Re: KWORLD ATSC 110 TUNING

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John Ferlatte wrote:
Michael:

After reading the last email with my glasses on, I went through the
steps to get the nxt2004 firmware (I somehow missed that) and it
loaded when the scan began.  I managed to get a lock on several of the
stations.

Not that I'm greedy, but any ideas on why I need to unload and reload
saa7134-dvb ???

John

  
The safest way to unload a module is "modprobe -r" and it will unload that module plus dependencies that may have loaded.

Maybe check in your /etc directory for a modprobe.conf.local of some sort that is causing other modules to load as a pre-requisite to the saa7134 module.

I run Suse and I have a modprobe.d directory that had some weird stuff in a modprobe config file that created all sorts of btv module dependencies.

Curt


On 2/28/06, John Ferlatte <j.ferlatte@xxxxxxxxx> wrote:
  
Michael:
Thanks for the quick reply.
I followed your HowTo but when I tried the atscscan.. I got the
following message

"main:2228: FATAL: failed to open '/dev/dvb/adapter0/frontend0': 16
Device or resource busy"

I then unloaded saa7134-dvb using the force option (rmmod saa7134-dvb
-f) and reloaded it. The scan process then started.

I tried both the ATSC and NTSC frequences on BOTH antenna ports on the
card, and didn't get one single channel defined in my channels.conf

Just to avert any issues about getting a signal, without moving my
antenna, I plugged in a ATSC STB and was able to receive 4 different
channels ranging in strength form 65% to 85%

Any idea's what I doing wrong?

Am I loaded the drivers in the wrong order?

BTW, I'm located in Toronto, Canada

Regards,

John

On 2/28/06, Michael Krufky <mkrufky@xxxxxxxxxxx> wrote:
    
John Ferlatte wrote:
      
Michael:

I apologize in advance if asking you about the KWORLD ATSC 110 is
inapproriate, however I see you name everywhere in discussion threads
as you appear to be the developer. Looking through the threads, you
also mention that you have ATSC working!
        
I am not the developer for this particular device, but I am the
UNofficial linux-atsc maintainer, and I've been helping the developers
with this over email.  I HAVE written code to support AVerTV HD a180,
which is similar in design, but not exactly the same.
      
The threads have been VERY helpful, but I've been trying for DAYS
trying to get this working. The NTSC stuff works, SVideo and Comp
work. I just can't seem to get the ATSC tuner working.
        
I wrote a quick howto @ http://linuxtv.org/~mkrufky/atscscan
      
I've downloaded the latest Mercurial tree (as of
yesterday) and managed to get all of the drivers loaded.
        
Good -- You'll need this, since the driver will not go into the kernel
until 2.6.17, the earliest.
      
I'm running  2.6.15.4 <http://2.6.15.4> Kernel, Knoppmyth....

Every time I try to do an atscscan
/usr/local/share/dvb/scan/atsc/us-NTSC-center-frequencies-8VSB, all I
get is:
---snip
        
tune to: 701000000:8VSB (tuning failed)
              
WARNING: >>> tuning failed!!!
        
tune to: 707000000:8VSB
              
WARNING: filter timeout pid 0x0000
WARNING: filter timeout pid 0x1ffb
        
[snip]

Try another scan file... The "NTSC CENTER FREQUENCIES" file works for
me, but the "ATSC CENTER FREQUENCIES" file does not ..... other users
have reported the exact opposite -- it depends on your area.  I am in
Brooklyn, New York.  Where are you located?
      
Does the tuning failed message mean that the tuner modules didn't
work, or that there was simply no signal on that channel?
        
no signal
      
Here is part of my dmesg showing the v4l and dvb modules, is this the
way it's supposed to look?

Linux video capture interface: v1.00
saa7130/34: v4l2 driver version 0.2.14 loaded
ACPI: PCI Interrupt 0000:00:09.0[A] -> GSI 16 (level, low) -> IRQ 18
saa7133[0]: found at 0000:00:09.0, rev: 240, irq: 18, latency: 64,
mmio: 0xdfffd800
saa7133[0]: subsystem: 17de:7350, board: Kworld ATSC110
[card=90,autodetected]
saa7133[0]: board init: gpio is 100
saa7133[0]: i2c eeprom 00: de 17 50 73 ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff
saa7133[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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 1-0061: chip found @ 0xc2 (saa7133[0])
tuner 1-0061: type set to 68 (Philips TUV1236D ATSC/NTSC dual in)
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
nxt200x: NXT2004 Detected
DVB: registering new adapter (saa7133[0]).
DVB: registering frontend 0 (Nextwave NXT200X VSB/QAM frontend)...
        
Yup... Looks good, although I see that the tda9887 does not report
anything... just as Curt says.  Maybe we need some special handling for
it......  Any ideas, Hartmut, Hermann?
      
Again, I apologize for bugging on this, I'm not sure how to post
messages lists that I saw you threads on.
        
Yes, generally I dislike private emails like this, but I understand your
situation...  For information on how to subscribe to both video4linux
and linux-dvb lists (cc's added) , please go to:

http://linuxtv.org/lists

... there you will find links to:

http://linuxtv.org/cgi-bin/mailman/listinfo  -- linux-dvb
https://www.redhat.com/mailman/listinfo/video4linux-list  -- video4linux

Please subscribe to these lists before you reply to this email.  I have
added cc's to the lists, but the linux-dvb list is subscriber-only, and
will require your registration before you can post to it.  ...and
remember to use REPLY-TO-ALL when replying.

I hope this helps,

Michael Krufky



      

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