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HDTV DVB-T2 cards and MythTV

 
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wyliecoyoteuk
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PostPosted: Wed Jun 11, 2014 11:26 am    Post subject: HDTV DVB-T2 cards and MythTV Reply with quote

Has anybody on here used HDTV PCIe cards with MythTV?
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nelz
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PostPosted: Wed Jun 11, 2014 11:40 am    Post subject: Reply with quote

I've been using one for a number of years, it's a TBS 6280. Driver installation is a bit of a pain because they are out of kernel drivers. The only other DVB-T2 card I tried also used out of kernel drivers. I'd be interested in finding a kernel-supported card.

Apart from the driver issue, the card works very well.

http://linuxtv.org/wiki/index.php/TBS6280
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wyliecoyoteuk
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PostPosted: Wed Jun 11, 2014 12:33 pm    Post subject: Reply with quote

How about encrypted content?
I have been told that some freeview channels are encrypted. Is that a problem with the main ones?
(BBC,ITV,CH4 etc)
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nelz
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PostPosted: Wed Jun 11, 2014 12:43 pm    Post subject: Reply with quote

AFAIK the only encrypted ones are those that need a subscription, like UK Gold and the ones that only broadcast after midnight Wink

The mainstream channels all work fine.
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wyliecoyoteuk
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PostPosted: Thu Jun 12, 2014 10:12 am    Post subject: Reply with quote

Not a problem for me then Wink
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Ram
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PostPosted: Thu Jun 12, 2014 6:29 pm    Post subject: Reply with quote

wyliecoyoteuk wrote:
Not a problem for me then Wink


In bed by midnight then Razz
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nelz
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PostPosted: Thu Jun 12, 2014 7:09 pm    Post subject: Reply with quote

That's why he needs to record Very Happy
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wyliecoyoteuk
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PostPosted: Tue Jul 01, 2014 8:42 pm    Post subject: Reply with quote

Nelz, what sort of CPU do you use with the TBS card?
I have installed it ina min-itx with a Kabini quad core APU, but I am having some issues with stutter on HD.
I have ordered a new case with room for a low profile card instead of using a ribbon cable riser.
Would the catalyst drivers cure that do you think?
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nelz
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PostPosted: Tue Jul 01, 2014 10:40 pm    Post subject: Reply with quote

It's an old Core2duo chips, but the box is a backend only, stuffed full of tuners and hard rives and in a place where the noise doesn't matter. The front end in my lounge is a Nettop, also a few years old, running the Nvidia graphics drivers on an Ion chipset, playback is stutter-free.
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wyliecoyoteuk
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PostPosted: Wed Jul 02, 2014 7:11 am    Post subject: Reply with quote

For some reason the 6280 specifies 2.6ghz multicore processor.
I thought that the offload to the gpu on the kabini would mean it would be ok, even though it was only 2.05ghz
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nelz
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PostPosted: Wed Jul 02, 2014 9:09 am    Post subject: Reply with quote

That's probably a requirement of the Windows software. All the card is doing is demuxing the DVD stream and dumping it to disk. The real CPU work is in decoding and plating that stream. The CPU on my backend, running the 6280 plus a couple of DVD-T cards, is

Code:
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Pentium(R) Dual  CPU  E2200  @ 2.20GHz
stepping        : 13
cpu MHz         : 2203.000
cache size      : 1024 KB


Hardly cutting edge.
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wyliecoyoteuk
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PostPosted: Wed Jul 02, 2014 4:28 pm    Post subject: Reply with quote

Thanks.
The Kabini is 2.05GHz, Quad core, with a Radeon R3 8400 GPU builtin, I put in 4GB of low latency ram, so I thought it should handle it.

TDP is 25W!


And they are cheap, cpu + motherboard came to 65
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wyliecoyoteuk
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PostPosted: Thu Jul 03, 2014 10:41 am    Post subject: Reply with quote

Applied the proprietary Catalyst drivers, HD smooth now Smile

Just for info, also works well with Win8.1 and the LAV codecs (doing a Windows article for another mag).

so it looks like you were right.
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