[mythtv-users] Live-tv stutter with PVR 500 mythtv 0.20, ivtv 0.10.1

[Bert Haverkamp]

Hello all,

I just assembled my new PVR:
EPIA EX10000EG, PRV 500.
I'm running debian, kernel 2.6.20, ivtv 0.10.1, mythtv 0.20,
openchrome cvs rev330.

All works well, except for live-tv and tv-recording. (minor detail;-)
All recording from the PVR500 stutters about every few seconds visibly.
It looks like the video is playing slightly too fast and then pauses
to wait for new data.

I tried disabling VBI, increasing the IDE pci latency_timer to 176.
Nothing seems to help. DVDs play smoothly and recording with cat
/dev/video[01] works well too.

What can be causing this? I am out of options right now..

Regards,

Bert


Here are the log recordings:
ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.10.1 (tagged release) loading
ivtv:  Linux version: 2.6.20-1-686 SMP mod_unload 686
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected Hauppauge card (cx23416 based)
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv0: Encoder revision: 0x02060039
ivtv0: Autodetected WinTV PVR 500 (unit #1)
tuner 0-0043: chip found @ 0x86 (ivtv i2c driver #0)
tuner 0-0060: chip found @ 0xc0 (ivtv i2c driver #0)
tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
cx25840 0-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: Registered device video0 for encoder MPEG (4 MB)
ivtv0: Registered device video32 for encoder YUV (2 MB)
ivtv0: Registered device vbi0 for encoder VBI (1 MB)
ivtv0: Registered device video24 for encoder PCM audio (1 MB)
ivtv0: Registered device radio0 for encoder radio
ivtv0: Initialized WinTV PVR 500 (unit #1), card #0
ivtv:  ======================  NEXT CARD  ======================
ivtv1: Autodetected Hauppauge card (cx23416 based)
ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
ivtv1: loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
ivtv1: Encoder revision: 0x02060039
tuner 1-0043: chip found @ 0x86 (ivtv i2c driver #1)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #1)
cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #1)
ivtv1: Correcting tveeprom data: no radio present on second unit
ivtv1: Autodetected WinTV PVR 500 (unit #2)
ivtv1: Registered device video1 for encoder MPEG (4 MB)
ivtv1: Registered device video33 for encoder YUV (2 MB)
ivtv1: Registered device vbi1 for encoder VBI (1 MB)
ivtv1: Registered device video25 for encoder PCM audio (1 MB)
ivtv1: Initialized WinTV PVR 500 (unit #2), card #1
ivtv:  ====================  END INIT IVTV  ====================

logs from mythfrontend:
2007-05-14 09:58:32.449 TV: Attempting to change from None to WatchingLiveTV
2007-05-14 09:58:32.581 Using protocol version 31
2007-05-14 09:58:34.264 DPMS Deactivated
[mpeg @ 0xb73387f0]Parser not found for Codec Id: 94210 !
2007-05-14 09:58:34.992 AFD: Opened codec 0xa89fd90, id(MPEG2VIDEO) type(Video)
2007-05-14 09:58:34.992 AFD: Opened codec 0xbad4ba0, id(MP2) type(Audio)
2007-05-14 09:58:35.181 Opening ALSA audio device 'default'.
2007-05-14 09:58:35.229 Mixer unable to find control Master
2007-05-14 09:58:35.230 Mixer unable to find control Master
2007-05-14 09:58:35.289 VideoOutputXv: XvMCTex: Init failed
2007-05-14 09:58:35.299 VideoOutputXv: XVideo Adaptor Name: 'XV_SWOV'
2007-05-14 09:58:37.585 Realtime priority would require SUID as root.
2007-05-14 09:58:37.588 TV: Changing from None to WatchingLiveTV
2007-05-14 09:58:37.635 Video timing method: DRM
2007-05-14 09:58:40.558 NVP: prebuffering pause
2007-05-14 09:58:41.198 NVP: prebuffering pause
2007-05-14 09:58:41.798 NVP: prebuffering pause
2007-05-14 09:58:42.238 NVP: prebuffering pause
2007-05-14 09:58:42.718 NVP: prebuffering pause
2007-05-14 09:58:43.221 NVP: prebuffering pause
2007-05-14 09:58:43.702 NVP: prebuffering pause
2007-05-14 09:58:44.228 NVP: prebuffering pause
2007-05-14 09:58:44.678 NVP: prebuffering pause
2007-05-14 09:58:45.159 NVP: prebuffering pause
2007-05-14 09:58:45.582 NVP: prebuffering pause
2007-05-14 09:58:46.102 NVP: prebuffering pause
2007-05-14 09:58:46.639 NVP: prebuffering pause
2007-05-14 09:58:47.079 NVP: prebuffering pause
2007-05-14 09:58:47.559 NVP: prebuffering pause
2007-05-14 09:58:48.039 NVP: prebuffering pause
2007-05-14 09:58:48.544 NVP: prebuffering pause
2007-05-14 09:58:48.999 NVP: prebuffering pause
2007-05-14 09:58:50.039 NVP: prebuffering pause
2007-05-14 09:58:50.943 NVP: prebuffering pause

-- 

-----------------------------------------------
Bert en Selena
www.bertenselena.net
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Only two things are infinite:
human stupidity and the universe,
and I'm not sure about the latter.
   Albert Einstein
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