Have been running Plex server on a Fedora box for many years, always update to the latest beta but have never gotten the Live TV or TV recording to work after several debug attempts and reading many of the relevant posts on the forum.
Checked directory permissions, checked that the Silicondust HD Home Run works with other applications (iOS “Channels” app and Home run viewer) .
Tried every channel and the recordings always fail with a transcoder error and live TV attempts fail with a “Playback error - Unable to tune channel”
Plex Version 1.10.1.4561
No previous version has ever worked with the DVR / Live TV functionality.
All other Plex functions work normally including transcoding to Apple TV and Web clients.
During DVR and Live TV attempts directories are created and short/zero length files are recorded to /plex-temp (tmp equivalent) and .grab directory in media directory. Folder user/group and write permissions have been checked OK.