linux-kernel - Re: Problem with saa7134 driver (tuner doesn't tune specific stations)

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Message-Id: <1185819864.8997.71.camel@gaivota>
Date:	Mon, 30 Jul 2007 15:24:24 -0300
From:	Mauro Carvalho Chehab <mchehab@...radead.org>
To:	Khelben Blackstaff <eye.of.the.8eholder@...il.com>
Cc:	linux-kernel@...r.kernel.org, video4linux-list@...hat.com,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Problem with saa7134 driver (tuner doesn't tune specific
	stations)

Hi Khelben,

It seems to be something related to tda8290/8275 tuner. This may be
standard related. Are those channels analog or digital? If analog,
what's your video standard?

Can you do a bissect and help us to identify what patch broke it?

You can do a -git bissect or use our Mercurial development tree,
available at:
	http://linuxtv.org/hg/v4l-dvb

At /README.patches file at the tree, you will find some basic rules on
how to do bissect.

Cheers,
Mauro.

Em Qua, 2007-07-25 às 01:06 -0700, Andrew Morton escreveu:
> (cc v4l list)
> 
> On Tue, 24 Jul 2007 13:29:31 +0300 "Khelben Blackstaff" <eye.of.the.8eholder@...il.com> wrote:
> 
> > Hello.
> > 
> > I have a "Terratec Cinergy HT PCI" tuner which works perfectly with
> > 2.6.21 kernel.
> > With 2.6.22 kernel it doesn't tune specific stations while it tunes
> > others fine.
> > I browsed the lkml from 13/05 (date the 2.6.22-rc1 was released) but
> > haven't found
> > anything similar nor in google. I have also tried 2.6.23-rc1 to see if
> > its fixed.
> > 
> > lspci output:
> > 01:0a.0 Multimedia controller: Philips Semiconductors SAA7133/SAA7135
> > Video Broadcast Decoder (rev d1)
> > lspci -n output:
> > 01:0a.0 0480: 1131:7133 (rev d1)
> > 
> > dmesg output (same for 2.6.21/22/23-rc1):
> > saa7130/34: v4l2 driver version 0.2.14 loaded
> > ACPI: PCI Interrupt 0000:01:0a.0[A] -> GSI 21 (level, low) -> IRQ 21
> > saa7133[0]: found at 0000:01:0a.0, rev: 209, irq: 21, latency: 64,
> > mmio: 0xcdcff800
> > saa7133[0]: subsystem: 153b:1175, board: Terratec Cinergy HT PCI
> > [card=108,autodetected]
> > saa7133[0]: board init: gpio is 0
> > saa7133[0]: i2c eeprom 00: 3b 15 75 11 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
> > saa7133[0]: i2c eeprom 10: ff ff ff 0f ff 20 ff 00 01 50 32 79 01 3c ca 50
> > saa7133[0]: i2c eeprom 20: 01 40 01 02 02 01 01 00 06 ff 00 94 02 51 96 2b
> > saa7133[0]: i2c eeprom 30: a7 58 7a 1f 03 8e 84 5e da 7a 04 b3 05 87 b2 3c
> > saa7133[0]: i2c eeprom 40: ff 21 00 c0 96 10 03 32 15 10 fd 79 44 9f c2 8f
> > 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 @ 0x96 (saa7133[0])
> > tuner 0-004b: setting tuner address to 60
> > tuner 0-004b: type set to tda8290+75a
> > tuner 0-004b: setting tuner address to 60
> > tuner 0-004b: type set to tda8290+75a
> > saa7133[0]: registered device video0 [v4l2]
> > saa7133[0]: registered device vbi0
> > saa7134 ALSA driver for DMA sound loaded
> > saa7133[0]/alsa: saa7133[0] at 0xcdcff800 irq 21 registered as card -1
> > 
> > the .config was copied from 2.6.21 -> 2.6.22 -> 2.6.23-rc1 and no
> > option regarding
> > the media/video was changed.
> > 
> > the behaviour is the same with xdtv and tvtime programs.
> > 
> > I have the following channels stored:
> > UHF 23, 24, 25, 26, 27, 39, 43, 51, 54, 62, 65
> > 
> > With 2.6.21 every station works fine.
> > With 2.6.22+ i get the following behavior:
> > 23, 25, 26, 39, 43, 51, 54 work fine while
> > 24, 27, 62, 65 have sound but no video.
> > 
> > The channels that don't work aren't small channels with low signal
> > quality, they have
> > the same quality with those that work, so i guess its not something
> > about antenna quality.
> > 
> > Has anyone the same problem ?
> > If you need any more info, please tell me.
> > 
> > Please CC me.
> > Thank you for your time.
> -
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-- 
Cheers,
Mauro

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