<br><br><div><span class="gmail_quote">On 6/9/07, <b class="gmail_sendername">Alexander Saers</b> <<a href="mailto:alex@saers.com">alex@saers.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hello everybody<br><br>I have been searching the web for clues for a while now but cant find any.<br>I got a problem only when watching or playing hdtv recordings (720) in<br>mythtv. My setup is the following<br><br>Computer
<br>ASUS M2NVP-VX<br>AMD 64 X2 3600+ 65W thing<br>2GB of memory<br>Using onboard nvidia 6150 card with DVI to a LCD (1280x1024) in res<br>Onboard soundcard intel-hda<br>SATA2 discs<br>Twinhan DVB-C (2033) Mantis based capture card
<br><br>OS<br>Gentoo Linux running ~x86<br>kernel 2.6.20<br>using mythtv-0.20.1_p13344<br><br>The problem is when Im using the Swedish Comhem cable network and are<br>watching SVT-HD channel (that are the only channel i have that are HD
<br>right now). All other channels work just fine :)<br><br>Here are the output of mythfrontend when i start mythtv and start watching<br>SVT-HD and then exit again.<br><br><snip><br>mythtv@mythbox ~ $ mythfrontend<br>
2007-06-09 21:17:25.692 Using runtime prefix = /usr<br>2007-06-09 21:17:25.701 DPMS is active.<br>2007-06-09 21:17:25.739 New DB connection, total: 1<br>2007-06-09 21:17:25.751 Connected to database 'mythconverg' at host:
<br>localhost<br>2007-06-09 21:17:25.754 Total desktop dim: 1280x1024, with 1 screen[s].<br>2007-06-09 21:17:25.760 Using screen 0, 1280x1024 at 0,0<br>2007-06-09 21:17:25.773 Current Schema Version: 1188<br>2007-06-09 21:17:
25.775 Newest Schema Version : 1160<br>2007-06-09 21:17:25.776 New DB connection, total: 2<br>2007-06-09 21:17:25.776 Connected to database 'mythconverg' at host:<br>localhost<br>2007-06-09 21:17:25.777 Setting Lock for Database Schema upgrade. If you
<br>see a long pause here it means the Schema is already locked and is being<br>upgraded by another Myth process.<br>2007-06-09 21:17:25.778 New DB connection, total: 3<br>2007-06-09 21:17:25.779 Connected to database 'mythconverg' at host:
<br>localhost<br>2007-06-09 21:17:25.781 Database Schema upgrade complete, unlocking.<br>2007-06-09 21:17:25.781 mythfrontend version: 0.20.20060828-4<br><a href="http://www.mythtv.org">www.mythtv.org</a><br>2007-06-09 21:17:
25.781 Enabled verbose msgs: important general<br>2007-06-09 21:17:26.314 Connecting to lcd server: localhost:6545 (try 1 of<br>10)<br>2007-06-09 21:17:27.125 Total desktop dim: 1280x1024, with 1 screen[s].<br>2007-06-09 21:17:
27.128 Using screen 0, 1280x1024 at 0,0<br>2007-06-09 21:17:27.130 Switching to wide mode (blootube-wide)<br>2007-06-09 21:17:27.157 Using the OpenGL painter<br>2007-06-09 21:17:28.290 Loading from:<br>/usr/share/mythtv/themes/blootube-wide/base.xml
<br>2007-06-09 21:17:28.321 Loading from:<br>/usr/share/mythtv/themes/default/base.xml<br>2007-06-09 21:17:28.403 Registering Internal as a media playback plugin.<br>2007-06-09 21:17:28.425 Registering MythDVD DVD Media Handler as a media
<br>handler ext()<br>2007-06-09 21:17:28.427 Registering MythDVD VCD Media Handler as a media<br>handler ext()<br>2007-06-09 21:17:28.505 Using NV NPOT texture extension<br>2007-06-09 21:17:28.667 Registering MythMusic Media Handler 1/2 as a media
<br>handler ext()<br>2007-06-09 21:17:28.668 Registering MythMusic Media Handler 2/2 as a media<br>handler ext(ogg,mp3,aac,flac)<br>2007-06-09 21:18:04.626 Connecting to backend server: <a href="http://127.0.0.1:6543">127.0.0.1:6543
</a> (try<br>1 of 5)<br>2007-06-09 21:18:04.629 Using protocol version 31<br>2007-06-09 21:18:05.373 TV: Attempting to change from None to<br>WatchingLiveTV<br>2007-06-09 21:18:05.374 Using protocol version 31<br>2007-06-09 21:18:
06.148 DPMS Deactivated<br>2007-06-09 21:18:06.181 NVP: Disabling Audio, params(-1,2,44100)<br>2007-06-09 21:18:06.206 VideoOutputXv: XvMCTex: Init failed<br>2007-06-09 21:18:06.207 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
<br>Texture'<br>X Error: BadMatch (invalid parameter attributes) 8<br> Major opcode: 142<br> Minor opcode: 14<br> Resource id: 0x1d6<br>2007-06-09 21:18:06.880 TV: Changing from None to WatchingLiveTV<br>2007-06-09 21:18:
06.882 Realtime priority would require SUID as root.<br>2007-06-09 21:18:06.984 Video timing method: USleep with busy wait<br>2007-06-09 21:18:10.196 VideoOutputXv: XvMCTex: Init failed<br>2007-06-09 21:18:10.197 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
<br>Texture'<br>X Error: BadMatch (invalid parameter attributes) 8<br> Major opcode: 142<br> Minor opcode: 14<br> Resource id: 0x1d6<br>2007-06-09 21:18:10.855 AFD: Opened codec 0x83e78a0, id(H264) type(Video)<br>
2007-06-09 21:18:10.894 AFD: Opened codec 0x83efa30, id(MP3) type(Audio)<br>2007-06-09 21:18:10.896 AFD: Opened codec 0x8474cd0, id(AC3) type(Audio)<br>2007-06-09 21:18:10.896 AFD: Opened codec 0x8444c00, id(DVB_SUBTITLE)
<br>type(Subtitle)<br>2007-06-09 21:18:10.897 AFD: Opened codec 0x83ee4e0, id(DVB_SUBTITLE)<br>type(Subtitle)<br>2007-06-09 21:18:10.918 Opening OSS audio device '/dev/dsp'.<br>Unable to open mixer: ''<br>
2007-06-09 21:18:10.925 NVP: Enabling Audio<br>2007-06-09 21:18:11.532 NVP: Prebuffer wait timed out 10 times.<br>2007-06-09 21:18:12.424 NVP: prebuffering pause<br>2007-06-09 21:18:13.320 NVP: prebuffering pause<br>2007-06-09 21:18:
27.144 NVP: prebuffering pause<br>2007-06-09 21:18:28.356 NVP: prebuffering pause<br>2007-06-09 21:18:29.489 NVP: prebuffering pause<br>2007-06-09 21:18:30.291 NVP: prebuffering pause<br>2007-06-09 21:18:31.308 NVP: prebuffering pause
<br>2007-06-09 21:18:32.776 NVP: prebuffering pause<br>2007-06-09 21:18:33.714 NVP: prebuffering pause<br>2007-06-09 21:18:34.622 NVP: prebuffering pause<br>2007-06-09 21:18:35.524 NVP: prebuffering pause<br>2007-06-09 21:18:
36.416 NVP: prebuffering pause<br>2007-06-09 21:18:36.592 TV: Attempting to change from WatchingLiveTV to<br>None<br>2007-06-09 21:18:39.415 TV: Changing from WatchingLiveTV to None<br>2007-06-09 21:18:39.439 DPMS Reactivated.
<br></snip><br><br>As you can see i get a lot of NVP: prebuffering pause. Anyone know why?<br><br>One more interesting thing is that when playing an already caputred file<br>in mythtv it is still skippy. But when playing it with mplayer it works
<br>very well. The picture is also only skippy when the picture on the screen<br>is changing much?<br><br>Is the hardware sufficent? Whats wrong. Any hints are welcome ;)<br><br>I found a simular Ticket on mythtv.<br><a href="http://www.gossamer-threads.com/lists/mythtv/commits/186593">
http://www.gossamer-threads.com/lists/mythtv/commits/186593</a><br>But it was closed. It was speculating about the feeding algorithm that<br>could support why the screen is only skipping/pausing when the screen<br>change much -> high bitrate.
<br><br>Anyone? Any clues?<br><br>Br<br>Alexander</blockquote><div><br>I found that compiling the latest Nvidia drivers from sources fixed my prebuffering pauses. I run Ubuntu and just used the Envy appilication.<br><br>
TK <br></div><br></div><br>