On Sunday 25 February 2007 06:51, John Drescher wrote:
> On 2/25/07, Bill Chmura <[EMAIL PROTECTED]> wrote:
> > Hi all,
> >
> > I am running 2.6.20.1 / Ubuntu with ivtv 0.10.0
> >
> > I have a PVR-500 with at least one samsung tuner, so I pretty much
> > accept the fact I am screwed and will not be happy with this card.
> >
> > Anyway, I upgraded from 2.6.17 and ivtv 0.7.4(?) to get the better
> > support for the samsung.
> >
> > Previous to this upgrade, one of the tuners on the card was awful,
> > but the other was not bad.
> >
> > Since the upgrade, the bad seems a little better (still unusable),
> > but the good seems much worse. Is there a way to get back to at
> > least one tuner working while I sort this out?
>
> Assuming that your kernel source is in /usr/src/linux:
>
> edit the file /usr/src/linux/drivers/media/video/tuner-types.c and
> remove the +4 on the three lines of the struct below:
>
> /* 70-79 */
> /* ------------ TUNER_SAMSUNG_TCPN_2121P30A - Samsung NTSC
> ------------ */
>
> /* '+ 4' turns on the Low Noise Amplifier */
> static struct tuner_range tuner_samsung_tcpn_2121p30a_ntsc_ranges[] =
> { { 16 * 130.00 /*MHz*/, 0xce, 0x01 + 4, },
> { 16 * 364.50 /*MHz*/, 0xce, 0x02 + 4, },
> { 16 * 999.99 , 0xce, 0x08 + 4, },
>
> John
Bill,
Let me know if this solves it for you. I have learned that under Windows
Hauppauge supplies a tool to toggle the LNA bit manually, so I might
want to do the same for linux.
I always thought Hauppauge did some fancy things to get the Samsung
tuner to work, turns out they really do the same as we do.
Regards,
Hans
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