[linux-dvb] Problem with Kworld ATSC-110

Dwaine Garden dwainegarden at rogers.com
Mon Jan 8 05:34:00 CET 2007

Finished testing...  Looks like the patch did not switch over to the second RF connection.

Could be related to this issue..  The Kworld device does display a picture for a split second
then it goes black with various green boxes shooting around the screen.  The picture is only displayed
on the digital RF connection.  If the antenna is put on the analog RF connection, I only get static for a split

I tried both patches to make sure.

buf[3] |= 0x08;


buf[3] &= ~0x08;

Jan  7 23:18:40 mythtv kernel: nxt2004: Waiting for firmware upload (dvb-fe-nxt2004.fw)...

Jan  7 23:18:40 mythtv kernel: nxt2004: Waiting for firmware upload(2)...

Jan  7 23:18:41 mythtv kernel: nxt2004: Firmware upload complete

Jan  7 23:18:49 mythtv kernel: nxt200x: Timeout waiting for nxt2004 to init.
Jan  7 23:19:20 mythtv last message repeated 16 times
Jan  7 23:20:20 mythtv last message repeated 28 times
Jan  7 23:21:21 mythtv last message repeated 30 times
Jan  7 23:22:21 mythtv last message repeated 27 times
Jan  7 23:23:21 mythtv last message repeated 22 times
Jan  7 23:24:14 mythtv last message repeated 25 times
Jan  7 23:24:50 mythtv last message repeated 14 times

----- Original Message ----
From: John <jharitos at yahoo.com>
To: Michael Krufky <mkrufky at linuxtv.org>
Cc: Dwaine Garden <dwainegarden at rogers.com>; Linux and Kernel Video <video4linux-list at redhat.com>; linux-dvb at linuxtv.org
Sent: Sunday, January 7, 2007 10:27:50 PM
Subject: Re: [linux-dvb] Problem with Kworld ATSC-110

Thanks, I'd be happy to test it out. It's not working
for me but I want to make sure I did it right.

The links says the following.

static int nxt200x_set_pll_input(u8 *buf, int input)
-    if (input)
-        buf[3] |= 0x08;
-    else
-        buf[3] &= ~0x08;
+    buf[3] |= 0x08;
    return 0;

Does this mean remove the code that has the minus and
add the one with the plus so the resulting code is.

static int nxt200x_set_pll_input(u8 *buf, int input)
    buf[3] |= 0x08;
    return 0;

>From there, make the changes then as root

cd /usr/src/uname -r
make M=drivers/media/video/saa7134

Take the resulting saa7134-dvb.ko and move it to the

All the other modules in the lib directory are
compressed so take the saa7134-dvb.ko and compress as

Did I do this correctly?

--- Michael Krufky <mkrufky at linuxtv.org> wrote:

> John wrote:
> > Thanks, I look forward to seeing if it works on
> your
> > system. I also tried it on a the latest livedvd
> > Knoppix distro and it diplayed the same behavior.
> > 
> > --- Dwaine Garden <dwainegarden at rogers.com> wrote:
> > 
> >> I'll do some testing too.  I have not tried both
> >> analog and digital on separate RF connections.
> I sent out test patches to address this very issue
> ages ago, but nobody has ever
> responded with any test results...
> The current code in the kernel will (or should)
> behave as follows:
> One RF is used for analog + digital cable (QAM256)
> The other RF is used for OTA VSB only.
> One of the patches in the link above should change
> the behavior to reflect the following:
> Analog will always use one RF, and digital,
> regardless of VSB or QAM, will use the other.
> At the time I wrote the email, I wasnt sure which
> patch was correct, so I provided two
> for testing.  One will work correctly, and the other
> will probably force all tuning to
> use the single RF no matter what.
> I do not have an ATSC110 to test this with, so it is
> up to you guys to test the patches
> that I am providing, and make the appropriate
> changes to them as necessary.
> >> I think this is the only hdtv card that does have
> >> two RF connections.
> Actually, the FusionHDTV3 Gold-Q also has two rf
> inputs, in addition to
> the ATI HDTV Wonder.
> I hope this information helps you... PLEASE respond
> with some feedback.
> Cheers,
> Mike Krufky

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