On 5/5/05, Mark Hennessy <[EMAIL PROTECTED]> wrote: > Hello, I have a WinTV PVR-150 model 1045, using MythTV and Ubuntu (Hoary) > Linux. > > I am using NTSC in the US. > > I'm using ivtv 0.3.3k > > I'm able to get video over composite just fine with this setup, but audio over > composite has alot of noise. The noise seems to happen at the same time as > bright spots or flares happen on the video. For example, if the screen is > completely white, there will be lots of static noise, but if the screen is > darker, the noise will be less. > > If anyone could point me in the right direction, I would greatly appreciate > it. > > This is my dmesg output from when the driver is started: > Linux video capture interface: v1.00 > ivtv: ==================== START INIT IVTV ==================== > ivtv: version 0.3.3 (k) loading > ivtv: Linux version: 2.6.10-5-686 preempt 686 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. > ivtv: User specified WinTV PVR 150 card > ivtv: Found an iTVC16 based chip > ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10 > PCI: setting IRQ 10 as level-triggered > ACPI: PCI interrupt 0000:02:08.0[A] -> GSI 10 (level, low) -> IRQ 10 > ivtv: XXX PCI device: 0x2530 vendor: 0x8086 > tveeprom: Hauppauge: model = 26032, rev = C199, serial# = 7935816 > tveeprom: tuner = TCL 2002N 5H (idx = 99, type = 50) > tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 = 0x00001000) > tveeprom: audio_processor = TDA9850 (type = 3) > ivtv: i2c attach [client=tveeprom[50],ok] > cx25840: starting probe for adapter ivtv i2c driver #0 (0x10005) > cx25840: detecting client on address 0x88 > cx25840: writing init values > cx25840: FW image '/lib/modules/HcwMakoA.ROM' of size 14264 loaded. > cx25840: FW image md5 digest: 3a4803384f749d644ee1f1ca9dcb12fa > cx25840: FW image sha1 digest: 2b5e6292b7391c980b93d156cf6b34178ce770f6 > cx25840: Status: cx258413 (DEVICE_ID) > ivtv: i2c attach [client=cx25840[50],ok] > ivtv: Tuner Type 50, Tuner formats 0x00001000, Radio: yes, Model 0x008d1659, > Revision 0x00000000 > ivtv: NTSC tuner detected > ivtv: Radio detected > tuner: Ignoring new-style parameters in presence of obsolete ones > tuner: chip found at addr 0xc2 i2c-bus ivtv i2c driver #0 > ivtv: i2c attach [client=(tuner unset),ok] > ivtv: i2c attach [client=wm8775[50],ok] > ivtv: Encoder revision: 0x02040024 > ivtv: Encoder Firmware may be buggy, use version 0x02040011 > ivtv: Configuring WinTV PVR 150 card with 5 streams > ivtv: Registered v4l2 device, streamtype 0 minor 0 > ivtv: Create DMA stream 0 using 1024 16384 byte buffers 0 kbytes total > ivtv: Allocate DMA stream 0 using 1024 16384 byte buffers 16777216 kbytes > totalivtv: Registered v4l2 device, streamtype 1 minor 32 > ivtv: Create DMA stream 1 > ivtv: Allocate DMA stream 1 > ivtv: Registered v4l2 device, streamtype 2 minor 224 > ivtv: Create DMA stream 2 using 121 34632 byte buffers 0 kbytes total > ivtv: Allocate DMA stream 2 using 121 34632 byte buffers 4194304 kbytes total > ivtv: Registered v4l2 device, streamtype 3 minor 24 > ivtv: Create DMA stream 3 using 455 4608 byte buffers 0 kbytes total > ivtv: Allocate DMA stream 3 using 455 4608 byte buffers 2097152 kbytes total > ivtv: Registered v4l2 device, streamtype 4 minor 64 > ivtv: Create stream 4 > ivtv: Allocate stream 4 > ivtv: Setting Tuner 50 > tuner: type set to 50 (TCL 2002N) by ivtv i2c driver #0 > cx25840: decoder set input (6) > cx25840: Tuner Input > ivtv: ivtv_enc_thread: pid = 3125, itv = 0xd09eef40 > cx25840: set audio: 0x01 > ivtv: Switching standard to NTSC. > cx25840: decoder set norm NTSC > cx25840: set audio: 0x01 > ivtv: Initialized WinTV PVR 150, card #0 > ivtv: ==================== END INIT IVTV ==================== > > Here is what I have in my modules.conf: > ### update-modules: start processing /etc/modutils/ivtv > # WinTV PVR-150 > #alias char-major-81 videodev > #alias char-major-81-0 ivtv > #options ivtv ivtv_debug=1 cardtype=6 > # ivtv modules setup > alias char-major-81 videodev > alias char-major-81-0 ivtv > options ivtv ivtv_debug=1 mpg_buffers=90 cardtype=6 > #w/ivtv 0.1.9 > options saa7127 enable_output=1 output_select=0 > options tuner type=2 # NTSC tuner > #options msp3400 once=1 simple=1 > options cx25840 no_black_magic=1 audiofmt=0x20 > options wm8775 mixer=2 > #add below ivtv msp3400 saa7115 saa7127 tuner > add above ivtv lirc_dev lirc_i2c lirc_sir > add above ivtv ivtv-fb > > ### update-modules: end processing /etc/modutils/ivtv > > ------------------------------------------------------- > This SF.Net email is sponsored by: NEC IT Guy Games. > Get your fingers limbered up and give it your best shot. 4 great events, 4 > opportunities to win big! Highest score wins.NEC IT Guy Games. Play to > win an NEC 61 plasma display. Visit http://www.necitguy.com/?r > _______________________________________________ > ivtv-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ivtv-devel >
Mark, Try switching off all the other audio inputs in your mixer... This seems to have solved my problem with intermittent static. I've only tried it out for about 5 minutes, so it might be premature, but it looks like its behaving better. /drdaz ------------------------------------------------------- This SF.Net email is sponsored by Oracle Space Sweepstakes Want to be the first software developer in space? Enter now for the Oracle Space Sweepstakes! http://ads.osdn.com/?ad_ids93&alloc_id281&op=click _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
