rviz crash at boot-up using robot-upstart indigo

asked 2016-11-11 08:25:31 -0500

Hamz
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updated 2018-05-27 01:57:28 -0500

10937 ●203 ●339 ●330 http://www.linkedin.co...

Hi, I'm trying to use robot-upstart indigo to start my roslaunch script automatically at boot-up, my launch file contains rviz and I'm looking to show lidar pointcloud. When I reboot my laptop, nothing show up. I used this command to check whats the problem

$ sudo tail /var/log/upstart/velodyne.log -n 30

and I found this error

rviz: cannot connect to X server 
No handlers could be found for logger "roslaunch"
[rviz-12] process has died [pid 1354, exit code 1, cmd /opt/ros/indigo/lib/rviz/rviz -f /world __name:=rviz __log:=/tmp/0d6492c4-a815-11e6-997a-47731f04dcc5/rviz-12.log].

Does someone has an idea? Thanks

answered 2016-11-11 09:15:33 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

updated 2016-11-11 09:24:13 -0500

This could either be a permission problem, or there really is no X server running when robot_upstart starts your launch files.

If the first, see robot_upstart: could not open port /dev/ttyUSB0 as a related question. To clarify: robot_upstart runs your launch files under the same user as the one that installed them, but (from robot_upstart 0.2.0 documentation » The install script - permissions):

The roslaunch which executes does not have its user’s group memberships.

This could lead to the rviz instance not having any access rights to the X server.

The second (and looking at the error message, likely) option is that at the moment that your jobs are being started, the X server hasn't started yet, and as RViz needs one, it can't continue.

PS (and pedantic): technically RViz didn't crash: one of the prerequisites for it to work is to have a working X server. Since it can't connect to one, it can't initialise the application successfully, and just exits (most likely here).

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