Pinnacle PCTV40i analogue noise with recent kernel versions

[Hartmut Hackmann <hartmut.hackmann (at) t-online.de>]

Hi, Karsten

Karsten Suehring wrote:
> Hartmut,
>
> I'm sorry for the late reply. After starting the message thread I got a
> bad cold which disabled all higher brain functionality :-(
Ok, hope you recovered well...

> Unfortunately my problems seem to be different than the other tuner
> related reports. I'm using composite input on the s-video connector with
> the adaptor that came with the card.
I had the impression...

> I have several of these cards in different machines. Most of them return:
> saa7133[0]: i2c eeprom read error (err=-5)
>
> On two cards I get the eeprom dump. But this might be OS dependent.
> Here is the dmesg output:
>
> --
> saa7133[0]: found at 0000:02:0c.0, rev: 208, irq: 225, latency: 32, mmio: 0xfe9df800
> saa7133[0]: subsystem: 11bd:002e, board: Pinnacle PCTV 110i (saa7133) [card=77,autodetected]
> saa7133[0]: board init: gpio is 200c000
> saa7133[0]: i2c eeprom 00: bd 11 2e 00 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
> saa7133[0]: i2c eeprom 10: ff e0 60 02 ff 20 ff ff ff ff ff ff ff ff ff ff
> saa7133[0]: i2c eeprom 20: 01 2c 01 02 02 01 04 30 98 ff 00 a0 ff 22 00 c2
> saa7133[0]: i2c eeprom 30: 96 ff 03 30 15 01 ff ff 0c 22 17 87 03 43 88 b7
> saa7133[0]: i2c eeprom 40: ff ff ff ff ff ff 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
> tuner 0-004b: chip found  (at)  0x96 (saa7133[0])
> saa7133[0]: registered device video0 [v4l2]
> saa7133[0]: registered device vbi0
> saa7133[0]: registered device radio0
> --
>
> Best regards,
> Karsten
<snip>

Well, the eeprom dump has an unusual structure, but what i see is as expected.
Tuner is regular TDA8275A, analog only with FM radio, right?
And if you problem occurs with the composite input, the tuner is out of the
game anyway...
The funny thing is that you have problems with the I2C bus. Are your mainboards
the same type? I somehow suspect the power supply. There also might be some
special - GPIO controlled power save mode i don't know about. On the board with
eeprom read failure: Does the problem still exist after you rebooted the machine
without power cycle?

Best regards
   Hartmut

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