Technotrend TT-Connect CT 3650 and dvb_ca

Hello Everyone !

I have three DVB-C devices of the type mentioned, connected to my mythtv-server which have been working great for a long time. As my cable provider now are planning to start encrypting all channels, I have bought a Xcrypt CAM module as needed. I soon realised that I needed to upgrade the kernel and are now running kernel /: 3.2.0-17-generic #27-Ubuntu SMP Fri Feb 24 22:03:50 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux/ .

When inserting the module everything looks well :

/dvb_ca adapter 0: DVB CAM detected and initialised successfully/

The problems start when trying to watch an encrypted channel. I do get a channel lock in myth, so far so good, but no picture...

In my syslog I see the following :

/dvb_ca adapter 0: CAM tried to send a buffer larger than the link buffer size (32896 > 255)! dvb_ca adapter 0: CAM tried to send a buffer larger than the ecount size! dvb_ca adapter 0: DVB CAM link initialisation failed :(/

Any ideas on what might be wrong ?

Best regards,

Johan

Hi Johan,

I have a similar problem which happens every few days with this card. For me it helps to remove and reinsert the kernel module whenever this happens.
"rmmod -f dvb_usb_ttusb2 && modprobe dvb_usb_ttusb2"

see also the following unresolved threads:
http://www.spinics.net/lists/linux-media/msg43531.html

http://www.spinics.net/lists/linux-media/msg43813.html

Martin

Thanks a lot, Martin !

My challenge is that it happens every time i try to watch an encrypted channel.... :-(

Best,

Johan