[mythtv-users] Frontend locking/freezing on FF on SD/HD content

[Nathan Allworth]

Hi all.

I've got MythTV 0.20 setup on Gentoo. Occasionally the front end will 
lockup while fast forwarding, generally this occurs when skipping "in to 
the future", that is ff'ing into and past the end of the recorded 
program. The only seems to happen in LiveTV, at least it's never reared 
it's head during recorded programs.

This is with sticky fast-forward.

This is what mythfrontend continually pukes into the log when it freezes 
playback. Sometimes it'll "unfreeze" once we've caught up to wherever in 
the future it's FF'd to, if that happens myth won't accept any keyboard 
input and must be killed and started again. I don't have any 
'mythfrontend -v playback' output at this time, but I'll try and get 
some. We're using the "Standard" mpeg decoder, and a PVR-150MCE card.

2006-10-04 09:55:28.195 WriteAudio: buffer underrun
2006-10-04 09:55:28.676 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:29.008 Waited too long for video out to pause
2006-10-04 09:55:29.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:29.766 Waited too long for decoder to pause
2006-10-04 09:55:30.036 Waited too long for video out to pause
2006-10-04 09:55:30.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:31.046 Waited too long for video out to pause
2006-10-04 09:55:31.647 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:32.056 Waited too long for video out to pause
2006-10-04 09:55:32.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:33.066 Waited too long for video out to pause
2006-10-04 09:55:33.651 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:33.776 Waited too long for decoder to pause
2006-10-04 09:55:34.076 Waited too long for video out to pause
2006-10-04 09:55:34.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:35.086 Waited too long for video out to pause
2006-10-04 09:55:35.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:36.096 Waited too long for video out to pause
2006-10-04 09:55:36.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:37.106 Waited too long for video out to pause
2006-10-04 09:55:37.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:37.786 Waited too long for decoder to pause
2006-10-04 09:55:38.116 Waited too long for video out to pause
2006-10-04 09:55:38.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:39.126 Waited too long for video out to pause
2006-10-04 09:55:39.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:40.136 Waited too long for video out to pause
2006-10-04 09:55:40.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:41.146 Waited too long for video out to pause
2006-10-04 09:55:41.646 NVP: Prebuffer wait timed out 10 times.
2006-10-04 09:55:41.796 Waited too long for decoder to pause
2006-10-04 09:55:42.156 Waited too long for video out to pause

Software:
-Gentoo 2006.1
-Linux 2.6.18-gentoo (using built-in DVB drivers for pcHDTV card)
-MythTV: Gentoo-Portage version: media-tv/mythtv-0.20_p11281 (machine is 
both a frontend and backend)
-ffmpeg: media-video/ffmpeg-0.4.9_p20060530
-gcc (GCC) 4.1.1 (Gentoo 4.1.1)
-ivtv 0.8, built from sources on ivtv website, since portage doesn't 
have it yet
-XFCE 4.2
-LIRC 0.8.0, with lirc_streamzap

Hardware:
-ASUSTeK Computer Inc. K8N4-E Mainboard
-Non-OC'd AMD Athlon(tm) 64 Processor 3200+ Venice
-1gb Crucial DDR400 RAM
-Hercules Game Theater XP (Cirrus Logic CS 4614/22/24/30)
-nVidia Corporation NV43 [GeForce 6600 GT] (rev a2) (w/nvidia driver)
-pcHDTV 5500 (Conexant CX23880/1/2/3 PCI Video and Audio Decoder)
-Hauppauge computer works Inc. WinTV PVR 150 (Internext Compression Inc 
iTVC16 (CX23416) MPEG-2 Encoder (rev 01))
-250GB Western Digital Caviar

Thanks for any help, this is starting to get annoying. I just recently 
formatted and rebuilt Gentoo on this machine after some upgrades to 
support HD playback/recording, and this problem was prevalent even 
before the rebuild. It's occurred since the 0.17 version we started with 
well over a year and half ago, and has persisted through 0.18, 0.19 and 
now 0.20.

__
Nathan