On Wed, 2010-12-29 at 22:17 +1100, auric wrote:
> Just upgraded my machine from fedora fc12 to fc14 and am getting a very
> loud hiss/buzz in the audio. This hiss is about 2 times louder than the
> actual audio which can just be heard below the hiss. video is OK.
>
> Card: PVR-150
> Input: S-Video/line 1 (not using tuner)
> players: mplayer /dev/video1 and mythtv both show the same problem.
>
> fc14 kernel 2.6.35.10-74.fc14.i686.PAE (1.4.2 ivtv): loud hiss
>
> Booting fc14 with the old fc12 kernel 2.6.32.26-175.fc12.i686.PAE (1.4.1
> ivtv): sound perfect.
>
> fc14 kernel 2.6.35.10-74.fc14.i686.PAE plus latest
> git://linuxtv.org/media_build.git build installed: Same loud hiss.
>
> I've compared the ctrls settings between 1.4.1 and 1.4.2 and the appear
> identical. Also have tried the set-audio-input=1 option, which I had
> used previously to get rid of the old tinny sound issue, but no fix.
>
> Does anyone know a solution to this issue?
As a quick test, to eliminate fc14 sound system issues:
1. record the video and audio on fc14
2. play it back on fc12
If the hiss persists, then recent changes to the WM8775 driver are
likely the cause.
When the patches for the WM8775 first appeared for cards supported by
the cx88 driver, I asked them to make sure the wm8775 defaults didn't
change for the sake of ivtv. However I never had time to properly
review the final patch to wm8775.
If you can git bisect down the media_build.git tree to the problem
commit, that would save me time in generating a fix.
Regards,
Andy
>
>
> Options used
> alias char-major-81-1 ivtv
> options ivtv radio=0 ivtv_first_minor=1
>
> messages extract, includes all the capture cards (PVR-150, AVerMedia,
> Afatech)
> ivtv: Start initialization, version 1.4.2
> Registered IR keymap rc-avermedia
> input: saa7134 IR (AVerMedia TV Hybrid
> as /devices/pci0000:00/0000:00:1e.0/0000:05:01.0/rc/rc1/input7
> rc1: saa7134 IR (AVerMedia TV Hybrid
> as /devices/pci0000:00/0000:00:1e.0/0000:05:01.0/rc/rc1
> saa7133[0]: i2c eeprom 00: 61 14 00 2c 00 00 00 00 00 00 00 00 00 00 00
> 00
> saa7133[0]: i2c eeprom 10: 00 ff 82 0e ff 20 ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 20: 01 40 01 02 02 03 03 01 08 ff 00 a3 ff ff ff
> ff
> saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 40: ff 32 00 c0 86 1e ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> saa7133[0]: i2c eeprom f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff
> tuner 0-0060: chip found @ 0xc0 (saa7133[0])
> tea5767 0-0060: type set to Philips TEA5767HN FM Radio
> HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> tuner 0-0043: chip found @ 0x86 (saa7133[0])
> dvb-usb: found a 'KWorld PlusTV Dual DVB-T Stick (DVB-T 399U)' in warm
> state.
> dvb-usb: will pass the complete MPEG2 transport stream to the software
> demuxer.
> DVB: registering new adapter (KWorld PlusTV Dual DVB-T Stick (DVB-T
> 399U))
> ALSA sound/pci/hda/hda_codec.c:3519: hda_codec: model '6stack-dig' is
> selected
> nvidia: module license 'NVIDIA' taints kernel.
> Disabling lock debugging due to kernel taint
> tda9887 0-0043: creating new instance
> tda9887 0-0043: tda988[5/6/7] found
> tea5767 0-0060: type set to Philips TEA5767HN FM Radio
> saa7133[0]: registered device video0 [v4l2]
> saa7133[0]: registered device vbi0
> saa7133[0]: registered device radio0
> ivtv0: Initializing card 0
> ivtv0: Autodetected Hauppauge card (cx23416 based)
> ivtv 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> tveeprom 3-0050: The eeprom says no radio is present, but the tuner
> type
> tveeprom 3-0050: indicates otherwise. I will assume that radio is
> present.
> tveeprom 3-0050: Hauppauge model 26039, rev F0A5, serial# 8837914
> tveeprom 3-0050: tuner model is TCL MPE05-2 (idx 105, type 38)
> tveeprom 3-0050: TV standards PAL(B/G) PAL(I) SECAM(L/L') PAL(D/D1/K)
> (eeprom 0x74)
> tveeprom 3-0050: audio processor is CX25842 (idx 36)
> tveeprom 3-0050: decoder processor is CX25842 (idx 29)
> tveeprom 3-0050: has radio, has IR receiver, has IR transmitter
> ivtv0: Autodetected Hauppauge WinTV PVR-150
> ivtv0: Reopen i2c bus for IR-blaster support
> af9013: firmware version:4.95.0.0
> DVB: registering adapter 1 frontend 0 (Afatech AF9013 DVB-T)...
> dvb_init() allocating 1 frontend
> MXL5005S: Attached at address 0xc6
> dvb-usb: will pass the complete MPEG2 transport stream to the software
> demuxer.
> DVB: registering new adapter (KWorld PlusTV Dual DVB-T Stick (DVB-T
> 399U))
> af9013: found a 'Afatech AF9013 DVB-T' in warm state.
> af9013: firmware version:4.95.0.0
> DVB: registering adapter 2 frontend 0 (Afatech AF9013 DVB-T)...
> MXL5005S: Attached at address 0xc6
> Registered IR keymap rc-empty
> input: IR-receiver inside an USB DVB receiver
> as /devices/pci0000:00/0000:00:1a.7/usb1/1-5/rc/rc2/input8
> rc2: IR-receiver inside an USB DVB receiver
> as /devices/pci0000:00/0000:00:1a.7/usb1/1-5/rc/rc2
> dvb-usb: schedule remote query interval to 500 msecs.
> dvb-usb: KWorld PlusTV Dual DVB-T Stick (DVB-T 399U) successfully
> initialized and connected.
> usbcore: registered new interface driver dvb_usb_af9015
> nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io
> +mem,decodes=none:owns=io+mem
> NVRM: loading NVIDIA UNIX x86 Kernel Module 260.19.21 Thu Nov 4
> 20:24:24 PDT 2010
> cx25840 3-0044: cx25842-23 found @ 0x88 (ivtv i2c driver #0)
> tuner-simple 0-0061: unable to probe Philips TD1316 Hybrid Tuner,
> proceeding anyway.
> tuner-simple 0-0061: creating new instance
> tuner-simple 0-0061: type set to 67 (Philips TD1316 Hybrid Tuner)
> DVB: registering new adapter (saa7133[0])
> DVB: registering adapter 0 frontend 0 (Zarlink MT352 DVB-T)...
> tuner 3-0043: chip found @ 0x86 (ivtv i2c driver #0)
> tda9887 3-0043: creating new instance
> tda9887 3-0043: tda988[5/6/7] found
> tuner 3-0061: chip found @ 0xc2 (ivtv i2c driver #0)
> wm8775 3-001b: chip found @ 0x36 (ivtv i2c driver #0)
> saa7134 ALSA driver for DMA sound loaded
> saa7133[0]/alsa: saa7133[0] at 0xfebff800 irq 17 registered as card -1
> tuner-simple 3-0061: creating new instance
> tuner-simple 3-0061: type set to 38 (Philips PAL/SECAM multi (FM1216ME
> MK3))
> ivtv0: Registered device video1 for encoder MPG (4096 kB)
> ivtv0: Registered device video33 for encoder YUV (2048 kB)
> ivtv0: Registered device vbi1 for encoder VBI (1024 kB)
> ivtv0: Registered device video25 for encoder PCM (320 kB)
> ivtv0: Initialized card: Hauppauge WinTV PVR-150
> ivtv: End initialization
> ivtv0: Loaded v4l-cx2341x-enc.fw firmware (376836 bytes)
> ivtv0: Encoder revision: 0x02060039
> cx25840 3-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
>
> Thanks
>
> Auric
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