All recordings are failing (Ceton tuner)

[Peter Bennett <pgbennett@…>]

All recordings fail with latest master as well as with beta/0.28. The tuner is Ceton cablecard eth-6. It records ok for a while, then at some point nothing more is being written to the disk. Sometimes you get 1 minute of recording, sometimes 8 minutes of recording. The log shows nothing untoward, except at the end of the recording period it says that the recording failed and shows some xml with the details of the size of the gap.

This same cable card tuner is being used daily on myth 0.27 and has never had a failure in over a year. I simply removed one of the 6 tuners from my main installation and assigned it to the 0.28 test setup.

Here is a log, with "-v record ": ​http://paste.ubuntu.com/15084055/

In that session I set it to record a show that runs from 14:45 to 15:00. Since the backend only started up at 14:46 it should have got 13 minutes but only had 8 minutes in the recording file.

I tried adding "--loglevel debug" as well but that logs every packet and was creating megabytes of log every second, so I killed it.

Let me know what I can do to help track this down.

[Peter Bennett <pgbennett@…>]

Ceton log is here: ​http://paste.ubuntu.com/15084617/

Ceton logs have incorrect date/time but the relative times can be used. There is nothing untoward in teh log for tuner ocur[5] which is the tuner assigned to the 0.28 system

[Gary Buhrmaster <gary.buhrmaster@…>]

Looks to be the same as #12558 which was closed as an upstream Qt bug. And you are on the same version as the known bad one. Upgrade, or downgrade, your version of Qt.

[Peter Bennett <pgbennett@…>]

Thank you, that works. It took a while to figure out how to upgrade qt. The way I finally upgraded is by using the PPA canonical-qt5-edgers/backup-qt551 (​https://launchpad.net/~canonical-qt5-edgers/+archive/ubuntu/backup-qt551). Install package qt5-default from there.

Please close this ticket.