[mythtv] [patch] dvb cam fixes

Anders Hanson anders.hanson at speedo.nu
Sun Apr 11 11:00:24 EDT 2004

I have a similar problem.

My problem is that sometimes when I switch channel the CAM is reporting 
"No Right" and the
channel is not decrypted. The only solution to this problem is to 
restart mythbackend.
I think that the correct thing to do if the CAM reports "No Right" is to 
reset the CAM or
to retune to the last channel.

In the end I think that the dvb menu has to be show as a osd meny in the 
frontend soo that
the viewer can make a choice.


Kenneth Aafl°y wrote:

>On Thursday 08 April 2004 04:36, you wrote:
>>Kenneth Aafl°y wrote:
>>>On Thursday 08 April 2004 04:19, you wrote:
>>>>Kenneth Aafl°y wrote:
>>>>>Yeah, It was reported in your previous report also, but I thought it
>>>>>was just g++ gibberish. Anyways, updated the main patch in this
>>>>>also, one-liner (forgot to include dvbcam.h when making the patch),
>>>>>if you only need the last update, just edit out the lines above
>>>>>'Index: dvbcam.h'.
>>>>>Thanks for reporting the errs, Daniel!
>>>>No problem, well now it compiles atleast but it didn't fix my
>>>>problem with the 'no right' in the cam menu that appears after
>>>>changing the channel two or three times but it was worth a try.
>>>This sounds like a CAM problem, not programmer problem, as I've made
>>>it so that any menu is automagically accepted (will make it display a
>>>message on an active frontend, if any later). Could you post the
>>>complete log with 'mythbackend -v channel,record' either to the list
>>>or my personal mailbox?
>>I will send you the -v channel,record version tomorrow since im way to
>>tired right now :)
>>But i can give you the rest of the info now.
>>This is where it loops
>>Adding CA Descriptor (CASID=0500, CAPID=E304)
>>2004-04-08 04:15:37 DVB#0 CAM - Sending PMT to slot 1.
>>CloseSession 00000005
>>OpenSession 00400041
>>New MMI (session id 5)
>>5: <== Display Control
>>5: ==> Display Reply
>>5: <== Menu Last
>>5: <== Text Last 'Viaccess Module'
>>5: <== Text Last ''
>>5: <== Text Last 'OK to return to the Main menu'
>>5: <== Text Last 'No right'
>>CAM Menu Title: Viaccess Module
>>CAM Menu SubTitle:
>>CAM Menu BottomText: OK to return to the Main menu
>>CAM Menu Entry(0): No right
>>Selecting first entry
>>5: ==> Menu Answ
>>iirc it takes about 15mins or so until it resets the cam slot and then it
>>starts to decrypt the channels again until the next time this appears, some
>>channels seems to trigger this more easily then others and i know of two
>>more people with the same provider and same problem and one of them has the
>>same problem in vdr aswell.
>>The lastest version of the technotrend windows software fixes the problem,
>>in earlier versions i had to restart the software when i got the 'no right'
>>but the firmware in the driver was the same as in the previous version.
>>If there is anything i can do to get more info on this please let me know.
>I'm assuming this is a problem with the CAM sending the 'No Right' message 
>even though you have access to the channel (you mention it decrypting a bit 
>of it). First, try to comment out this section of the dvbcam.cpp:
>                if (menu->Selectable())
>                {
>                    cerr << "Menu is selectable" << endl;
>                }
>Then test it some with that commented out, if that gives somewhat different 
>results (like longer decryption period) please report it. If it much of the 
>same, please try commenting out the entire message handler, from the start at 
>line ~210:
>210:        if (ciHandler->HasUserIO())
>till the end, around line 255:
>253:            first_send = true;
>254:        }

More information about the mythtv-dev mailing list