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PostPosted: Sat Dec 01, 2018 8:51 am 
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Joined: Sat Sep 16, 2006 4:09 pm
Posts: 39
I've been trying linhes 8.5 for about a year with both a hauppauge 950q and an 850. They both have the same chipset so mythtv should think they're identical.

I get a failed recording about once a week though and I've been taking another shot at trying to solve that. I've seen something about a "950q usb quirk defect" in the 4.9 kernel.https://lwn.net/Articles/727671/ but it looks like that was fixed in kernel 4.9.37.

Is anybody getting reliable results with linhes 8.5 and hauppauge 950q tuners?


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PostPosted: Tue Feb 05, 2019 10:52 am 
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Joined: Tue Aug 08, 2006 7:08 pm
Posts: 556
Location: UK
I don't know about the quirk, but is there any pattern to the problem, like particular channel(s) or a particular mux (transport) that they fail on?
It may sound like the bleedn' obvious, but is your LH box being hit with a particular heavy task at the same time?

I've had the occasional zero byte recording when using the ability to record off of the same mux, and the recordings are set to start at the same time. One will start, the other has a recording fail, if you catch it early enough the recording can be restarted.
In the settings for the card under Recording Options (in the backend setup program), there should be some options (I don't know for LH8.5 but it was there for earlier versions):

Code:
Recording Options
Max Recordings: 2
Wait for SEQ Start Header: Yes
Open DVB Card On Demand: Yes
Use DVB Card for active EIT scan: Yes
DVB Tuning Delay (msec): 700


So you might try fiddling around with these, also you might try altering the Signal Timeout and Tuning Timeout settings as well

Bruce S.

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