[ivtv-users] Single Line of Static at the Top of the Screen

Adam Bell adam at elysiumfields.cc
Mon Nov 21 18:27:56 CET 2005

Hey all!

So I have an interesting issue here, and it's one of those things  
that's very hard to google due to false positives, so I thought I'd  
ask you all directly what you think about it.

I have a mythtv setup (which is awesome) running on debian unstable  
with a PVR-350 as my encoder.  I am running kernel 2.6.12 and the  
X.org 6.8.2 X server.

I'm using the 0.4 version of the ivtv driver, and the irritation is  
that almost all (something like 95%) of the recordings I make have a  
single line of static right at the top of the screen.  The ones that  
don't have no rhyme or reason to them (ie they are not from the same  
channel, or the same time, or the first ones recorded after a  
restart, or even the same shows).  Has anyone else run into this, and  
if so is there a way to just clip out that top line?  I feel like  
there must be a command to do this, but I admit I just couldn't find  
it.  I'm also vaguely curious about what's causing it, but losing a  
single scanline of what is no doubt intended to be overscanned out of  
existence anyway isn't going to cause me to lose a whole lot of sleep.

For fun, here's my ivtv init messages...I don't really think it's  
going to be too awfully relevant in this case, but it just seems like  
the thing to do anytime you ask folk to talk about a problem with  
you.  Who knows, maybe I have the wrong encoder version or something.

Adam B.

ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.4.0 (tagged release) loading
ivtv:  Linux version: 2.6.12-1-686 686 gcc-4.0
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 0000:02:09.0[A] -> GSI 16 (level, low) -> IRQ 177
tveeprom: ivtv version
tveeprom: Hauppauge: model = 48132, rev = K268, serial# = 7775703
tveeprom: tuner = LG TAPE H001F MK3 (idx = 68, type = 47)
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]
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]
saa7115 0-0021: saa7115 found @ 0x42 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=saa7115, addr=21]
saa7127 0-0044: saa7129 found @ 0x88 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=saa7127, addr=44]
msp34xx: ivtv version
msp34xx: init: chip=MSP3448W-A2, has NICAM support, simple (D) mode,  
simpler (G) no-thread mode
msp34xx: $Id$ compiled on: Nov 20 2005 10:27:17
ivtv0: i2c attach to card #0 ok [client=MSP3448W-A2, addr=40]
tda9885/6/7: (ivtv) chip found @ 0x86
ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
ivtv0: requesting ivtv-fw-enc.bin from hotplug
ivtv0: requesting ivtv-fw-dec.bin from hotplug
ivtv0: Encoder revision: 0x02050032
ivtv0: Decoder revision: 0x02020023
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB  
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB  
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB  
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  
ivtv0: Allocate DMA decoder VBI stream: 512 x 2048 buffers (1024KB  
ivtv0: Create decoder VOUT stream
ivtv0: Allocate DMA decoder YUV stream: 24 x 43200 buffers (1024KB  
ivtv0: requesting ivtv_init_mpeg.bin from hotplug
tuner: type set to 47 (LG NTSC (TAPE series)) by ivtv i2c driver #0
ivtv0: Initialized WinTV PVR 350, card #0
ivtv:  ====================  END INIT IVTV  ====================

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