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I've been suffering from the same problem. Searching for a solution I've found your question and also this bug report at Launchpad: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1304598 . I've entered the Device Manager in the System Settings, as someone suggests there, but it hasn't worked. I've entered again and have it let run ...


The command who gives me information about current loged in users, and their VTs and displays right away. All I need to do is find the user I want and parse the output. who | grep $USER | grep -v tty | grep -v pts/ | cut -d' ' -f2 This will output :0, that's what I needed.

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