Mythtv v 0.29.1 recorder offline, tuner has an error

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kommiisar6
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Zimbabwe

Mythtv v 0.29.1 recorder offline, tuner has an error

Post by kommiisar6 » Sat Dec 29, 2018 12:59 am

I have myth tv 0.29.1 installed on a vanilla debian 9.6 system. I have configured the backend and am running the mythtv front end. My tuner card is apparently recognized and has a driver assigned.

lspci -nnk output:

02:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23887/8 PCIe Broadcast Audio and Video Decoder with 3D Comb [14f1:8880] (rev 04)
Subsystem: Hauppauge computer works Inc. WinTV HVR-1250 [0070:2259]
Kernel driver in use: cx23885
Kernel modules: cx23885

However whenever i try to watch live tv I get an error that the "tuner is busy". Furthermore if I try record a show from the epg it fails with an error "recorder offline"

Checking status in system status / tuner status page give me an error "tuner 4 has an error". Can anyone direct me to a log file where I can try to figure out why this is happening?

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paulh
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Great Britain

Re: Mythtv v 0.29.1 recorder offline, tuner has an error

Post by paulh » Sat Dec 29, 2018 1:23 pm

The mythbackend.log is what you want. Depends on how you start the BE if it is created and where. I would start looking in /var/log/mythtv/

You can always just stop the BE and run it in a console to see the log output. You may have to start it as user mythtv to get it to work though.

kommiisar6
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Posts: 14
Joined: Thu Dec 13, 2018 12:36 am
Zimbabwe

Re: Mythtv v 0.29.1 recorder offline, tuner has an error

Post by kommiisar6 » Sat Dec 29, 2018 2:58 pm

There is no /var/log/mythtv. The BE is auto starting somehow, probably setup by the dpkg installer from the 29.1 deb found on debmultimedia repo. I'm guessing there is a startup script somewhere that is invoking it but not enabling a log that is written to a file. There looks like some log like information is in the console where mythtv-setup is invoked.
Last edited by kommiisar6 on Sat Dec 29, 2018 3:05 pm, edited 1 time in total.

kommiisar6
Newcomer
Posts: 14
Joined: Thu Dec 13, 2018 12:36 am
Zimbabwe

Re: Mythtv v 0.29.1 recorder offline, tuner has an error

Post by kommiisar6 » Sat Dec 29, 2018 3:02 pm

[Work Around]

I removed this problem by swapping in another WinTV HVR-1250. Apparently this is a "real" 1250. I suspect the first one wasn't (maybe a 1265?)

Anyway the lspci -nnk output:

02:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder [14f1:8852] (rev 04)
Subsystem: Hauppauge computer works Inc. CX23885 PCI Video and Audio Decoder [0070:7911]
Kernel driver in use: cx23885
Kernel modules: cx23885


In particular notice the good subsystem ID [0070:7911] as compared to the bad one [0070:2259]. Did I just get fooled by Hauppage changing the hardware to non-linux compatible and yet leaving the model number unchanged?

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