I have a Yaesu VX5R, and I cannot read the radio using CHIRP daily-20141119 under Linux.

Symptoms: Set up to read the radio. Start the read, press the VFO button, and the radio shows "CLONE TX" for about a second or two, then CLONE FAIL. I've tried this with 2 cables - one that is just a Yaesu to RS-232 cable (and then using a Prolific USB to RS232 adapter, and also using a native 16550 based RS-232 port), and one that is a Yaesu to USB using a Prolific cable. I have verified my user ID can read the serial device, and have verified that the cable acts as a loop back cable using Minicom.

I'd like some suggestions on what to try next to debug what is going on. Are there any flags I can set to try to get more debug information? Does anybody have a Yaesu VX5 radio image I can try to load, to see if loading works?