On Tuesday 17 January 2006 07:29, scott wrote:
> tried some more stuff tonight in attempt to get to the bottom of this
> thing. here's what i know:
>
> - tried removing 2nd tuner (pvr-250) from system. now using only
> pvr-350 w/ tv-out. no change in ch. 9 reception - tried disabling
> pvr-350 hw mpeg decode, no change.
> - tried disabling pvt-350 tv-out and used computer monitor instead.
> still no change.
>
> finally, i took my pvr-250 and threw it in my windows box. after
> loading windows drivers and apps, viola! ch. 9 comes in loud and
> clear. i am forced to conclude from these finding that i have an
> ivtv driver issue. could it be that i need to use a different tuner
> type? tveeprom reports tuner type 2 (see below), but could it be
> wrong? any ideas?
What is the frequency of channel 9 in MHz? I wonder if the tuner
definition for the two tuners is correct.
Hans
>
> --scott
>
> ----- Original Message ----
> Date: Thu, 12 Jan 2006 19:32:13 -0800 (PST)
> From: scott <[EMAIL PROTECTED]>
> Subject: [ivtv-users] bad reception on only one channel. Help!
> To: [email protected]
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="us-ascii"
>
> I'm having a single-channel reception problem, and am hoping some
> genius out there might have some suggestions on how I could resolve
> it.
>
> I have a dual tuner system with a pvr-250 and a 350 running
> KnoppMyth, and am using the 350's tv-out. All channels come in fine
> except channel 9, which just happens to be NBC. I can't live without
> scrubs, so I'd like to get this resolved. If I can do that, i can
> cancel my tivo service and move over to mythtv permanently!
>
> Channel 9 is getting some "rainbow" colored interference that spans
> the range from annoying to uwatchable. A pic of the problemcan be
> found here. It happens all over the screen, although my photo only
> captured part of it in that instant.
>
> here's what I know already:
> - signal strength from the cable line in to my apartment is very
> strong - Tivo and my TV do not exhibit the problem
> - both tuners (250 and 350) exhibit the problem
> - both tuners are the same type (type 2)
>
> here's what I've tried already, with no luck:
> - replace all splitters, cables
> - run direct line from primary cable drop to a single pvr tuner
> input - tried mythbox at a friend's house
> - upgrade mythtv
> - upgrade ivtv driver
> - fine-tune reception from setup
> - run extra ground lines from mythbox to various places
> - isolate mythbox chassis ground (i know i know, its dangerous)
> - searched ivtv-dev forum (no luck)
> - searched mythtv users/dev forums (no luck)
>
> here are my system specs:
> KnoppMyth R5A26 (Knoppix based)
> Athlon XP 2200+
> Soyo K7VME Motherboard (KM400 chipset)
> 512 megs RAM
> 200 Gb Seagate baracude IV 7200 RPM HD
> PVR-250, PVR-350
> 250-watt microATX seasonic power supply
>
> Anyone have any ideas? I can usually figure these things out, but
> I'm stumped on this one... thanks.
>
> ivtv: ==================== START INIT IVTV ====================
> ivtv: version 0.4.0 (tagged release) loading
> ivtv: Linux version: 2.6.13.2-chw-3 SMP preempt 586 gcc-3.3
> ivtv: In case of problems please include the debug info
> ivtv: between the START INIT IVTV and END INIT IVTV lines when
> ivtv: mailing the ivtv-devel mailinglist.
> ivtv0: Autodetected WinTV PVR 350 card (iTVC15 based)
> ACPI: PCI Interrupt 0000:00:08.0[A] -> GSI 16 (level, low) -> IRQ 18
> ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
> tuner (ivtv): chip found at addr 0xc2 i2c-bus ivtv i2c driver #0
> ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
> msp34xx: ivtv version
> msp34xx: init: chip=MSP3448W-A2, has NICAM support, simpler (G)
> no-thread mode msp34xx: $Id$ compiled on: Oct 9 2005 22:52:16
> ivtv0: i2c attach to card #0 ok [client=MSP3448W-A2, addr=40]
> saa7115 0-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
> ivtv0: i2c attach to card #0 ok [client=saa7115, addr=21]
> tveeprom: ivtv version
> tveeprom: Hauppauge: model = 48132, rev = J323, serial# = 7112712
> tveeprom: tuner = Philips FM1236 (idx = 23, type = 2)
> tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 = 0x00001000)
> tveeprom: audio processor = MSP4448 (type = 1b)
> tveeprom: decoder processor = SAA7115 (type = 13)
> ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
> saa7127 0-0044: saa7127 found @ 0x88 (ivtv i2c driver #0)
> ivtv0: i2c attach to card #0 ok [client=saa7127, addr=44]
> ivtv0: loading /lib/modules/ivtv-fw-enc.bin
> ivtv0: loading /lib/modules/ivtv-fw-dec.bin
> ivtv0: Encoder revision: 0x02040011
> ivtv0: Decoder revision: 0x02020023
> ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB
> total) ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers
> (2048KB total) ivtv0: Allocate DMA encoder VBI stream: 120 x 17472
> buffers (2048KB total) ivtv0: Allocate DMA encoder PCM audio stream:
> 455 x 4608 buffers (2048KB total) ivtv0: Create encoder radio stream
> ivtv0: Allocate DMA decoder MPEG stream: 16 x 65536 buffers (1024KB
> total) ivtv0: Allocate DMA decoder VBI stream: 512 x 2048 buffers
> (1024KB total) ivtv0: Create decoder VOUT stream
> ivtv0: Allocate DMA decoder YUV stream: 24 x 43200 buffers (1024KB
> total) ivtv0: loading /lib/modules/ivtv_init_mpeg.bin
> tuner: type set to 2 (Philips NTSC (FI1236,FM1236 and compatibles))
> by ivtv i2c driver #0 ivtv0: Initialized WinTV PVR 350, card #0
> ivtv: ====================== NEXT CARD ======================
> ivtv1: Autodetected WinTV PVR 250 card (iTVC16 based)
> ACPI: PCI Interrupt 0000:00:09.0[A] -> GSI 17 (level, low) -> IRQ 19
> ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
> tuner (ivtv): chip found at addr 0xc2 i2c-bus ivtv i2c driver #1
> ivtv1: i2c attach to card #1 ok [client=(tuner unset), addr=61]
> msp34xx: ivtv version
> msp34xx: init: chip=MSP3435G-B6, has NICAM support, simpler (G)
> no-thread mode msp34xx: $Id$ compiled on: Oct 9 2005 22:52:16
> ivtv1: i2c attach to card #1 ok [client=MSP3435G-B6, addr=40]
> saa7115 1-0021: saa7115 found @ 0x42 (ivtv i2c driver #1)
> ivtv1: i2c attach to card #1 ok [client=saa7115, addr=21]
> tveeprom: ivtv version
> tveeprom: Hauppauge: model = 32031, rev = B110, serial# = 6151093
> tveeprom: tuner = Philips FI1236 MK2 (idx = 10, type = 2)
> tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 = 0x00001000)
> tveeprom: audio processor = MSP3435 (type = a)
> tveeprom: decoder processor = SAA7115 (type = 13)
> ivtv1: i2c attach to card #1 ok [client=tveeprom, addr=50]
> ivtv1: loading /lib/modules/ivtv-fw-enc.bin
> ivtv1: Encoder revision: 0x02040011
> ivtv1: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB
> total) ivtv1: Allocate DMA encoder YUV stream: 194 x 10800 buffers
> (2048KB total) ivtv1: Allocate DMA encoder VBI stream: 120 x 17472
> buffers (2048KB total) ivtv1: Allocate DMA encoder PCM audio stream:
> 455 x 4608 buffers (2048KB total) tuner: type set to 2 (Philips NTSC
> (FI1236,FM1236 and compatibles)) by ivtv i2c driver #1 ivtv1:
> Initialized WinTV PVR 250, card #1
> ivtv: ==================== END INIT IVTV ====================
>
>
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