I had intermittent problems with sound and it turned out the card was overheating, If you have a small case make sure the airflow round the card is good and put a fan in if necessary.
Mark Staudinger wrote:
I have a PVR250 model 980 (tuner type 39) running in a MSI Hermes (845GV) box. SuSE-based linux installation with kernel 2.4.24, and ivtv-0.1.9. Recording done with MythTV 0.16. I'm using the 'recommended' 1.18.21.22252.inf PVR firmware when building the ivtv module.
Every so often (could be a day, could be a week) a recording will be distorted, and all subsequent recordings have the same distortion until a hard (full power-off) boot is performed. The distortion is not confined to a particular resolution or channel.
The distortion is shown as wavy vertical lines in lower resolutions (320x240), or as blue artifacts and general blockiness at higher resolutions. This is the log prior to my last bad recording (last night).
Feb 8 18:59:52 localhost kernel: saa7115[0]: decoder set norm NTSC Feb 8 18:59:52 localhost kernel: saa7115[0] set audio: 0x02 Feb 8 18:59:52 localhost kernel: saa7115[0]: decoder set picture bright=137 contrast=70 saturation=41 hue=0 Feb 8 18:59:52 localhost kernel: saa7115[0]: decoder set picture bright=137 contrast=70 saturation=51 hue=0 Feb 8 18:59:52 localhost kernel: saa7115[0]: decoder set picture bright=158 contrast=70 saturation=51 hue=0 Feb 8 18:59:53 localhost last message repeated 5 times Feb 8 18:59:53 localhost kernel: saa7115[0]: decoder set size Feb 8 18:59:53 localhost kernel: Hpsc: 0x00001, Hfsc: Feb 8 19:07:02 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:07:02 localhost kernel: ivtv: i_flags=0 Feb 8 19:18:14 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:18:14 localhost kernel: ivtv: i_flags=0 Feb 8 19:24:13 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:24:13 localhost kernel: ivtv: i_flags=0 Feb 8 19:37:02 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:37:02 localhost kernel: ivtv: i_flags=0 Feb 8 19:37:54 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:37:54 localhost kernel: ivtv: i_flags=0 Feb 8 19:37:59 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:37:59 localhost kernel: ivtv: i_flags=0 Feb 8 19:44:47 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:44:47 localhost kernel: ivtv: i_flags=0 Feb 8 19:57:35 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:57:35 localhost kernel: ivtv: i_flags=0 0x00600 Feb 8 18:59:53 localhost kernel: Vsrc: 480, Vscy: 0x00537 Feb 8 18:59:54 localhost kernel: saa7115[0]: decoder disable output Feb 8 18:59:54 localhost kernel: saa7115[0]: decoder enable output Feb 8 19:03:52 localhost kernel: ivtv: Got DMA-done, but not expecting one Feb 8 19:03:52 localhost kernel: ivtv: i_flags=0
Next recording following the reboot shows this:
Feb 8 21:29:51 localhost kernel: saa7115[0]: decoder set norm NTSC Feb 8 21:29:51 localhost kernel: saa7115[0] set audio: 0x02 Feb 8 21:29:51 localhost kernel: saa7115[0]: decoder set picture bright=137 contrast=63 saturation=41 hue=0 Feb 8 21:29:52 localhost last message repeated 7 times Feb 8 21:29:52 localhost kernel: saa7115[0]: decoder set size Feb 8 21:29:52 localhost kernel: Hpsc: 0x00001, Hfsc: 0x00780 Feb 8 21:29:52 localhost kernel: Vsrc: 480, Vscy: 0x0070f Feb 8 21:29:52 localhost kernel: saa7115[0]: decoder set size Feb 8 21:29:52 localhost kernel: Hpsc: 0x00002, Hfsc: 0x00417 Feb 8 21:29:52 localhost kernel: Setting full NTSC height Feb 8 21:29:52 localhost kernel: saa7115[0]: decoder disable output Feb 8 21:29:52 localhost kernel: saa7115[0]: decoder enable output
I'd welcome any tips on debugging further or possible solutions if this is a known issue. I haven't seen much on the list about this particular problem, though.
Thanks, Mark
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