[mythtv-users] Error was encountered while displaying video.

Mon Mar 27 22:23:35 UTC 2006

Sorry for the top post. I and many others have this problem. I have done a
backtrace during the freeze and get the same results each time. The program
appears to be hung in __nanosleep_nocancel() in the tls library. I also
notice that most people report a tls IOBOUND error in the logs, these seem
to be related. I have tried to get some help on this but have had my last 3
requests for help ignored.  Here is my gdb output.:

(gdb) 
(gdb) bt
#0 0x00ba67a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 
#1 0x00c897f6 in __nanosleep_nocancel () from /lib/tls/libc.so.6 
#2 0x00cb7d6a in usleep () from /lib/tls/libc.so.6 
#3 0x08065347 in startTV () 
#4 0x080657b5 in TVMenuCallback () 
#5 0x0061a58c in ThemedMenuPrivate::handleAction () from
/usr/lib/libmyth-0.19.so.0
#6 0x0061898e in ThemedMenuPrivate::keyPressHandler () from
/usr/lib/libmyth-0.19.so.0
#7 0x0061c60b in ThemedMenu::keyPressEvent () from
/usr/lib/libmyth-0.19.so.0 
#8 0x04ef44ac in QWidget::event () from /usr/lib/qt-3.3/lib/libqt-mt.so.3 
#9 0x04e5e00d in QApplication::internalNotify () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#10 0x04e5dafc in QApplication::notify () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#11 0x0069837d in MythMainWindow::customEvent () from
/usr/lib/libmyth-0.19.so.0
#12 0x04eb9e92 in QObject::event () from /usr/lib/qt-3.3/lib/libqt-mt.so.3 
#13 0x04ef43f2 in QWidget::event () from /usr/lib/qt-3.3/lib/libqt-mt.so.3 
#14 0x04e5e00d in QApplication::internalNotify () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#15 0x04e5d62f in QApplication::notify () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#16 0x04e5ef6e in QApplication::sendPostedEvents () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#17 0x04e5edfc in QApplication::sendPostedEvents () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#18 0x04e070b9 in QEventLoop::processEvents () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#19 0x04e708ef in QEventLoop::enterLoop () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#20 0x04e5e290 in QApplication::enter_loop () from
/usr/lib/qt-3.3/lib/libqt-mt.so.3
#21 0x0069973d in MythDialog::exec () from /usr/lib/libmyth-0.19.so.0 
#22 0x0806eec2 in main ()

(gdb) 

(gdb) c

Continuing.

Program received signal SIGINT, Interrupt.

[Switching to Thread -1208733568 (LWP 8089)]

0x00ba67a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Mike Schlottman
Sent: Monday, March 27, 2006 12:51 PM
To: Discussion about mythtv
Subject: [mythtv-users] Error was encountered while displaying video.

If I leave my knoppmyth box running while I'm not watching it, I will
eventually

 get the error "Error was encountered while displaying video".

I have not tried to narrow it down to happinging on certain channels, but
there

is a possability that the signal becomes weak or gets too much
interfierance.

Here is what I see in the myth backend log.

Code:

2006-03-26 17:22:26.545 Running HouseKeeping

2006-03-26 17:27:26.521 Running HouseKeeping

2006-03-26 17:30:01.014 Finished recording PGA Golf "The Players
Championship, F

inal Round": channel 1051

2006-03-26 17:30:01.310 TVRec(1): Enabling Full LiveTV UI.

2006-03-26 17:30:04.152 TVRec(1): RingBufferChanged()

2006-03-26 17:30:04.517 Finished recording NBC Nightly News: channel 1051

2006-03-26 17:30:04.545 Preview Error: Previewer file
'/myth/tv/1051_20060326173

000.mpg' is not valid.

2006-03-26 17:30:04.554 TVRec(1): Enabling Full LiveTV UI.

2006-03-26 17:30:04.571 Finished recording PGA Golf "The Players
Championship, F

inal Round": channel 1051

2006-03-26 17:30:04.593 TVRec(1): RingBufferChanged()

2006-03-26 17:30:04.611 Finished recording NBC Nightly News: channel 1051

2006-03-26 17:30:04.651 TFW, Error: Write() -- IOBOUND begin cnt(9400)
free(4147

)

2006-03-26 17:30:04.884 TFW, Error: Write() -- IOBOUND end

0: start_time: 4010.071 duration: 1619.950

1: start_time: 4010.025 duration: -9223372036854.775

stream: start_time: 44555.838 duration: 17999.954 bitrate=16683 kb/s

2006-03-26 17:30:06.879 AFD: Opened codec 0x8160e60, id(MPEG2VIDEO)
type(Video)

2006-03-26 17:30:06.883 AFD: Opened codec 0x8182da0, id(AC3) type(Audio)

2006-03-26 17:30:06.888 NVP: Recording does not have position map.

                        Run 'mythcommflag --file 1051_20060326123000.mpg
--rebui

ld' to fix

2006-03-26 17:30:07.492 TVRec(1): Changing from WatchingLiveTV to None

2006-03-26 17:30:07.820 Finished recording NBC Nightly News: channel 1051

2006-03-26 17:32:26.491 Running HouseKeeping

2006-03-26 17:37:26.462 Running HouseKeeping

I have also begun re-starting mythfrontend using nohup so I can catch the
output

 even when X get's tired of logging. Here is the output from mythfrontend.

Code:

2006-03-26 17:15:03.216 NVP: prebuffering pause

2006-03-26 17:15:40.520 NVP: prebuffering pause

2006-03-26 17:17:02.402 rebuffering (28001 32768)

2006-03-26 17:29:29.894 NVP: prebuffering pause

2006-03-26 17:30:01.703 NVP: prebuffering pause

2006-03-26 17:30:01.813 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 10 retries
remaining.

2006-03-26 17:30:02.316 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 9 retries
remaining.

2006-03-26 17:30:02.818 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 8 retries
remaining.

2006-03-26 17:30:03.177 NVP: Prebuffer wait timed out 10 times.

2006-03-26 17:30:03.442 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 7 retries
remaining.

2006-03-26 17:30:03.957 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 6 retries
remaining.

2006-03-26 17:30:04.459 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 5 retries
remaining.

2006-03-26 17:30:04.679 NVP: Prebuffer wait timed out 10 times.

2006-03-26 17:30:04.962 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 4 retries
remaining.

2006-03-26 17:30:05.464 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 3 retries
remaining.

2006-03-26 17:30:05.965 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 2 retries
remaining.

2006-03-26 17:30:06.180 NVP: Prebuffer wait timed out 10 times.

2006-03-26 17:30:06.467 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 1 retries
remaining.

2006-03-26 17:30:06.972 RingBuf(/myth/tv/1051_20060326173000.mpg): Invalid
file

(fd 16) when opening '/myth/tv/1051_20060326173000.mpg'. 0 retries
remaining.

2006-03-26 17:30:07.474 NVP, Error: SwitchToProgram's OpenFile failed.

2006-03-26 17:30:07.482 NVP, Error: Unknown error, exiting decoder

2006-03-26 17:30:07.485 TV: Attempting to change from WatchingLiveTV to None

If I select OK. I get kicked back to the menu and everything is fine. I
guess th

is messages is a new feature to deal with some of the instabilities of
mythfront

end or the plugins.