A problem of the missing sound on certain (but not all) channels has bugged me since upgrading to 0.4.2 from series 0.3 driver. I have tried all versions of 0.4 series driver with no luck. Currently I am using version 0.4.7
The problem ussually shows up as initially missing soung after switching to a channel, and sound kicks-in only after some time, usually after random 1-30 minutes. After many tries and unsuccessfull queries to this list, I have found what causes a problem. This problem appears on some channels (about 15% of total number). The ones broadcasting in Nicam Stereo or Nicam Bilingual are more prone to this problem. However, some channels with audio standard A2-DK1(DK2, DK3, etc.) have this problem to a bit lesser extennt, too. After trying different value combinations of register switch "ivtvctl -d /dev/video1 -g reg=0x808,val=0xXX", where XX - hex digit, as described in bug http://ivtvdriver.org/trac/ticket/58 I was able to force sound to appear. However, this is only a temporal solution - after changing channels and switching back, sound is missing again. Seems to me, audio autodetection fails or lags. Has anyone solved this problem? ivtv: ==================== START INIT IVTV ==================== ivtv: version 0.4.7 (tagged release) loading ivtv: Linux version: 2.6.8-3-686 preempt 686 gcc-3.3 ivtv: In case of problems please include the debug info between ivtv: the START INIT IVTV and END INIT IVTV lines, along with ivtv: any module options, when mailing the ivtv-users mailinglist. ivtv0: Autodetected WinTV PVR 150 card (cx23416 based) ACPI: PCI interrupt 0000:02:0c.0[A] -> GSI 5 (level, low) -> IRQ 5 ivtv0: Unreasonably low latency timer, setting to 64 (was 32) tveeprom: ivtv version tveeprom: Hauppauge: model = 26039, rev = C1A5, serial# = 8034660 tveeprom: tuner = TCL MPE05-2 (idx = 105, type = 38) tveeprom: tuner fmt = PAL(B/G) PAL(I) SECAM(L/L') PAL(D/K) (eeprom = 0x74, v4l2 = 0x00400e17) tveeprom: audio processor = CX25842 (type = 24) tveeprom: decoder processor = CX25842 (type = 1d) 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] cx25840: Ignoring new-style parameters in presence of obsolete ones cx25840 3-0044: ivtv driver cx25840 3-0044: cx25842-23 found @ 0x88 (ivtv i2c driver #0) cx25840 3-0044: loaded v4l-cx25840.fw firmware (16382 bytes) ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44] wm8775 3-001b: ivtv driver wm8775 3-001b: chip found @ 0x36 (ivtv i2c driver #0) ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b] tda9887: Ignoring new-style parameters in presence of obsolete ones tda9887 3-0043: (ivtv) chip found @ 0x86 (ivtv i2c driver #0) ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43] ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes) input: USB HID v1.10 Keyboard [Logitech USB Receiver] on ivtv0: Encoder revision: 0x02050032 ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total) ivtv0: Allocate DMA encoder YUV stream: 161 x 12960 buffers (2048KB total) ivtv0: Allocate DMA encoder VBI stream: 80 x 26208 buffers (2048KB total) input,hiddev96: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:00:1f.2-2.2 ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB total) tuner: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3)) by ivtv i2c driver #0 ivtv0: Initialized WinTV PVR 150, card #0 ivtv: ==================== END INIT IVTV ==================== # ivtvctl -d /dev/video1 --log-status ioctl VIDIOC_LOG_STATUS ok ivtv0: ================= START STATUS CARD #0 ================= cx25840 3-0044: Video signal: present cx25840 3-0044: Detected format: PAL-BDGHI cx25840 3-0044: Detected audio mode: dual cx25840 3-0044: Detected audio standard: NICAM-DK cx25840 3-0044: Audio muted: no cx25840 3-0044: Audio microcontroller: running cx25840 3-0044: Configured audio standard: automatic detection cx25840 3-0044: Configured audio system: automatic standard and mode detection cx25840 3-0044: Specified standard: PAL-BDGHI cx25840 3-0044: Specified input: Tuner cx25840 3-0044: Specified audio input: Tuner cx25840 3-0044: Specified audioclock freq: 48 kHz cx25840 3-0044: Preferred audio mode: stereo cx25840 3-0044: Selected 65 MHz format: autodetect cx25840 3-0044: Selected 45 MHz format: chroma wm8775 3-001b: Input: default tda9887 3-0043: Data bytes: b=14 c=70 e=09 ivtv0: ================== END STATUS CARD #0 ================== _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
