[mythtv-users] Any solution to Error was encountered while displaying video and RingBuf......Invalid file (fd 16)?

[Bemer]

I'm running backend and frontend on the same machine and mythtv ver.19. A couple of days ago I've started to get those errors while trying to watch live tv after that I havent been able to watch live tv at all and I've searched for any solution without any success. Have anyone found a solution?

In myth all always get this "Error was encountered while displaying video" and in my mythfrontend.log:
2006-06-21 22:13:22.154 RingBuf(/video/recordings/3_20060621221319.mpg): Waited 2 seconds for data to become available...
2006-06-21 22:13:22.155 Checking to see if there's a new livetv program to switch to..
2006-06-21 22:13:22.755 RingBuf(/video/recordings/3_20060621221319.mpg): Timing out wait due to impending livetv switch.
0: start_time: 857.475 duration: -9223372036854.775
stream: start_time: 9527.500 duration: -9223372036854.775 bitrate=0 kb/s
2006-06-21 22:13:22.764 AFD: Opened codec 0x95b4d30, id(MPEG2VIDEO) type(Video)
2006-06-21 22:13:22.764 NVP: Disabling Audio, params(-1,-1,-1)
2006-06-21 22:13:22.764 NVP: Disabling Audio, params(0,-1,-1)
2006-06-21 22:13:24.218 TV: Changing from None to WatchingLiveTV
2006-06-21 22:13:24.227 Realtime priority would require SUID as root.
2006-06-21 22:13:24.319 LiveTV forcing JumpTo 1
2006-06-21 22:13:24.434 Video timing method: USleep with busy wait
2006-06-21 22:13:24.452 RingBuf(/video/recordings/3_20060621221320.mpg): Invalid file (fd 16) when opening '/video/recordings
/3_20060621221320.mpg'. 12 retries remaining.
 ......
 ...
2006-06-21 22:13:30.499 RingBuf(/video/recordings/3_20060621221320.mpg): Invalid file (fd 16) when opening '/video/recordings
/3_20060621221320.mpg'. 0 retries remaining.
2006-06-21 22:13:31.003 NVP, Error: JumpToProgram's OpenFile failed.
2006-06-21 22:13:31.003 NVP, Error: Unknown error, exiting decoder
2006-06-21 22:13:31.007 TV: Attempting to change from WatchingLiveTV to None
2006-06-21 22:13:36.469 TV: Changing from WatchingLiveTV to None
2006-06-21 22:13:36.701 TV: Attempting to change from None to WatchingLiveTV
2006-06-21 22:13:36.712 Using protocol version 26
2006-06-21 22:13:39.651 RingBuf(/video/recordings/3_20060621221336.mpg): Waited 2 seconds for data to become available...
2006-06-21 22:13:39.651 Checking to see if there's a new livetv program to switch to..

And what does the line "Realtime priority would require SUID as root." mean?

Regards
Christian