hi every one, I have been trying to get a midi drum machine connected to Hydrogen. The first time was not a problem through Qjackctl. second time they would not connect. I tried some tutorials on youtube but now I have lost the alsa tab in the Connect screen. I thing a2jmidid -e was the command that stuffed it. I have tried uninstalling and purgering Jack but after reinstalling it is the same. Can some one help or at least point me in the right direction? I am using Ubuntu Studio based on Ubuntu 16.04.6 LTS. I haven't upgraded due to all the unfinished projects I have going.