[mythtv-users] [SOLVED-ish] Thinking of moving on from MythTV ... I found the main problem, but still have 292e woes

[John Pilkington]

On 20/04/17 12:06, Damian wrote:
> On 20/04/2017 11:55, John Pilkington wrote:
>> On 20/04/17 11:32, Damian wrote:
>>> On 20/04/2017 11:20, John Pilkington wrote:
>>>> On 20/04/17 10:58, Damian wrote:
>>>>> On 20/04/2017 10:44, John Pilkington wrote:
>>>>>> On 20/04/17 10:23, Simon Hobson wrote:
>>>>>>> Damian <myth at surr.co.uk> wrote:
>>>>>>>
>>>>>>>> I solved my MyhtTV problems last night! :-)
>>>>>>>>
>>>>>>>> It turns out that my 4 way TV amplifier had died.
>>>>>>>
>>>>>>> Ah, (almost) the old basic of "check the cables first". Good you've
>>>>>>> found the problem.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> One thing that is frustrating, but I'm just going to live with it,
>>>>>>>> is the realisation that the HD tuner I bought a year or two ago
>>>>>>>> just
>>>>>>>> doesn't work on Linux. Maybe it would work with some tinkering and
>>>>>>>> manually installing drivers, but we don't value TV content to the
>>>>>>>> same extent as we do film content, so we'll just live with the SD
>>>>>>>> resolution that my two SD USB tuners provide.
>>>>>>>>
>>>>>>>> The HD tuner in question is a PCTV TripleStick (292e). I've read
>>>>>>>> that it should work, but it simply doesn't.
>>>>>>>
>>>>>>> Can't help with that, but long term it's worth persevering to get a
>>>>>>> T2 capable tuner working. It's clear that the plan is for any new
>>>>>>> muxes to be T2, and to move everything to T2 eventually. So over
>>>>>>> time, I expect T2 incapable tuners to get fewer and fewer channels -
>>>>>>> though I imagine they'll keep a core of base channels going for some
>>>>>>> time.
>>>>>>>
>>>>>>
>>>>>> I don't have a 292e but support for it was added '19 months ago' to
>>>>>> Master.  What version are you running now?
>>>>>>
>>>>>> https://code.mythtv.org/trac/ticket/12342
>>>>>>
>>>>>> John P
>>>>>
>>>>> That's what I understood myself before buying it, but it's not working
>>>>> for me.
>>>>>
>>>>> Not sure of version numbers of anything at the moment, but I'm running
>>>>> the latest stable version of Xbuntu and the latest stable version of
>>>>> MythBuntu on top of that.
>>>>>
>>>>> MythTV 'finds' the USB tuner (I can select it in setup), but a channel
>>>>> scan provides nothing! Doesn't even flicker to 1% at any point.
>>>>>
>>>>> Damian
>>>>
>>>> I'll quote(ish) from another recent post:  Any good?
>>>>
>>>>  I use the Transport Editor to set
>>>>  8 MHz B/W, DVB-T2 and QAM256 for the T2 muxes
>>>>
>>>> Was your scan using the DVB-T2 capable tuner.   'dmesg | grep adapter'
>>>> should identify them, and myth lets you select before setting up the
>>>> scan.
>>>>
>>>> John
>>>
>>> Hi John,
>>>
>>> When I tested last night, I removed the 2 USB tuners that I usually use
>>> and deleted them from MythTV. I then rebooted with the 292e tuner and
>>> set it up as the only "DVB-T/S/C, ATSC or ISDB-T tuner card" (should I
>>> have selected a different card type? I looked at all of the options and
>>> it seemed to be the best fit)
>>>
>>> I then scanned with that freshly set up capture card.
>>>
>>> So, it could only have been scanning with the tuner that was installed.
>>>
>>> Damian
>>
>> Sounds convincing.  No muxes seen at all?  Re-check RF connections -
>> and than perhaps dispose of in compliance.... :-)
>>
>> John
>
>
> No, nothing found at all.
>
> Unplugged the 292e, and plugged one of the old SD tuners in (same USB
> port and same aerial cable), deleted all tuners from MythTV again, added
> the new one and the scan worked fine.
>
> MythTV can see the tuner, but a scan produces nothing.
>
> It works find on Windows, but not on my MythTV backend system.
>
> Damian

Hmm.  I'd forgotten that you had said that.  Could it be a hardware 
variant?  But that needs more diagnostics than I recall.  lsusb?

Once my 290e didn't see anything.  I found the innards of its coax 
connector attached to another input cable I had used.

Good luck...

John