[mythtv-users] Digital Devices Duoflex with Octopus CI

[Hika van den Hoven]

Hoi Discussion,

 Earlier this week I received my new DD duoflex C2/T2 with a Octopus
 single CI+. I got it setup without to much difficulty, although proper
 documentation is a bit lacking. I had to gather it from all over the
 net.
 http://www.digital-devices.eu/shop/de/linux-treiber
 https://www.linuxtv.org/wiki/index.php/Digital_Devices_DuoFlex_C%26T
 and some others. I used the dddvb driver as in the first link.
 The kernel driver is not supporting all DD devices and you need
 a separate driver that seems to work OK AND a not so good documented
 option needs to be added on loading the ddbridge module:
 adapter_alloc=3, although dd mentions fmode=3.  From what I have
 found it has to do with unicable, any way without it both tuner and
 the CI get their own /dev/dvb/adapter* directory and besides them
 not being able to communicate with each other, making the CI+
 unusable, MythTV gets unstable. It has the following possible
 settings:
 0: adapter0, adapter1 and adapter2
 1: adapter0 with both frontends, adapter1 with CI+
 2: adapter0 with both frontends, adapter2 with CI+
 3: single adapter0 directory with both frontends and CI+
 Any other integer gives option 2, no option gives 0.
 Both frontends have a frontend,demux, dvr and net node
 The CI+ has a ca0 and a ci0 node.

 You should be able to switch the frontends between Cable and
 Terrestrial mode, but I have not found how, but as they at present
 are in Cable modus as I need them, that is no urgent problem.

 If you leave it at that they work good and all channels are found,
 however not with the CI+ although it seems to have to work almost
 transparent and I found some vague mentioning that some got it
 working with one tuner under MythTV and a little less vague with
 TVheadend.

 It should work by redirecting the output from one of the tuners to
 the CI+ port and it should be transparent. (In windows you can use
 the CI+ with both tuners, but not under Linux) In my case through:

 echo "00 02" > /sys/class/ddbridge/ddbridge0/redirect
 echo "01 02" > /sys/class/ddbridge/ddbridge0/redirect

 before Mythbackend is started for either the first or the second
 tuner as described in the second link.
 I guess I have to disable multirec for that tuner.

 If I do this that tuner becomes completely blind. I can not find any
 channels anymore, (but I can through the other) and I can not get any
 output. The CAM is OK as it works in my TV. If I try to watch liveTV
 through that tuner I get a black screen and I see no errors in the
 log. At one time the backend even kind of froze. I could not stop it
 even with kill and when I rebooted the machine it hung.

 Anybody any thoughts?

-- 
Tot Mails,
 Hika                          mailto:hikavdh at gmail.com
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