). I need to be able to submit jobs to my
cluster from home or my laptop.

    Jeff (http://engineering.purdue.edu/~qobi)