Hi,

I am having a problem with recording from the PVR-350 tuner with mythtv.
It only records the first 20 frames or so (a bit less than a second of video). Then these 20 frames are recorded again and again for as long as the recording is scheduled.

This seems to me to be a problem with the PVR-350 hardware encoder that I am using. Am I recording the same GOP (Group of Pictures) over and over again ?

I have searched this forum thoroughly on the subject but nobody seems to be experiencing any recording problems.

My setup:
Old PIII-566 systems with 256 MB RAM, 40G HDD
PVR-350
Knoppmyth R5A30.2
ivtv version 0.4.0
X windows TV-out enabled via script R5Alpha30.2-pvr350.pl and working.

The PVR-350 hardware is OK as I can record fine with the same setup running Windows.
I am also able to record video using the PVR-350 from the command line with:
cat /dev/video0 > test.mpg
The video recorded this way plays back just fine with mplayer.

The problem only occurs when recording in mythtv. I have tried all the different methods I could come up with:
-pressing record while watching Live TV
-scheduling a recording with the EPG
-schedulling a manual recording

The ivtv driver seems to initialise OK:
ivtv: ==================== START INIT IVTV ====================
Feb 26 08:22:11 mythtv kernel: ivtv: version 0.4.0 (tagged release) loading
Feb 26 08:22:11 mythtv kernel: ivtv: Linux version: 2.6.13.2-chw-3 SMP preempt 586 gcc-3.3
Feb 26 08:22:11 mythtv kernel: ivtv: In case of problems please include the debug info
Feb 26 08:22:11 mythtv kernel: ivtv: between the START INIT IVTV and END INIT IVTV lines when
Feb 26 08:22:11 mythtv kernel: ivtv: mailing the ivtv-devel mailinglist.
Feb 26 08:22:11 mythtv kernel: ivtv0: Autodetected WinTV PVR 350 card (iTVC15 based)
Feb 26 08:22:11 mythtv kernel: ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
Feb 26 08:22:11 mythtv kernel: ACPI: PCI Interrupt 0000:01:08.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
Feb 26 08:22:11 mythtv kernel: tuner (ivtv): chip found at addr 0xc2 i2c-bus ivtv i2c driver #0
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
Feb 26 08:22:11 mythtv kernel: msp34xx: ivtv version
Feb 26 08:22:11 mythtv kernel: msp34xx: init: chip=MSP3418W-B3, has NICAM support, simple (D) mode, simpler (G) no-thread mod
e
Feb 26 08:22:11 mythtv kernel: msp34xx: $Id$ compiled on: Oct 9 2005 22:52:16
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=MSP3418W-B3, addr=40]
Feb 26 08:22:11 mythtv kernel: saa7115 0-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=saa7115, addr=21]
Feb 26 08:22:11 mythtv kernel: tveeprom: ivtv version
Feb 26 08:22:11 mythtv kernel: tveeprom: Hauppauge: model = 48139, rev = K257, serial# = 8260703
Feb 26 08:22:11 mythtv kernel: tveeprom: tuner = Philips FM1216 ME MK3 (idx = 57, type = 38)
Feb 26 08:22:11 mythtv kernel: tveeprom: tuner fmt = PAL(B/G) PAL(I) SECAM(L/L') PAL(D/K) (eeprom = 0x74, v4l2 = 0x00400e17)
Feb 26 08:22:11 mythtv kernel: tveeprom: audio processor = MSP4418 (type = 19)
Feb 26 08:22:11 mythtv kernel: tveeprom: decoder processor = SAA7115 (type = 13)
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
Feb 26 08:22:11 mythtv kernel: saa7127 0-0044: saa7129 found @ 0x88 (ivtv i2c driver #0)
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=saa7127, addr=44]
Feb 26 08:22:11 mythtv kernel: tda9885/6/7: (ivtv) chip found @ 0x86
Feb 26 08:22:11 mythtv kernel: ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
Feb 26 08:22:11 mythtv kernel: ivtv0: loading /lib/modules/ivtv-fw-enc.bin
Feb 26 08:22:11 mythtv kernel: ivtv0: loading /lib/modules/ivtv-fw-dec.bin
Feb 26 08:22:11 mythtv kernel: ivtv0: Encoder revision: 0x02040011
Feb 26 08:22:11 mythtv kernel: ivtv0: Decoder revision: 0x02020023
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA encoder YUV stream: 161 x 12960 buffers (2048KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA encoder VBI stream: 80 x 26208 buffers (2048KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Create encoder radio stream
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA decoder MPEG stream: 16 x 65536 buffers (1024KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA decoder VBI stream: 512 x 2048 buffers (1024KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: Create decoder VOUT stream
Feb 26 08:22:11 mythtv kernel: ivtv0: Allocate DMA decoder YUV stream: 20 x 51840 buffers (1024KB total)
Feb 26 08:22:11 mythtv kernel: ivtv0: loading /lib/modules/ivtv_init_mpeg.bin
Feb 26 08:22:11 mythtv kernel: tuner: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3)) by ivtv i2c driver #0
Feb 26 08:22:11 mythtv kernel: ivtv0: Initialized WinTV PVR 350, card #0
Feb 26 08:22:11 mythtv kernel: ivtv: ==================== END INIT IVTV ====================

Do you guys have any suggestions on where to start looking for a solution ?

Thanks alot

are there any errors or clues showing up in:

/var/log/messages
/var/log/mythtv/mythbackend.log
/var/log/mysql/mysql.err
/var/log/mysql/mysql.log
/var/log/XFree86.0.log

Check the md5sum values on your firmware. I'd suggest following the ivtv 0.4.3 upgrade procedures on the wiki simply becasue it includes installing new firmware and doing this check. http://www.knoppmythwiki.org/index.php?page=CompileIvtv