On Mar 24, 2005 5:54 AM, Robson Braga Araujo <[EMAIL PROTECTED]> wrote: > I have a problem with only one channel. Here in Brazil we use PAL-M, > which is really NTSC with the PAL colors. So, I'm using the ntsc-cable > table frequencies. It all used to work, but now I'm having problems with > channel 61. Sometimes when I tune in to this channel I get perfect > audio, sometimes I don't get audio at all, some times I get a low volume > static sound. The image is always perfect.
I was having the same problem, only the volume is always quiet. Attempts to set the volume via ivtvctl produced ZERO change. 0 and 65535 sound exactly the same. Here's the dmesg info: Apr 3 17:22:50 backend1 kernel: ivtv: ==================== START INIT IVTV ==================== Apr 3 17:22:53 backend1 kernel: ivtv: version 0.3.2 (j) loading Apr 3 17:22:58 backend1 kernel: ivtv: Linux version: 2.6.10-DVB K7 REGPARM 4KSTACKS gcc-3.4 Apr 3 17:22:58 backend1 kernel: ivtv: In case of problems please include the debug info Apr 3 17:22:58 backend1 kernel: ivtv: between the START INIT IVTV and END INIT IVTV lines when Apr 3 17:22:59 backend1 kernel: ivtv: mailing the ivtv-devel mailinglist. Apr 3 17:22:59 backend1 kernel: ivtv: Autodetected WinTV PVR 250 card Apr 3 17:22:59 backend1 kernel: ivtv: Found an iTVC16 based chip Apr 3 17:22:59 backend1 kernel: ivtv: VIA PCI device: 0x3189 vendor: 0x1106 Apr 3 17:22:59 backend1 kernel: ivtv: i2c attach [client=tveeprom[0],ok] Apr 3 17:22:59 backend1 kernel: ivtv: Tuner Type 39, Tuner formats 0x00001000, Radio: yes, Model 0x00893612, Revision 0x00000000 Apr 3 17:22:59 backend1 kernel: ivtv: NTSC tuner detected Apr 3 17:22:59 backend1 kernel: ivtv: Radio detected Apr 3 17:23:00 backend1 kernel: tuner: chip found at addr 0xc2 i2c-bus ivtv i2c driver #0 Apr 3 17:23:00 backend1 kernel: ivtv: i2c attach [client=(tuner unset),ok] Apr 3 17:23:01 backend1 kernel: saa7115: starting probe for adapter ivtv i2c driver #0 (0x10005) Apr 3 17:23:01 backend1 kernel: ivtv: i2c attach [client=saa7115[0],ok] Apr 3 17:23:02 backend1 kernel: ivtv: i2c attach [client=MSP3448W-B3,ok] Apr 3 17:23:02 backend1 kernel: ivtv: Encoder revision: 0x02040011 Apr 3 17:23:02 backend1 kernel: ivtv: Configuring WinTV PVR 250 card with 5 streams Apr 3 17:23:02 backend1 kernel: ivtv: Registered v4l2 device, streamtype 0 minor 0 Apr 3 17:23:02 backend1 kernel: ivtv: Create DMA stream 0 using 1024 16384 byte buffers 0 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Allocate DMA stream 0 using 1024 16384 byte buffers 16777216 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Registered v4l2 device, streamtype 1 minor 32 Apr 3 17:23:02 backend1 kernel: ivtv: Create DMA stream 1 Apr 3 17:23:02 backend1 kernel: ivtv: Allocate DMA stream 1 Apr 3 17:23:02 backend1 kernel: ivtv: Registered v4l2 device, streamtype 2 minor 224 Apr 3 17:23:02 backend1 kernel: ivtv: Create stream 2 using 40 52224 byte buffers 0 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Allocate stream 2 using 40 52224 byte buffers 2097152 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Registered v4l2 device, streamtype 3 minor 24 Apr 3 17:23:02 backend1 kernel: ivtv: Create DMA stream 3 using 455 4608 byte buffers 0 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Allocate DMA stream 3 using 455 4608 byte buffers 2097152 kbytes total Apr 3 17:23:02 backend1 kernel: ivtv: Registered v4l2 device, streamtype 4 minor 64 Apr 3 17:23:02 backend1 kernel: ivtv: Create stream 4 Apr 3 17:23:02 backend1 kernel: ivtv: Allocate stream 4 Apr 3 17:23:02 backend1 kernel: ivtv: Setting Tuner 39 Apr 3 17:23:02 backend1 kernel: tuner: type set to 39 (LG NTSC (newer TAPC series)) by ivtv i2c driver #0 Apr 3 17:23:03 backend1 kernel: ivtv: Setting audio matrix to input 3, output 1 Apr 3 17:23:03 backend1 kernel: ivtv: Switching standard to NTSC. Apr 3 17:23:03 backend1 kernel: ivtv: Initialized WinTV PVR 250, card #0 Apr 3 17:23:03 backend1 kernel: ivtv: ==================== END INIT IVTV ==================== Apr 3 17:23:03 backend1 kernel: ivtv: ivtv_enc_thread: pid = 4874, itv = 0xe0cca7a0 I was able to resolve the problem by: 1. Seeing what the audio matrix was, IE 3,1 in the IVTV init. 2. Use that for ivtvctl, IE ivtvctl -v input=3,output=1 3. change the volume : ivtvctl -y volume=65535 not sure why in this driver it's so low by default, but that's what fixed it for me. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
