airodump-ng --gpsd -> Invalid packet capture length 0 - corrupted file?

[Nemis]

every time i use
airodump-ng -w test.cap --gpsd mon0
(and stop ^c) i have a .cap file that aircrack give me error :
"Invalid packet capture length 0 - corrupted file?"



when if i do
airodump-ng -w test.cap mon0
i have an usable .cap file
my 3945 do injection connect etc , and gpsd is working, tested with xgps and have the gps coordinate on test.kismet.nextxml

[Gitsnik]

Just to be sure, do you have a gps plugged in, did you start gpsd and wait 60 seconds before starting airodump?

[Nemis]

Just to be sure, do you have a gps plugged in, did you start gpsd and wait 60 seconds before starting airodump?

yes, i have to wait that BT gps see the satellite, i test if it work with xgps
after this airodump show on video the correct gps data , and write it on .kismet.nextxml file.
but .cap give the error

[Gitsnik]

What happens if you try it with kismet, you can channel lock to your AP without issue and it saves .cap files as well. If one is working and the other isn't, that helps narrow down the problem.