Mythtv 0.28 failing to record

[srochford]

I've been running MythTV successfully for many years but recently I've had many failed recordings.

When this happens, the only way to get it to record again seems to be to reboot the machine; just restarting the Mythbackend service doesn't fix it (I've also tried restarting MySQL at the same time).

When it happens an error like this is logged in mythbackend.log at the time it should be recording:
mythbackend[8839]: C CoreContext programinfo.cpp:351 (ProgramInfo) ProgramInfo(): Failed to find recorded entry for 0.

and at the end of the program's scheduled slot it logs this:
mythbackend[8839]: I CoreContext scheduler.cpp:725 (UpdateRecStatus) Updating status for "program name" on cardid 6 (Failing => Recorder Failed)

This is MythTV Version : v0.28-107-g5a7b3c8 running on Ubuntu 16.04.1 with kernel 4.4.0-59 and it's kept patched up to date.

I did think that perhaps it was running out of some resource so I scheduled a daily reboot but that's made no difference.

Any ideas where I can look?

Steve

[paulh]

What tuners are you using?

[Kwisher]

I would suggest adding the MythBuntu PPA to get the newest patches to MythTV.

[srochford]

Thanks both.

It's a Hauppauge WinTV-Duet-HD-Stick and I do have the Mythbuntu PPA installed.

[dizygotheca]

mythbackend[8839]: I CoreContext scheduler.cpp:725 (UpdateRecStatus) Updating status for "program name" on cardid 6 (Failing => Recorder Failed)

The tuner died for some reason. Updating Myth can't fix that.

LinuxTV claims it is similar to the TD-Nova sticks, which have a reputation for locking up when both tuners are scanning EIT. So limit active EIT to 1 tuner, if you use it. (mythtv-setup)

When a USB tuner fails it needs to be reset. Restarting software won't do that. Often a reboot won't even do it because USB ports tend to be always powered. Unplugging the stick for a few secs will reset it. Then re-insert it and restart the backend. In dmesg check for

Code: Select all

found a '...' in cold state, will try to load a firmware

rather than "warm state"