I finally got some time to test again, and now all works without problems. But, out of curiosity, I've been trying to make it fail to find the cause of the problem. After some tests, I discovered it always fails when you are logged into the server with ssh -X . I was always logged in when testing, so this is why I was the only who never got it working. I don't know why it happens, but if I login without -X or replace 'localhost:10.0' by 'localhost:11.0', it works.
-- Local devices don't work because an X11 authentication problem https://bugs.launchpad.net/bugs/160420 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs