Velodyne HDL32E sends data, but velodyne_driver gets none

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Hey,

I have an HDL-32E velodyne sensor, but I can't get live data :-)

If I use a file with captured data, everything is just fine and there is no problem(actually the file contains data from the sensor I'm using) - but if I try to run the velodyne_driver with live data, I get a "Velodyne poll() timeout" warning.

I already checked the input.cc file and added a few outputs to the ROS_INFO_STREAM to check, if the driver is listening on the correct port - which it does.

My best guess is, that

poll(fds, 1, POLL_TIMEOUT);

always returns 0, despite the fact, that there is data on Port 2368

Is this some fuerte or ubuntu 12.04 issue?

Update:

Being root doesn't help, but I noticed that there is a bug in Ubuntu 12.04 - you can't use a workspace that is in /home/username