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* [linux-dvb] HVR-1800 failing to detect any QAM256 channels
@ 2008-04-30 17:03 Eric Cronin
  2008-04-30 18:34 ` Michael Krufky
  2008-04-30 18:55 ` Steven Toth
  0 siblings, 2 replies; 9+ messages in thread
From: Eric Cronin @ 2008-04-30 17:03 UTC (permalink / raw)
  To: linux-dvb


[-- Attachment #1.1: Type: text/plain, Size: 4156 bytes --]

Hello,

I have an HP Pavilion OEM'd HVR-1800 that I'm giving a shot at getting  
working (PVR-500 and HDHR are my production analog/digital inputs).

I'm running Mythbuntu 8.04 and have tried both with the bundled  
version of v4l-dvb modules and a hg copy from April 29, and both have  
the same problem:

The card is detected fine and /dev/dvb/* created.  When I run 'scan us- 
Cable-Standard-center-frequencies-QAM256' it detects nothing, even on  
frequencies which I know are QAM256 from the HDHR which is 12" of coax  
away from the HVR-1800.  Here is an example from the HDHR scan:

SCANNING: 759000000 (us-cable:118, us-irc:118)
LOCK: qam256 (ss=90 snq=52 seq=100)
PROGRAM: 1: 6.1 WPVI-HD
PROGRAM: 2: 10.1 WCAU-DT
PROGRAM: 3: 6.2 WPVI-SD
PROGRAM: 4: 6.3 WPVI-WX
PROGRAM: 5: 10.2 WX-PLUS

and from 'scan -v test-chan118' which has just 759000000 in it:

scanning test-chan118
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
 >>> tune to: 759000000:QAM_256
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!
 >>> tune to: 759000000:QAM_256 (tuning failed)
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

I have checked the physical connections best I can.  Connecting the  
HVR-1800's coax to the PVR-500 sees the analog side of things fine,  
and the correct jack on the HVR-1800 is being used.

I'm not sure where to go from here debugging things, any suggestions  
or more data I can provide?  The modprobe-produced info from dmesg is  
at the end of this message.

Thanks,
Eric

[67182.599444] cx23885 driver version 0.0.1 loaded
[67182.599631] ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 17 (level,  
low) -> IRQ 17
[67182.599870] CORE cx23885[0]: subsystem: 0070:7801, board: Hauppauge  
WinTV-HVR1800 [card=2,autodetected]
[67182.762076] cx23885[0]: i2c bus 0 registered
[67182.764615] tuner' 2-0042: chip found @ 0x84 (cx23885[0])
[67182.799857] tda829x 2-0042: could not clearly identify tuner  
address, defaulting to 60
[67182.823174] tda18271 2-0060: creating new instance
[67182.859178] TDA18271HD/C1 detected @ 2-0060
[67184.029322] tda829x 2-0042: type set to tda8295+18271
[67185.226752] cx23885[0]: i2c bus 1 registered
[67185.229777] msp3400' 3-0044: MSP5431H-^8 found @ 0x88 (cx23885[0])
[67185.229782] msp3400' 3-0044: MSP5431H-^8 supports radio, mode is  
autodetect and autoselect
[67185.229980] cx23885[0]: i2c bus 2 registered
[67185.257210] tveeprom 1-0050: Hauppauge model 78521, rev C1E9,  
serial# 2639463
[67185.257214] tveeprom 1-0050: MAC address is 00-0D-FE-28-46-67
[67185.257217] tveeprom 1-0050: tuner model is Philips 18271_8295 (idx  
149, type 54)
[67185.257220] tveeprom 1-0050: TV standards NTSC(M) ATSC/DVB Digital  
(eeprom 0x88)
[67185.257223] tveeprom 1-0050: audio processor is CX23887 (idx 42)
[67185.257226] tveeprom 1-0050: decoder processor is CX23887 (idx 37)
[67185.257228] tveeprom 1-0050: has radio, has no IR receiver, has no  
IR transmitter
[67185.257231] cx23885[0]: hauppauge eeprom: model=78521
[67185.343514] cx23885[0]/0: registered device video1 [v4l2]
[67186.513413] cx23885[0]: registered device video2 [mpeg]
[67186.513419] cx23885[0]: cx23885 based dvb card
[67186.544894] MT2131: successfully identified at address 0x61
[67186.544901] DVB: registering new adapter (cx23885[0])
[67186.544905] DVB: registering frontend 0 (Samsung S5H1409 QAM/8VSB  
Frontend)...
[67186.546383] cx23885_dev_checkrevision() Hardware revision = 0xb1
[67186.546396] cx23885[0]/0: found at 0000:02:00.0, rev: 15, irq: 17,  
latency: 0, mmio: 0xf9e00000
[67186.546407] PCI: Setting latency timer of device 0000:02:00.0 to 64

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_______________________________________________
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linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-04-30 17:03 [linux-dvb] HVR-1800 failing to detect any QAM256 channels Eric Cronin
@ 2008-04-30 18:34 ` Michael Krufky
  2008-04-30 18:36   ` Michael Krufky
  2008-04-30 18:55 ` Steven Toth
  1 sibling, 1 reply; 9+ messages in thread
From: Michael Krufky @ 2008-04-30 18:34 UTC (permalink / raw)
  To: Eric Cronin; +Cc: linux-dvb

2008/4/30 Eric Cronin <ecronin@gizmolabs.org>:
>  I have an HP Pavilion OEM'd HVR-1800 that I'm giving a shot at getting
> working (PVR-500 and HDHR are my production analog/digital inputs).
>
>  I'm running Mythbuntu 8.04 and have tried both with the bundled version of
> v4l-dvb modules and a hg copy from April 29, and both have the same problem:
>
>  The card is detected fine and /dev/dvb/* created.  When I run 'scan
> us-Cable-Standard-center-frequencies-QAM256' it detects nothing, even on
> frequencies which I know are QAM256 from the HDHR which is 12" of coax away
> from the HVR-1800.  Here is an example from the HDHR scan:
>
>  SCANNING: 759000000 (us-cable:118, us-irc:118)
>  LOCK: qam256 (ss=90 snq=52 seq=100)
>  PROGRAM: 1: 6.1 WPVI-HD
>  PROGRAM: 2: 10.1 WCAU-DT
>  PROGRAM: 3: 6.2 WPVI-SD
>  PROGRAM: 4: 6.3 WPVI-WX
>  PROGRAM: 5: 10.2 WX-PLUS
>
>  and from 'scan -v test-chan118' which has just 759000000 in it:
>
>  scanning test-chan118
>  using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>  >>> tune to: 759000000:QAM_256
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  WARNING: >>> tuning failed!!!
>  >>> tune to: 759000000:QAM_256 (tuning failed)
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  >>> tuning status == 0x00
>  WARNING: >>> tuning failed!!!
>  ERROR: initial tuning failed
>  dumping lists (0 services)
>  Done.
>
>  I have checked the physical connections best I can.  Connecting the
> HVR-1800's coax to the PVR-500 sees the analog side of things fine, and the
> correct jack on the HVR-1800 is being used.
>
>  I'm not sure where to go from here debugging things, any suggestions or
> more data I can provide?  The modprobe-produced info from dmesg is at the
> end of this message.


Eric,

When you use the scan command to scan for QAM channels, you must
specify -a2, to signify that you are scanning digital cable.

Try that -- does that work?

-Mike

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-04-30 18:34 ` Michael Krufky
@ 2008-04-30 18:36   ` Michael Krufky
  2008-04-30 20:54     ` Eric Cronin
  0 siblings, 1 reply; 9+ messages in thread
From: Michael Krufky @ 2008-04-30 18:36 UTC (permalink / raw)
  To: Eric Cronin; +Cc: linux-dvb

On Wed, Apr 30, 2008 at 2:34 PM, Michael Krufky <mkrufky@linuxtv.org> wrote:
> 2008/4/30 Eric Cronin <ecronin@gizmolabs.org>:
>
>
> >  I have an HP Pavilion OEM'd HVR-1800 that I'm giving a shot at getting
>  > working (PVR-500 and HDHR are my production analog/digital inputs).
>  >
>  >  I'm running Mythbuntu 8.04 and have tried both with the bundled version of
>  > v4l-dvb modules and a hg copy from April 29, and both have the same problem:
>  >
>  >  The card is detected fine and /dev/dvb/* created.  When I run 'scan
>  > us-Cable-Standard-center-frequencies-QAM256' it detects nothing, even on
>  > frequencies which I know are QAM256 from the HDHR which is 12" of coax away
>  > from the HVR-1800.  Here is an example from the HDHR scan:
>  >
>  >  SCANNING: 759000000 (us-cable:118, us-irc:118)
>  >  LOCK: qam256 (ss=90 snq=52 seq=100)
>  >  PROGRAM: 1: 6.1 WPVI-HD
>  >  PROGRAM: 2: 10.1 WCAU-DT
>  >  PROGRAM: 3: 6.2 WPVI-SD
>  >  PROGRAM: 4: 6.3 WPVI-WX
>  >  PROGRAM: 5: 10.2 WX-PLUS
>  >
>  >  and from 'scan -v test-chan118' which has just 759000000 in it:
>  >
>  >  scanning test-chan118
>  >  using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>  >  >>> tune to: 759000000:QAM_256
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  WARNING: >>> tuning failed!!!
>  >  >>> tune to: 759000000:QAM_256 (tuning failed)
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  >>> tuning status == 0x00
>  >  WARNING: >>> tuning failed!!!
>  >  ERROR: initial tuning failed
>  >  dumping lists (0 services)
>  >  Done.
>  >
>  >  I have checked the physical connections best I can.  Connecting the
>  > HVR-1800's coax to the PVR-500 sees the analog side of things fine, and the
>  > correct jack on the HVR-1800 is being used.
>  >
>  >  I'm not sure where to go from here debugging things, any suggestions or
>  > more data I can provide?  The modprobe-produced info from dmesg is at the
>  > end of this message.
>
>
>  Eric,
>
>  When you use the scan command to scan for QAM channels, you must
>  specify -a2, to signify that you are scanning digital cable.
>
>  Try that -- does that work?


My bad -- I meant, "-A 2"  (capitol A, space, 2)

-Mike

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-04-30 17:03 [linux-dvb] HVR-1800 failing to detect any QAM256 channels Eric Cronin
  2008-04-30 18:34 ` Michael Krufky
@ 2008-04-30 18:55 ` Steven Toth
  1 sibling, 0 replies; 9+ messages in thread
From: Steven Toth @ 2008-04-30 18:55 UTC (permalink / raw)
  To: Eric Cronin; +Cc: linux-dvb

Eric Cronin wrote:
> Hello,
> 
> I have an HP Pavilion OEM'd HVR-1800 that I'm giving a shot at getting 
> working (PVR-500 and HDHR are my production analog/digital inputs).
> 
> I'm running Mythbuntu 8.04 and have tried both with the bundled version 
> of v4l-dvb modules and a hg copy from April 29, and both have the same 
> problem:
> 
> The card is detected fine and /dev/dvb/* created.  When I run 'scan 
> us-Cable-Standard-center-frequencies-QAM256' it detects nothing, even on 
> frequencies which I know are QAM256 from the HDHR which is 12" of coax 
> away from the HVR-1800.  Here is an example from the HDHR scan:
> 

<snip>

> [67185.229777] msp3400' 3-0044: MSP5431H-^8 found @ 0x88 (cx23885[0])
> [67185.229782] msp3400' 3-0044: MSP5431H-^8 supports radio, mode is 
> autodetect and autoselect

This looks odd, but it should effect your digital scanning. MSP5431 
attached itself to the place when the cx25840 driver should be 
attaching. This is break analog support for you.

I'll have to look into this.

- Steve



_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-04-30 18:36   ` Michael Krufky
@ 2008-04-30 20:54     ` Eric Cronin
  2008-05-01  0:20       ` Michael Krufky
  0 siblings, 1 reply; 9+ messages in thread
From: Eric Cronin @ 2008-04-30 20:54 UTC (permalink / raw)
  To: Michael Krufky; +Cc: linux-dvb


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On Apr 30, 2008, at 2:36 PM, Michael Krufky wrote:

>>
>> Eric,
>>
>> When you use the scan command to scan for QAM channels, you must
>> specify -a2, to signify that you are scanning digital cable.
>>
>> Try that -- does that work?
>
>
> My bad -- I meant, "-A 2"  (capitol A, space, 2)
>
> -Mike
>

Sorry, forgot to include that I'd tried -A {1,2,3} also:

~$ scan -v -A 2  test-chan118
scanning test-chan118
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
 >>> tune to: 759000000:QAM_256
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!
 >>> tune to: 759000000:QAM_256 (tuning failed)
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.


Thanks,
Eric

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_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-04-30 20:54     ` Eric Cronin
@ 2008-05-01  0:20       ` Michael Krufky
  2008-05-01  3:19         ` Eric Cronin
  0 siblings, 1 reply; 9+ messages in thread
From: Michael Krufky @ 2008-05-01  0:20 UTC (permalink / raw)
  To: Eric Cronin; +Cc: linux-dvb

Eric Cronin wrote:
>
> On Apr 30, 2008, at 2:36 PM, Michael Krufky wrote:
>
>>>
>>> Eric,
>>>
>>> When you use the scan command to scan for QAM channels, you must
>>> specify -a2, to signify that you are scanning digital cable.
>>>
>>> Try that -- does that work?
>>
>>
>> My bad -- I meant, "-A 2"  (capitol A, space, 2) 

scan -A 2 -vvv dvb-apps/util/scan/atsc/us-Cable-Standard-whatever >
channels.conf

Is THAT what you're doing to scan ?


It looks like what you were doing was scan a tuned frequency for pids. 
If you want to do THAT, then you must actually be tuned to the given
frequency.  you need to azap SOME_CHANNEL -r, and keep that running
before attempting to run 'scan -c' ...  I think you should try the scan
command that I mentioned above.

HTH,

Mike

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-05-01  0:20       ` Michael Krufky
@ 2008-05-01  3:19         ` Eric Cronin
  2008-05-01  3:24           ` Michael Krufky
  0 siblings, 1 reply; 9+ messages in thread
From: Eric Cronin @ 2008-05-01  3:19 UTC (permalink / raw)
  To: Michael Krufky; +Cc: linux-dvb


[-- Attachment #1.1: Type: text/plain, Size: 2409 bytes --]


On Apr 30, 2008, at 8:20 PM, Michael Krufky wrote:
> Eric Cronin wrote:
>>
>> On Apr 30, 2008, at 2:36 PM, Michael Krufky wrote:
>>
>>>>
>>>> Eric,
>>>>
>>>> When you use the scan command to scan for QAM channels, you must
>>>> specify -a2, to signify that you are scanning digital cable.
>>>>
>>>> Try that -- does that work?
>>>
>>>
>>> My bad -- I meant, "-A 2"  (capitol A, space, 2)
>
> scan -A 2 -vvv dvb-apps/util/scan/atsc/us-Cable-Standard-whatever >
> channels.conf
>
> Is THAT what you're doing to scan ?
>
>
> It looks like what you were doing was scan a tuned frequency for pids.
> If you want to do THAT, then you must actually be tuned to the given
> frequency.  you need to azap SOME_CHANNEL -r, and keep that running
> before attempting to run 'scan -c' ...  I think you should try the  
> scan
> command that I mentioned above.
>
> HTH,
>
> Mike
>


I was only using one -v, but the scan file isn't the problem.  It is  
just the single line out of /usr/share/doc/dvb-utils/examples/scan/ 
atsc/us-Cable-Standard-center-frequencies-QAM256 corresponding to a  
known good frequency.  Otherwise it scans from 0-70 which are all NTSC  
and gets annoying on repeated attempts...

Adding two more -v's doesn't change anything, status is always 0x00  
and nothing gets written to STDOUT (channels.conf)

~$ scan -A 2 -vvv /usr/share/doc/dvb-utils/examples/scan/atsc/us-Cable- 
Standard-center-frequencies-QAM256 > channels.conf
scanning /usr/share/doc/dvb-utils/examples/scan/atsc/us-Cable-Standard- 
center-frequencies-QAM256
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
 >>> tune to: 57000000:QAM_256
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!

...

 >>> tune to: 801000000:QAM_256 (tuning failed)
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
 >>> tuning status == 0x00
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.

~$ wc channels.conf
0 0 0 channels.conf

Thanks,
Eric

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^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-05-01  3:19         ` Eric Cronin
@ 2008-05-01  3:24           ` Michael Krufky
  2008-05-01 14:41             ` Eric Cronin
  0 siblings, 1 reply; 9+ messages in thread
From: Michael Krufky @ 2008-05-01  3:24 UTC (permalink / raw)
  To: Eric Cronin; +Cc: linux-dvb

Eric Cronin wrote:
>
> On Apr 30, 2008, at 8:20 PM, Michael Krufky wrote:
>> Eric Cronin wrote:
>>>
>>> On Apr 30, 2008, at 2:36 PM, Michael Krufky wrote:
>>>
>>>>>
>>>>> Eric,
>>>>>
>>>>> When you use the scan command to scan for QAM channels, you must
>>>>> specify -a2, to signify that you are scanning digital cable.
>>>>>
>>>>> Try that -- does that work?
>>>>
>>>>
>>>> My bad -- I meant, "-A 2"  (capitol A, space, 2)
>>
>> scan -A 2 -vvv dvb-apps/util/scan/atsc/us-Cable-Standard-whatever >
>> channels.conf
>>
>> Is THAT what you're doing to scan ?
>>
>>
>> It looks like what you were doing was scan a tuned frequency for pids.
>> If you want to do THAT, then you must actually be tuned to the given
>> frequency.  you need to azap SOME_CHANNEL -r, and keep that running
>> before attempting to run 'scan -c' ...  I think you should try the scan
>> command that I mentioned above.
>>
>> HTH,
>>
>> Mike
>>
>
>
> I was only using one -v, but the scan file isn't the problem.  It is
> just the single line out of
> /usr/share/doc/dvb-utils/examples/scan/atsc/us-Cable-Standard-center-frequencies-QAM256
> corresponding to a known good frequency.  Otherwise it scans from 0-70
> which are all NTSC and gets annoying on repeated attempts...
>
> Adding two more -v's doesn't change anything, status is always 0x00
> and nothing gets written to STDOUT (channels.conf)
>
> ~$ scan -A 2 -vvv

The -v is just for verbosity.

My question should have been, "did you give it a chance to scan through
the entire scan file?

-Mike



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^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [linux-dvb] HVR-1800 failing to detect any QAM256 channels
  2008-05-01  3:24           ` Michael Krufky
@ 2008-05-01 14:41             ` Eric Cronin
  0 siblings, 0 replies; 9+ messages in thread
From: Eric Cronin @ 2008-05-01 14:41 UTC (permalink / raw)
  To: Michael Krufky; +Cc: linux-dvb


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On Apr 30, 2008, at 11:24 PM, Michael Krufky wrote:
> Eric Cronin wrote:
>>
>> On Apr 30, 2008, at 8:20 PM, Michael Krufky wrote:
>>> Eric Cronin wrote:
>>>>
>>>> On Apr 30, 2008, at 2:36 PM, Michael Krufky wrote:
>>>>
>>>>>>
>>>>>> Eric,
>>>>>>
>>>>>> When you use the scan command to scan for QAM channels, you must
>>>>>> specify -a2, to signify that you are scanning digital cable.
>>>>>>
>>>>>> Try that -- does that work?
>>>>>
>>>>>
>>>>> My bad -- I meant, "-A 2"  (capitol A, space, 2)
>>>
>>> scan -A 2 -vvv dvb-apps/util/scan/atsc/us-Cable-Standard-whatever >
>>> channels.conf
>>>
>>> Is THAT what you're doing to scan ?
>>>
>>>
>>> It looks like what you were doing was scan a tuned frequency for  
>>> pids.
>>> If you want to do THAT, then you must actually be tuned to the given
>>> frequency.  you need to azap SOME_CHANNEL -r, and keep that running
>>> before attempting to run 'scan -c' ...  I think you should try the  
>>> scan
>>> command that I mentioned above.
>>>
>>> HTH,
>>>
>>> Mike
>>>
>>
>>
>> I was only using one -v, but the scan file isn't the problem.  It is
>> just the single line out of
>> /usr/share/doc/dvb-utils/examples/scan/atsc/us-Cable-Standard- 
>> center-frequencies-QAM256
>> corresponding to a known good frequency.  Otherwise it scans from  
>> 0-70
>> which are all NTSC and gets annoying on repeated attempts...
>>
>> Adding two more -v's doesn't change anything, status is always 0x00
>> and nothing gets written to STDOUT (channels.conf)
>>
>> ~$ scan -A 2 -vvv
>
> The -v is just for verbosity.
>
> My question should have been, "did you give it a chance to scan  
> through
> the entire scan file?
>
> -Mike
>

Yes.

Thanks,
Eric


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^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2008-05-01 14:42 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-04-30 17:03 [linux-dvb] HVR-1800 failing to detect any QAM256 channels Eric Cronin
2008-04-30 18:34 ` Michael Krufky
2008-04-30 18:36   ` Michael Krufky
2008-04-30 20:54     ` Eric Cronin
2008-05-01  0:20       ` Michael Krufky
2008-05-01  3:19         ` Eric Cronin
2008-05-01  3:24           ` Michael Krufky
2008-05-01 14:41             ` Eric Cronin
2008-04-30 18:55 ` Steven Toth

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