h1. Connection Issues using Ubuntu

These are not Chirp issues; they are operating system (Linux, Ubuntu) issues. If these notes do not help, get Ubuntu help either through a search or using the Ubuntu support sites.

h2. Symptom with a USB connection

Click Radio then Download from Radio at the top menu bar; a window appears with Port, Vendor and Model¶

Click Port and from the pull-down list pick the USB option. Usually that is at the bottom of the list with a name like /dev/tty/USB0¶

An error window appears with words like An error has occured.¶

Below the error words is something like Permission denied¶

h2. Symptom with a serial (RS232) connection

Click Radio then Download from Radio at the top menu bar; a window appears with Port, Vendor and Model¶

Click Port and from the pull-down list pick the serial port (TTY) with a name like /dev/ttyS0. You may have to experiment to find which port number is active. Another common connection is /dev/ttyS4.¶

An error window appears with words like An error has occured.¶

Below the error words is something like Permission denied¶

h2. Solution

The most common cause is that the user(s) do not have permission to use the serial-USB connection. Permission must be established for the user. There is much more on this common issue in Linux or Ubuntu wikis and support websites.

Start a terminal session.¶

Enter this this command into the terminal session: @sudo gpasswd --add ${USER} dialout@¶

After executing the command, check that it worked with: @groups ${USER}@¶

The user name will be followed by a list that includes dialout. Dialout means permission for the TTY set that includes serial and USB connections.¶