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Ticket #6022: DVB-T: encrypted OK, FTA no lock

  

 
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mythtv at cvs

Dec 23, 2008, 8:32 AM

Post #1 of 10 (1835 views)
Permalink
Ticket #6022: DVB-T: encrypted OK, FTA no lock
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Mlocked: 0
-------------------------------------------------+--------------------------
'''Summary'''

FTA channels cannot be locked on (l--).
Encrypted channels have no problem (LAMC).

Kaffeine can play both types: encrypted and unencrypted channels.

'''Description'''

FTA channels cannot be tune (locked?) while I have no problem with
encrypted channels. When using MythTV I see the following in the
/var/log/messages

{{{
Dec 23 16:31:50 mythtvbackend tda1004x: setting up plls for 53MHz sampling
clock
Dec 23 16:31:50 mythtvbackend tda1004x: found firmware revision 20 -- ok
Dec 23 16:31:53 mythtvbackend dvb_ca adapter 1: DVB CAM detected and
initialised successfully
}}}

When using kaffeine and tuning in FTA I see only:

{{{
Dec 23 16:31:50 mythtvbackend tda1004x: setting up plls for 53MHz sampling
clock
Dec 23 16:31:50 mythtvbackend tda1004x: found firmware revision 20 -- ok
}}}
while for encrypted channels I see:
{{{
Dec 23 16:31:50 mythtvbackend tda1004x: setting up plls for 53MHz sampling
clock
Dec 23 16:31:50 mythtvbackend tda1004x: found firmware revision 20 -- ok
Dec 23 16:31:53 mythtvbackend dvb_ca adapter 1: DVB CAM detected and
initialised successfully
}}}

'''Software'''

MythTV: 0.21_p19046

Kernel: 2.6.27-gentoo-r7 (SMP) i686 Intel(R) Pentium(R) 4 CPU 2.80GHz


'''Hardware:'''

- Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
Subsystem: ''Technotrend Systemtechnik GmbH DVB T-1500''
Flags: bus master, medium devsel, latency 66, IRQ 18
Memory at f8520000 (32-bit, non-prefetchable) [size=512]
Kernel driver in use: budget_ci dvb
Kernel modules: budget-ci

- CI from technotrend
- CAM Connax 4.00

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 27, 2009, 11:11 AM

Post #2 of 10 (1673 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------
Changes (by Dibblah):

* status: new => infoneeded_new


Comment:

Can you attach logs of both good and bad tune attempts from mythbackend -v
record,channel,dvbcam , please?

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:1>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 28, 2009, 11:36 AM

Post #3 of 10 (1672 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by Octavian Petre <octavsly [at] gmail>):

Here is the log. Since in my system I also have a DVB-S (FTA), you might
see some logs from there to.

The LiveTV procedure was :

{{{
channel '2' (DVB-S: FTA) :no issue

channel '204' (DVB-T: encrypted) :no issue!

channel '203' (DVB-T: FTA thus NOT encrypted) :ISSUE (no lock)
channel '202' (DVB-T: FTA thus NOT encrypted) :ISSUE (no lock)
channel '201' (DVB-T: FTA thus NOT encrypted) :ISSUE (no lock)
....
}}}

The only channels with the issue are 201,202,203 (DVB-T, FTA)

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:2>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 28, 2009, 2:40 PM

Post #4 of 10 (1672 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by anonymous):

Can you try the following and see if they individually make any
difference:

In mythtv-setup, input connections, set "Use quick tuning" to never
In mythtv-setup, capture cards, recording options, set "Max recordings" to
1, for all cards.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:3>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 29, 2009, 1:08 PM

Post #5 of 10 (1668 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by Octavian Petre <octavsly [at] gmail>):

Did all of that but no change.


Now I realize that it uses 474000000 frequency instead of 546000000.

In the channel editor I cannot see the frequency, so I could not see this
mistake.

I have changed the "mplexid" for those 3 channels (from corresponding
474MHz to 546MHz) and now when I watchg LiveTV I get LMs (partial lock).

I was thinking to rescan that frequency again but unfortunately I cannot
do that since mythtv-setup crashes in many different ways (segmentation
fault, freeze, etc.)
Do you have an idea on how to avoid this crash?

Best regards,
Octavian

For your reference:
Kaffeine shows:

{{{
Tuning to: Nederland 1 / autocount: 0
Using DVB device 1:0 "Philips TDA10046H DVB-T"
tuning DVB-T to 546000000 Hz
inv:2 bw:0 fecH:1 fecL:9 mod:3 tm:1 gi:3 hier:0
....... LOCKED.
NOUT: 1
dvbEvents 1:0 started
Tuning delay: 1110 ms
}}}

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:4>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 29, 2009, 1:24 PM

Post #6 of 10 (1664 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by sphery <mtdean [at] thirdcontact>):

Replying to [comment:4 Octavian Petre <octavsly [at] gmail>]:
> I was thinking to rescan that frequency again but unfortunately I cannot
do that since mythtv-setup crashes in many different ways (segmentation
fault, freeze, etc.)
> Do you have an idea on how to avoid this crash?

Pin the mythtv-setup process to a single core by starting mythtv-setup
with "taskset -c 0 mythtv-setup" (no quotes).

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:5>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Jan 29, 2009, 2:16 PM

Post #7 of 10 (1672 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by Octavian Petre <octavsly [at] gmail>):

Thanks for that option. it helped a lot.

It did not crash anymore, but always gave me "no signal" when scanning on
546MHz... until I used "ignore signal timeouts" option. Then, it found the
DVB-T FTA channels!!!!

However, when testing it in mythfrontend... surprise. It tries to lock on
"DVBChan(6:1): 474000000 qam_64 a 1/2 1/2 8 8 1/4 n v"

And indeed, after scanning the 546MHz I get two new transponders, one on
474MHz and one on 714MHz...

I am now a bit lost...Any idea what is happening?

Best regards,
Octavian

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:6>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

May 6, 2009, 12:50 PM

Post #8 of 10 (1467 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: closed
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution: invalid
Mlocked: 0 |
-------------------------------------------------+--------------------------
Changes (by danielk):

* status: infoneeded_new => closed
* resolution: => invalid


--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:7>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

May 10, 2009, 1:48 AM

Post #9 of 10 (1454 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly [at] gmail> | Owner: ijr
Type: defect | Status: closed
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution: invalid
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by octavsly [at] gmail):

The issue is still there. I can provide more information. Just let me know
how.

Best regards,
Octavian

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:8>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Nov 17, 2009, 1:27 AM

Post #10 of 10 (927 views)
Permalink
Re: Ticket #6022: DVB-T: encrypted OK, FTA no lock [In reply to]
#6022: DVB-T: encrypted OK, FTA no lock
-------------------------------------------------+--------------------------
Reporter: Octavian Petre <octavsly@…> | Owner: ijr
Type: defect | Status: closed
Priority: major | Milestone: 0.21.1
Component: mythtv | Version: unknown
Severity: medium | Resolution: invalid
Mlocked: 0 |
-------------------------------------------------+--------------------------

Comment(by Octavian <octavsly@…>):

This issues is fixed.

Useful attachments are present in #7102.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6022#comment:9>
MythTV <http://www.mythtv.org/>
MythTV
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