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Choppy audio/video with KWorld DVB-S 100...

DISCUSSION Andrea Giuliano 1 participant 1 message Jun 22, 2009 Media (V4L/DVB)

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Hi,

I've been watching and recording free channels for almost a couple of year with this card, using MythTV, but suddenly some weeks ago I couldn't any more.

I thought it was a problem with the signal in my region, but it could not be the case, since I still can watch TV perfectly fine with the same dish and a set top box.

Also, at present MythTV says "signal 98%, s/n 4.8db", which sounds strange.

Last but not least, femon -H gives the following output:

FE: Conexant CX24123/CX24109 (DVBS)
Problem retrieving frontend information: Operation not supported
status S | signal 44% | snr 64% | ber 35 | unc 0 |
Problem retrieving frontend information: Operation not supported
status S | signal 44% | snr 60% | ber 35 | unc 0 |
Problem retrieving frontend information: Operation not supported
status S | signal 44% | snr 63% | ber 35 | unc 0 |
Problem retrieving frontend information: Operation not supported
status S | signal 44% | snr 63% | ber 35 | unc 0 |
Problem retrieving frontend information: Operation not supported
status S | signal 44% | snr 62% | ber 35 | unc 0 |

The lines about a problem are new to me: I ran femon many many times in the past without those lines. Please also note the completely different value for the strength (44% vs 98% that MythTV says).

I'm afraid my card could be damaged, or something is going wrong with driver, config or what else.

One more thing: the problems above appear with kernel 2.6.25-1, 2.6.26-1 and 2.6.2.6-2, but not with 2.6.18-1. With the latter I can record perfectly, and femon shows a much better S/N ratio! But I've been running 2.6.26-2 since many months ago, how could it be a kernel problem?

What's going on?

Any hint would be much appreciated.

---
Andrea