Pb with sound on SECAM-L channels solved ! | |
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The original description of the sound problem I had on the SECAM-L channels (I am located near Paris) can be found in this thread : https://www.redhat.com/mailman/private/video4linux-list/2004-May/msg00454.html I eventually solved the problem today ! Solution : 1. use a recent V4L driver : you need a driver which includes the recent rewrite of the tda9887 module, i.e. either the in-kernel driver shipped with the 2.6.8-rc2 kernel, or the CVS snapshots available on http://dl.bytesex.org/cvs-snapshots/ 2. Use the option "port2=0" for the "tda9887" module. With this solution, the kernel logs say : Jul 31 22:31:01 localhost kernel: Linux video capture interface: v1.00 Jul 31 22:31:01 localhost kernel: saa7130/34: v4l2 driver version 0.2.12 loaded Jul 31 22:31:01 localhost kernel: saa7134[0]: found at 0000:00:08.0, rev: 1, irq : 25, latency: 32, mmio: 0xd8001000 Jul 31 22:31:01 localhost kernel: saa7134[0]: subsystem: 1894:a006, board: KNC O ne TV-Station DVR [card=24,autodetected] Jul 31 22:31:01 localhost kernel: saa7134[0]: board init: gpio is 30000 Jul 31 22:31:01 localhost kernel: saa7134[0]/oss: mixer input = TV Jul 31 22:31:02 localhost kernel: saa7134[0]: i2c eeprom 00: 94 18 06 a0 06 80 0 0 01 00 00 00 00 00 00 01 00 Jul 31 22:31:02 localhost kernel: saa7134[0]: i2c eeprom 10: 00 ff 86 0e ff 20 f f ff ff ff ff ff ff ff ff ff Jul 31 22:31:02 localhost kernel: saa7134[0]: i2c eeprom 20: 01 40 01 02 02 03 0 1 03 06 ff 01 df ff ff ff ff Jul 31 22:31:02 localhost kernel: saa7134[0]: i2c eeprom 30: ff ff ff ff ff ff f f ff ff ff ff ff ff ff ff ff Jul 31 22:31:02 localhost kernel: tuner: chip found at addr 0xc0 i2c-bus saa7134 [0] Jul 31 22:31:02 localhost kernel: tuner: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3)) by saa7134[0] Jul 31 22:31:02 localhost kernel: tda9885/6/7: chip found @ 0x86 Jul 31 22:31:02 localhost kernel: saa6752hs: chip found @ 0x40 Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device video0 [v4l2] Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device video1 [ts] Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device vbi0 Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device radio0 Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device dsp1 Jul 31 22:31:02 localhost kernel: saa7134[0]: registered device mixer1 Jul 31 22:32:04 localhost kernel: tda9885/6/7: switching to v4l2 [...] Jul 31 22:32:04 localhost kernel: -- Jul 31 22:32:04 localhost kernel: tda9885/6/7: configure for: SECAM-L Jul 31 22:32:04 localhost kernel: tda9885/6/7: writing: b=0x44 c=0x10 e=0x0b Jul 31 22:32:04 localhost kernel: tda9885/6/7: write: byte B 0x44 Jul 31 22:32:04 localhost kernel: B0 video mode : sound trap Jul 31 22:32:04 localhost kernel: B1 auto mute fm : no Jul 31 22:32:04 localhost kernel: B2 carrier mode : QSS Jul 31 22:32:04 localhost kernel: B3-4 tv sound/radio : AM/TV Jul 31 22:32:04 localhost kernel: B5 force mute audio: no Jul 31 22:32:04 localhost kernel: B6 output port 1 : high Jul 31 22:32:04 localhost kernel: B7 output port 2 : low Jul 31 22:32:04 localhost kernel: tda9885/6/7: write: byte C 0x10 Jul 31 22:32:04 localhost kernel: C0-4 top adjustment : 0 dB Jul 31 22:32:04 localhost kernel: C5-6 de-emphasis : no Jul 31 22:32:04 localhost kernel: C7 audio gain : 0 Jul 31 22:32:04 localhost kernel: tda9885/6/7: write: byte E 0x0b Jul 31 22:32:04 localhost kernel: E0-1 sound carrier : 6.5 MHz / AM Jul 31 22:32:04 localhost kernel: E6 l pll ganting : 13 Jul 31 22:32:04 localhost kernel: E2-4 video if : 38.9 MHz Jul 31 22:32:04 localhost kernel: E5 tuner gain : normal Jul 31 22:32:04 localhost kernel: E7 vif agc output : pin3+pin22 port Jul 31 22:32:04 localhost kernel: -- Jul 31 22:32:04 localhost kernel: saa7134[0]/oss: buffer config: 64 blocks / 409 6 bytes, 256 kB total Jul 31 22:32:04 localhost kernel: saa7134[0]/oss: rec_start: afmt=16 ch=2 => f mt=0xdd swap=- Without the "port2=0" option, I have the sound problem, and the kernel logs differ slightly (the line "B7 output port 2" says it's set to "high", instead of "low") : Jul 31 22:36:57 localhost kernel: tda9885/6/7: configure for: SECAM-L Jul 31 22:36:57 localhost kernel: tda9885/6/7: writing: b=0xc4 c=0x10 e=0x0b Jul 31 22:36:57 localhost kernel: tda9885/6/7: write: byte B 0xc4 [...] Jul 31 22:36:57 localhost kernel: B6 output port 1 : high Jul 31 22:36:57 localhost kernel: B7 output port 2 : high I have some questions : 1. Why does this option "port2=0" solves my problem ? 2. Will it work with the option "port2=0" for the "tda9887" module on PAL channels with my KNC TV-Station DVR board ? Thanks in advance for your answers ! -- Alexis -- Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list
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