The messages are probably related to x2gocdmanager which is part of the x2go family. X2go isn't included in any Ubuntu repository. A snippet from /usr/sbin/x2gocdmanager:
57 while(sleep 4) <snip> 75 sysopen(CDROM,@drives[$i],O_RDONLY|O_NONBLOCK); <snip> 87 system("echo 0 > /proc/sys/dev/cdrom/lock"); [1] http://www.x2go.org/ status: invalid ** Changed in: ubuntu Status: Incomplete => Invalid -- Kernel-message "cdrom: This disc doesn't have any tracks I recognize!" every 4 seconds in syslog https://bugs.launchpad.net/bugs/314108 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs