I am having the same problems right now with 0.4.2 Tuner1 is good
/dev/video1 but /dev/video0 has issues with clarity and sound the sound I
get is very distorted voices and sound like it coming from an old scratchy
78 (Album) also a few his pops here and there.
I have DCT2500 (cable box) which is hooked up via Svideo or Composite still
make same sound.
PVR 500
0000:03:08.0 Multimedia video controller: Internext Compression Inc iTVC16
(CX23416) MPEG-2 Encoder (rev 01)
0000:03:09.0 Multimedia video controller: Internext Compression Inc iTVC16
(CX23416) MPEG-2 Encoder (rev 01)
ivtv-detect
driver: ivtv-0.4.2 (tagged release)
card: WinTV PVR 500 (unit #1), bus info 0000:03:08.0, ivtv card #0
hardware: cx25840 tda9887 wm8775 tveeprom
/dev/v4l/video0: MPG encoding (links: /dev/video, /dev/video0)
/dev/v4l/radio0: Radio (links: /dev/radio)
/dev/v4l/vbi0: VBI encoding (links: /dev/vbi, /dev/vbi0)
/dev/v4l/video24: PCM encoding (links: /dev/video24)
/dev/v4l/video32: YUV encoding (links: /dev/video32)
driver: ivtv-0.4.2 (tagged release)
card: WinTV PVR 500 (unit #2), bus info 0000:03:09.0, ivtv card #1
hardware: cx25840 tda9887 wm8775 tveeprom
/dev/v4l/video1: MPG encoding (links: /dev/video1)
/dev/v4l/vbi1: VBI encoding (links: /dev/vbi1)
/dev/v4l/video25: PCM encoding (links: /dev/video25)
/dev/v4l/video33: YUV encoding (links: /dev/video33)
All looks good when the card initializes
ivtv: ==================== START INIT IVTV ====================
ivtv: version 0.4.2 (tagged release) loading
ivtv: Linux version: 2.6.15-ck3-r1 gcc-3.4
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 Link [LNK2] enabled at IRQ 11
ACPI: PCI Interrupt 0000:03:08.0[A] -> Link [LNK2] -> GSI 11 (level, low) ->
IRQ 11
ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
tveeprom 2-0050: Hauppauge model 23552, rev D592, serial# 8233903
tveeprom 2-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 2-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 2-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101,
type 62)
tveeprom 2-0050: audio processor is CX25843 (idx 37)
tveeprom 2-0050: decoder processor is CX25843 (idx 30)
tveeprom 2-0050: has radio, has no IR remote
ivtv0: This is the first unit of a PVR500
tuner 2-0060: TEA5767 detected.
tuner 2-0060: chip found @ 0xc0 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=60]
tuner 2-0060: type set to 62 (Philips TEA5767HN FM Radio)
tuner 2-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
cx25840 2-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
cx25840 2-0044: loaded v4l-cx25840.fw firmware (12282 bytes)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
wm8775 2-001b: ivtv driver
wm8775 2-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
tda9887 2-0043: chip found @ 0x86 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
ivtv0: Detected a TEA5767 radio tuner. Enabling radio support.
ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv0: Encoder revision: 0x02050032
ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv0: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv0: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
total)
ivtv0: Create encoder radio stream
tuner 2-0061: type set to 57 (Philips FQ1236A MK4)
ivtv0: Initialized WinTV PVR 500 (unit #1), card #0
ivtv: ====================== NEXT CARD ======================
ivtv1: Autodetected WinTV PVR 150 card (cx23416 based)
ACPI: PCI Interrupt Link [LNK3] enabled at IRQ 3
PCI: setting IRQ 3 as level-triggered
ACPI: PCI Interrupt 0000:03:09.0[A] -> Link [LNK3] -> GSI 3 (level, low) ->
IRQ 3
ivtv1: Unreasonably low latency timer, setting to 64 (was 32)
ivtv1: i2c attach to card #1 ok [client=tveeprom, addr=50]
tuner 3-0061: chip found @ 0xc2 (ivtv i2c driver #1)
ivtv1: i2c attach to card #1 ok [client=(tuner unset), addr=61]
cx25840 3-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #1)
cx25840 3-0044: loaded v4l-cx25840.fw firmware (12282 bytes)
ivtv1: i2c attach to card #1 ok [client=cx25840, addr=44]
wm8775 3-001b: ivtv driver
wm8775 3-001b: chip found @ 0x36 (ivtv i2c driver #1)
ivtv1: i2c attach to card #1 ok [client=wm8775, addr=1b]
tda9887 3-0043: chip found @ 0x86 (ivtv i2c driver #1)
ivtv1: i2c attach to card #1 ok [client=tda9887, addr=43]
tveeprom 3-0050: Hauppauge model 23552, rev D592, serial# 8233903
tveeprom 3-0050: tuner model is Philips FQ1236A MK4 (idx 92, type 57)
tveeprom 3-0050: TV standards NTSC(M) (eeprom 0x08)
tveeprom 3-0050: second tuner model is Philips TEA5768HL FM Radio (idx 101,
type 62)
tveeprom 3-0050: audio processor is CX25843 (idx 37)
tveeprom 3-0050: decoder processor is CX25843 (idx 30)
tveeprom 3-0050: has radio, has no IR remote
ivtv1: This is the second unit of a PVR500
ivtv1: Correcting tveeprom data: no radio present on second unit
ivtv1: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
ivtv1: Encoder revision: 0x02050032
ivtv1: Allocate DMA encoder MPEG stream: 128 x 32768 buffers (4096KB total)
ivtv1: Allocate DMA encoder YUV stream: 194 x 10800 buffers (2048KB total)
ivtv1: Allocate DMA encoder VBI stream: 120 x 17472 buffers (2048KB total)
ivtv1: Allocate DMA encoder PCM audio stream: 455 x 4608 buffers (2048KB
total)
tuner 3-0061: type set to 57 (Philips FQ1236A MK4)
ivtv1: Initialized WinTV PVR 500 (unit #2), card #1
ivtv: ==================== END INIT IVTV ====================
uname -a
Linux mythmonster 2.6.15-ck3-r1 #1 Sat Feb 11 00:54:20 EST 2006 x86_64 AMD
Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux
Thanks,
Ed
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Hans Verkuil
Sent: Saturday, February 11, 2006 2:58 PM
To: User discussion about IVTV
Subject: Re: [ivtv-users] PVR-500 tuner 0 sound/reception problems
On Saturday 11 February 2006 20:44, Francisco Woodland wrote:
> Hello everyone,
>
> About a week ago I bought a PVR-500 (Samsung tuners)
> to put in the MythTV box I was making. Using the
> 0.4.2 ivtv drivers along with the tuner.c patch that
> Hans recently posted to the mailing list (thanks!), I
> believe I have both tuners working and accessible in
> MythTV. The problem I am having is with the reception
> and sound on tuner 0.
>
> First of all, the quality of the output of tuner 1 is
> excellent. However, the quality of the output of
> tuner 0 is quite fuzzy, especially on some of the
> lower channels. In addition to that, tuner 0 seems to
> have intermittent sound problems. Sometimes when I
> switch to a channel with tuner 0, I will get this
> loud, high buzzing sound along with the TV audio.
> However, when I switch channels, eventually this
> problem goes away, even if I go back to the same
> channel I was originally on.
Can you try attached patch to the tuner.c source? I have no idea if this
will work, but it's worth a try.
Hans
>
> I read some notes about the PVR-500 being particularly
> sensitive to signal strength, so I went out and bought
> an amplifier from Radio Shack to see if that would
> solve the problem. While I did see a slight increase
> in picture quality on tuner 0 (it's still not what I
> would like), the sound problem is still there and
> doesn't seem to have gotten any better.
>
> Is there anything else I can do to fix this problem?
> Might I have a bad PVR-500?
>
> I'm not sure what sort of debug output is useful to
> debug this, but I have seen others include the output
> from dmesg, which I put at the end of this message.
> Let me know if there's anything else I can give that
> would help diagnose this problem.
>
> Thanks,
> -Francisco
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