[mythtvnz] Pixellation Every ~ 20 minutes

Wed Oct 17 10:37:10 BST 2012

> Have just watched a one hour recording using mediaportal on win 7. Look
ma
> - no pixels! Will next try a fresh mythbuntu install on a spare hd.
> Hopefully my usb tuner will arrive tomorrow for further diagnosis options
> (eg. hvr-2210 card linux drivers).

Further update:

Just installed mythbuntu 12.10 (11 October build) with myth 0.26. Same
hardware as the first posting/email.

Same pixellation at the 32 minute mark. Switching channel from TV3 to TV4 -
TV4 pixellated too. Here is the frontend terminal output just before the
pixels started up:

2012-10-17 22:20:00.979510 N  Player(0): Waited 101ms for video buffers
AAAAAAAAAAALLLLL
2012-10-17 22:20:48.219065 N  Player(0): Waited 100ms for video buffers
AAAAALAAALLALAAL
2012-10-17 22:20:51.707741 N  Player(0): Waited 104ms for video buffers
ALAAAAALLAALALAA
2012-10-17 22:23:09.504079 E  AFD: Unknown audio decoding error
2012-10-17 22:23:22.144166 E  AFD: Unknown audio decoding error
2012-10-17 22:23:27.305326 E  AFD: Unknown audio decoding error
2012-10-17 22:23:28.745263 E  AFD: Unknown audio decoding error
2012-10-17 22:23:31.584643 E  AFD: Unknown audio decoding error
2012-10-17 22:23:40.104728 E  AFD: Unknown audio decoding error
2012-10-17 22:23:41.985342 E  AFD: Unknown audio decoding error
2012-10-17 22:23:42.544668 E  AFD: Unknown audio decoding error
2012-10-17 22:23:42.904375 E  AFD: Unknown audio decoding error
2012-10-17 22:23:46.384247 E  AFD: Unknown audio decoding error
2012-10-17 22:23:48.064891 E  AFD: Unknown audio decoding error
2012-10-17 22:23:48.665241 E  AFD: Unknown audio decoding error
2012-10-17 22:23:48.825233 E  AFD: Unknown audio decoding error
2012-10-17 22:23:49.344197 E  AFD: Unknown audio decoding error
2012-10-17 22:23:50.184505 E  AFD: Unknown audio decoding error
2012-10-17 22:23:50.944409 E  AFD: Unknown audio decoding error
2012-10-17 22:23:51.425585 E  AFD: Unknown audio decoding error
2012-10-17 22:23:53.305144 E  AFD: Unknown audio decoding error
2012-10-17 22:23:53.824297 E  AFD: Unknown audio decoding error
2012-10-17 22:23:54.463901 E  AFD: Unknown audio decoding error
2012-10-17 22:23:55.145160 E  AFD: Unknown audio decoding error
2012-10-17 22:23:55.404487 E  AFD: Unknown audio decoding error
2012-10-17 22:23:56.035229 E  AFD: Unknown audio decoding error
2012-10-17 22:23:56.424501 E  AFD: Unknown audio decoding error
2012-10-17 22:23:56.784154 E  AFD: Unknown audio decoding error
2012-10-17 22:23:57.984499 E  AFD: Unknown audio decoding error
2012-10-17 22:23:58.225499 E  AFD: Unknown audio decoding error
2012-10-17 22:23:59.383988 E  AFD: Unknown audio decoding error
2012-10-17 22:24:00.424764 E  AFD: Unknown audio decoding error
2012-10-17 22:24:01.265216 E  AFD: Unknown audio decoding error
2012-10-17 22:24:03.105642 E  AFD: Unknown audio decoding error
2012-10-17 22:24:04.464256 E  AFD: Unknown audio decoding error
2012-10-17 22:24:04.545687 E  AFD: Unknown audio decoding error
2012-10-17 22:24:04.624628 E  AFD: Unknown audio decoding error
2012-10-17 22:24:05.824173 E  AFD: Unknown audio decoding error
2012-10-17 22:24:06.345676 E  AFD: Unknown audio decoding error
2012-10-17 22:24:06.972382 E  AFD: Unknown audio decoding error
2012-10-17 22:24:08.872834 E  AFD: Unknown audio decoding error
2012-10-17 22:24:10.224886 E  AFD: Unknown audio decoding error
2012-10-17 22:24:10.266117 E  AFD: Unknown audio decoding error
2012-10-17 22:24:10.425498 E  AFD: Unknown audio decoding error
2012-10-17 22:24:11.664599 E  AFD: Unknown audio decoding error
2012-10-17 22:24:12.185447 E  AFD: Unknown audio decoding error
2012-10-17 22:24:12.384999 E  AFD: Unknown audio decoding error
2012-10-17 22:24:12.431152 E  AFD: Unknown audio decoding error
2012-10-17 22:24:12.785982 E  AFD: Unknown audio decoding error
2012-10-17 22:24:13.225371 E  AFD: Unknown audio decoding error
2012-10-17 22:24:14.304691 E  AFD: Unknown audio decoding error
2012-10-17 22:24:14.744525 E  AFD: Unknown audio decoding error
2012-10-17 22:24:14.984612 E  AFD: Unknown audio decoding error
2012-10-17 22:24:15.185045 E  AFD: Unknown audio decoding error
2012-10-17 22:24:15.424673 E  AFD: Unknown audio decoding error
2012-10-17 22:24:16.123807 W
 RingBuf(/home/mcmt/livetv/1004_20121017222415.mpg): Not starting read
ahead thread, already running
2012-10-17 22:24:16.430974 N  Player(0): Forcing decode extra audio option
on (Video method requires it).
2012-10-17 22:24:22.693606 I  VDPAU Painter: Clearing VDPAU painter cache.
2012-10-17 22:24:22.722396 W  MythPainter: 6 images not yet de-allocated.
2012-10-17 22:24:22.906818 I  VDPAU: Created 2 output surfaces.
2012-10-17 22:24:22.906832 I  VDPAU: Created VDPAU render device 1920x1080
2012-10-17 22:24:22.916074 N  Player(0): Forcing decode extra audio option
on (Video method requires it).
2012-10-17 22:24:22.916230 I  AFD: Opened codec 0x36ded50, id(H264)
type(Video)
2012-10-17 22:24:22.916237 I  AFD: codec AAC/LATM has 2 channels
2012-10-17 22:24:22.917214 I  AFD: Opened codec 0x5b999e0, id(AAC/LATM)
type(Audio)
2012-10-17 22:24:22.917242 I  AFD: Opened codec 0x5bc2880, id(DVB_SUBTITLE)
type(Subtitle)
2012-10-17 22:24:23.003039 I  AO: Opening audio device 'default:CARD=D2' ch
2(2) sr 48000 sf signed 32 bit reenc 0
2012-10-17 22:24:23.013933 N  AFD: Resetting byte context eof (livetv 1 was
eof 0)
2012-10-17 22:24:23.124657 I  VidOutVDPAU: Added 1 new buffers. New buffer
size 15 (3 decode and 12 process)
2012-10-17 22:24:23.130295 I  msg: On known multiplex...
2012-10-17 22:24:23.130791 I  msg: On known multiplex...
2012-10-17 22:24:23.145665 I  VDPAU: Added 2 output surfaces (total 4, max
4)
2012-10-17 22:24:23.213644 E  AFD: Unknown audio decoding error
2012-10-17 22:24:23.213650 E  AFD: Unknown audio decoding error
2012-10-17 22:24:23.856749 E  AFD: Unknown audio decoding error
2012-10-17 22:24:23.856758 E  AFD: Unknown audio decoding error
2012-10-17 22:24:24.164295 E  AFD: Unknown audio decoding error
2012-10-17 22:24:24.164303 E  AFD: Unknown audio decoding error
2012-10-17 22:24:24.963995 E  AFD: Unknown audio decoding error
2012-10-17 22:24:24.964004 E  AFD: Unknown audio decoding error
2012-10-17 22:24:25.128344 E  AFD: Unknown audio decoding error
2012-10-17 22:24:25.128352 E  AFD: Unknown audio decoding error
2012-10-17 22:24:25.164258 E  AFD: Unknown audio decoding error
2012-10-17 22:24:25.764360 E  AFD: Unknown audio decoding error
2012-10-17 22:24:25.803723 E  AFD: Unknown audio decoding error
2012-10-17 22:24:26.444317 E  AFD: Unknown audio decoding error
2012-10-17 22:24:26.444324 E  AFD: Unknown audio decoding error
2012-10-17 22:24:27.284743 E  AFD: Unknown audio decoding error
2012-10-17 22:24:27.284751 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.005280 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.005300 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.044200 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.084175 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.193548 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.194507 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.197133 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.882407 E  AFD: Unknown audio decoding error
2012-10-17 22:24:28.882421 E  AFD: Unknown audio decoding error
2012-10-17 22:24:31.969776 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.533618 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.533632 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.570226 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.609038 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.648708 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.827279 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.827293 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.968684 E  AFD: Unknown audio decoding error
2012-10-17 22:24:32.968964 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.004996 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.051126 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.229869 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.229954 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.269963 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.270324 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.283669 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.364321 E  AFD: Unknown audio decoding error
2012-10-17 22:24:33.404475 E  AFD: Unknown audio decoding error
2012-10-17 22:24:34.244033 E  AFD: Unknown audio decoding error
2012-10-17 22:24:34.244899 E  AFD: Unknown audio decoding error
2012-10-17 22:24:34.288811 E  AFD: Unknown audio decoding error
2012-10-17 22:24:34.807879 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.264987 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.265248 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.280503 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.283852 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.287356 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.364300 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.364316 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.484663 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.556477 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.556490 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.924322 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.924573 E  AFD: Unknown audio decoding error
2012-10-17 22:24:35.963760 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.208225 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.287602 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.658844 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.658853 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.969645 E  AFD: Unknown audio decoding error
2012-10-17 22:24:36.969854 E  AFD: Unknown audio decoding error
2012-10-17 22:24:37.160647 E  AFD: Unknown audio decoding error
2012-10-17 22:24:37.160654 E  AFD: Unknown audio decoding error
2012-10-17 22:24:37.909828 E  AFD: Unknown audio decoding error
2012-10-17 22:24:38.082731 E  AFD: Unknown audio decoding error
2012-10-17 22:24:38.094886 E  AFD: Unknown audio decoding error
2012-10-17 22:24:38.267493 N  Player(0): Waited 104ms for video buffers
DALAAALA AAdfAA
2012-10-17 22:24:38.268205 E  AFD: Unknown audio decoding error
2012-10-17 22:24:38.643885 E  AFD: Unknown audio decoding error
2012-10-17 22:24:38.868726 N  Player(0): Waited 103ms for video buffers
AAALDAAL AAAFdd
2012-10-17 22:24:38.972549 N  Player(0): Waited 207ms for video buffers
AAALDAAL AAAFdd
2012-10-17 22:24:39.010477 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.013874 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.196064 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.196310 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.381708 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.381722 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.388275 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.615835 I  TV: Attempting to change from WatchingLiveTV
to None
2012-10-17 22:24:39.716034 W  Player(0): Waited 100ms for decoder to pause
2012-10-17 22:24:39.812778 E  AFD: Unknown audio decoding error
2012-10-17 22:24:39.815869 I  VDPAU Painter: Clearing VDPAU painter cache.
2012-10-17 22:24:39.816770 W  MythPainter: 4 images not yet de-allocated.
2012-10-17 22:24:40.339215 I  TV: Changing from WatchingLiveTV to None
2012-10-17 22:24:40.339569 I  TV: Exiting main playback loop.

This it looks interesting, although it's many minutes before pixellation
(and could be a mythbuntu problem - since the audio sync was messed up).

2012-10-17 21:49:10.917663 I  AO: Opening audio device 'default:CARD=D2' ch
2(6) sr 48000 sf signed 32 bit reenc 0
2012-10-17 21:49:10.926675 E  ALSA: Setting hardware audio buffer size to
1536
2012-10-17 21:49:10.926974 E  ALSA: Error opening
/proc/asound/card1/pcm0p/sub0/prealloc: Permission denied.
2012-10-17 21:49:10.926987 E  ALSA: Try to manually increase audio buffer
with: echo 1536 | sudo tee /proc/asound/card1/pcm0p/sub0/prealloc
2012-10-17 21:49:10.927004 E  ALSA: Unable to sufficiently increase ALSA
hardware buffer size - underruns are likely

Time to head back to the Arch installation and see what the frontend output
looks like....
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