I had the same problem.  After some frustration, I discovered that putting
pressure on that dual audio-style connector with my hand to hold in tightly
in place throughout the entire download process solved the connectivity
problem.  Then again, I'm using a cheap Baofeng radio and Baofeng cable, so
that might not be your problem.  (Also, I'm running Debian, not Kubuntu.)

On Thu, Jun 22, 2023 at 8:47 PM Michael Butash via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Looks like it's just creating a generic usb serial port, so I'd presume
> you need to tell the program your hardware device serial speed, flow
> control, bits, etc and have it misconfigured currently it's erroring in
> that seeing bits it expects returned.  Being legacy serial vs like a
> hardware sdr, this is not negotiated but rather needs set for your device
> requirements usually, but depending on your hardware that might not always
> be the same.
>
> Also make sure the port is actually running on /dev/ttyUSB0 and not USB1
> or other, I've had this happen if a cable gets yanked or wiggled causing
> the device to reset too quickly and is already in use.  Check using "dmesg
> | grep usbTTY" to make sure the number.
>
> -mb
>
>
> On Thu, Jun 22, 2023 at 4:37 PM Jim via PLUG-discuss <
> plug-discuss@lists.phxlinux.org> wrote:
>
>> I'm in need of help with Chirp on Kubuntu 22.04.  CHIRP is a program
>> that allows for easy programming of a transceiver and for backing up the
>> configuration of the radio in question.  I've used it before I upgraded
>> to 22.04 and it worked.  Now it doesn't.  I have the port set to
>> /dev/ttyUSB0.   I give CHIRP the correct vendor and model information.
>> Then I click download.  Chirp shows nothing, but the radio says TX and a
>> progress bar then Clone OK when it's done.  This is what should happen.
>> However Chirp should also show a progress bar.  However it does
>> nothing.  Instead it give me a dialog box that says:
>>
>> Error communicating with the radio
>>
>> module 'collections' has to attribute 'Callable"
>>
>> This suggests to me that Chirp is sending data to the radio that tells
>> it to send its data to Chirp, but it acts like the computer isn't able
>> to receive it.  Does anyone know how to fix this?
>>
>>
>> Thanks.
>>
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