[grid@fc620887 ~]$ screen -x
There are several suitable screens on:
        22091.pts-6.fc620887    (Dead ???)
        17346.pts-5.fc620887    (Attached)
        6124.pts-0.fc620887     (Dead ???)
        2095.pts-0.fc620887     (Dead ???)
        13377.pts-0.fc620887    (Dead ???)
        24764.pts-5.fc620887    (Dead ???)
        19937.pts-0.fc620887    (Dead ???)
        14295.pts-6.fc620887    (Detached)
Remove dead screens with 'screen -wipe'.
Type "screen [-d] -r [pid.]tty.host" to resume one of them.
[grid@fc620887 ~]$