Dive data import error

[Ryan J]

Hi there, I am sure that I have got this to work on this computer before, but for some reason it no longer will download from my Cressi Goa.

It looks like it is going to work and detects the serial number, but then it says "Download complete" on the progress bar with an error box popping up.

Log file below. I have confirmed I'm a member of the dialout group, and I'm using MX Linux; previously has worked with Linux Mint as well.

Thanks.

*** logfile ***

Subsurface: v6.0.5404.0, built with libdivecomputer v0.9.0-devel-Subsurface-NG ()
[0.000000] INFO: Open: name=/dev/ttyUSB0
[0.125394] INFO: Configure: baudrate=115200, databits=8, parity=0, stopbits=0, flowcontrol=0
[0.129440] INFO: Timeout: value=3000
[0.129452] INFO: RTS: value=0
[0.131142] INFO: DTR: value=0
[0.133318] INFO: Sleep: value=100
[0.233557] INFO: Purge: direction=3
[0.233658] INFO: Sleep: value=100
[0.343132] INFO: Write: size=8, data=AAAAAA001D9CC355
[3.345335] INFO: Read: size=0, data=
[3.345343] ERROR: Failed to receive the answer. [in cressi_goa.c:164 (cressi_goa_device_receive)]
[3.345347] ERROR: Failed to exit PC Link. [in cressi_goa.c:740 (cressi_goa_device_close)]

[Ryan J]

I did some trouble shooting to try and narrow down the issue. I was able to get the USB interface (non-bluetooth) to connect and download the data using the Cressi UCI program and Subsurface on Windows. 

[Jef Driesen]

On 2025-09-21 02:18, Ryan J wrote:
> I did some trouble shooting to try and narrow down the issue. I was
> able to get the USB interface (non-bluetooth) to connect and download
> the data using the Cressi UCI program and Subsurface on Windows.

Your logfile shows two problems:

>> Subsurface: v6.0.5404.0, built with libdivecomputer
>> v0.9.0-devel-Subsurface-NG ()
>> [0.000000] INFO: Open: name=/dev/ttyUSB0
>> [0.125394] INFO: Configure: baudrate=115200, databits=8, parity=0,
>> stopbits=0, flowcontrol=0
>> [0.129440] INFO: Timeout: value=3000
>> [0.129452] INFO: RTS: value=0
>> [0.131142] INFO: DTR: value=0
>> [0.133318] INFO: Sleep: value=100
>> [0.233557] INFO: Purge: direction=3
>> [0.233658] INFO: Sleep: value=100
>> [0.343132] INFO: Write: size=8, data=AAAAAA001D9CC355
>> [3.345335] INFO: Read: size=0, data=
>> [3.345343] ERROR: Failed to receive the answer. [in cressi_goa.c:164
>> (cressi_goa_device_receive)]
>> [3.345347] ERROR: Failed to exit PC Link. [in cressi_goa.c:740
>> (cressi_goa_device_close)]

First there is no attempt to download any dives. The connection is
opened and immediately closed again. So it's normal you don't get any
dives from this download session.

Second, when sending the exit command during close, you get no response
at all from the dive computer. Maybe the dive computer wasn't in PC
mode, or a temporary connection issue?

Jef