hello, I have a ubuntu pc and gammadard in smargo in cccam 2.1.3 and the card is recognized and ecm is ok channel are decrypted but black screen

Lecteur de carte /dev/ttyUSB6
handled 9(9) ecms and 0(0) emms
Irdeto card
Caid 622 ACS 1285 MCR
Cardserial xxxxxxxxxxxxxxxxx (xxxxxx)
Provider 00 0129a4

in cccam.conf on pc ubuntu i have this line

CAMKEY: /dev/ttyUSB6 00 00 00 00 00 00 00 00
CAMDATA: /dev/ttyUSB6 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
TRY ALL CHIDS: /dev/ttyUSB6

this gamma card in sci0 on dream800 no prob I have the image on the channel

Lecteur de carte /dev/sci0
handled 138(138) ecms and 1(1) emms
Irdeto card
Caid 622 ACS 1285 MCR
Cardserial xxxxxxxxxxxxxxxxx (xxxxxx)
Provider 00 0129a4

in cccam.conf on dream800 i have this line

CAMKEY: /dev/sci0 00 00 00 00 00 00 00 00
CAMDATA: /dev/sci0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
TRY ALL CHIDS: /dev/sci0

please help me for config pc ubuntu txh