[linux-dvb] Smit CAM problems

Vladimir Prudnikov vpr at krastelcom.ru
Thu Jun 12 18:18:58 CEST 2008

Do you think SMiT will be interested in hunting for bugs in linux  
drivers? These modules apparently work fine with any other hardware  
(I'm sure professional ones do!)


On Jun 12, 2008, at 5:26 PM, Frederic CAND wrote:

> Did you try to contact SMIT support ?
> Vladimir Prudnikov a écrit :
>> Didn't try Aston CAMs with mpeg4. But they do up to 12 channels of   
>> mpeg2 perfectly well. With no problems at all. SMiTs that are for  
>> 8  services can do only 3 to 4 for me.
>> I think it's some kind of a driver bug because it begins working  
>> after  reinitialisation. Doesn't get hot. I have tried to call  
>> Aston as well  but with no success yet.
>> Regards,
>> Vladimir
>> On Jun 12, 2008, at 2:56 PM, dan.lita at sttcr.org wrote:
>>> Dear Vladimir,
>>> I read your post on linux-dvb list. We have an Aston Viaccess   
>>> Professional 2.15 CAM .
>>> I read that you also use Aston CAMS.  My question is whether your   
>>> Aston Viaccess cam can descramble H264  feeds or not?
>>> We have tried on a PACE HDTV receiver and a Tandberg unit and it   
>>> does not descramble the H264 video pid. (black screen)
>>> This does not happen with Viaccess RED cam.
>>> On older Common interface adapters from Technotrend, the one for  
>>> TT  Premium DVB-S card, there was a jumper for 3V or 5V cam  
>>> operation.
>>> I assume the new CI adapter does not have such jumper. If it  
>>> still  exist maybe it will be a good idea to switch from one  
>>> voltage to the  other.
>>> Another solution is to test whether it works or not for Irdeto to   
>>> use an Alphacrypt Classic CAM which, at least in theory,  
>>> according  to MASCOM, supports Irdeto.
>>> The third thing is to notice whether the SMIT cam gets hot in   
>>> operation. If it gets too hot maybe a fan similar to the one for   
>>> graphics card must be put near the Common interface adapter.
>>> BTW. Do you have any e-mail address from Aston? I have tried to   
>>> contact  them but there is no e-mail address in their website.
>>> Best regards,
>>> Dan Lita
>>> Vladimir Prudnikov wrote:
>>>> Hello!
>>>> I'm using SMIT cams to descramble channels on TT S-1500 and TT-   
>>>> S2-3200. After some time of normal operation SMIT cams drop out   
>>>> and  stop decrypting the stream. It needs to be removed from the  
>>>> CI  slot  and reinserted to resume normal operation. Aston CAMs  
>>>> have no  such  problems, but they don't support 0x652 Irdeto.
>>>> I'm streaming with vlc. Tried many SMITs (Viaccess and Irdeto).   
>>>> Same  problem everywhere.
>>>> Regards,
>>>> Vladimir
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> -- 
> CAND Frederic
> Product Manager

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