[mythtv] [patch] dvb cam fixes

Daniel Sangenberg daniel at sangenberg.se
Wed Apr 14 07:42:20 EDT 2004


Anders Hanson wrote:
> 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.
>

If you wait about 10 minutes when this happens it will reset the cam slot
and start to decrypt again but after 2-3 channel changes you are back at the
beginning again with the "No Right" problem.

> 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.
>

MythTV already selects the first and only menuitem when this happens so this
wont't fix this problem.

-- 
Daniel

>
> 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:        }
>> 255:
>>
>> G'night!
>>
>>
>>
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