I have installed MatterControl 2.0 on an admin account successfully on a new laptop running Ubuntu 20.04
Whenever I attempt to set up my printer with MatterControl, I get the alert saying permission denied and that my account needs permission to access the serial ports.
I used the recommended
$ sudo gpasswd -a $USER dialout
command as well as similar commands found online. I have confirmed my account does indeed have permission to access the serial ports now, and I did log out and back in, but MatterControl still comes up with this permission denied alert. I even tried uninstalling MC, confirming port permissions, and re-installing MC, but the alert persists.
Any direction will be greatly appreciated!