Mailing List Archive: MythTV: Commits

Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E

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mythtv at cvs

Mar 9, 2010, 8:06 AM

Post #1 of 5 (740 views)
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Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E

#8157: unable to tune some dvb-s2 transponders on astra 19.2E
------------------------------+---------------------------------------------
Reporter: pik | Owner: ijr
Type: defect | Status: new
Priority: major | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------
Using svn 23700, I can tune all dvb-s transponders on that satellite, but
for some reasons tuning fails on some dvb-s2 transponders...

Example: 12.522 ghz, DVB-S2, 8PSK, SR 22000 should tune ok on astra but it
does not tune at all in my environment.

Surprisingly,this problem does not exist on hotbird 13E, it tunes ok on
all dvb-s2 transponders on hotbird.

I have done the same tests using Kaffeine v1.0 and it succeeds to tune on
all transponders on Astra be it dvb-s or dvb-s2, so this is why I stronfgy
suspect there is something is wrong with mythtv. It is not my antenna
either otherwise tuning would fail with Kaffeine

I am using twinhan dvb-s2 ADSP-400 card ( clone of technotrend S3200 ),
runing ubuntu karmic with kernel 2.6.31-20

Will post logs later

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/8157>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 9, 2010, 3:19 PM

Post #2 of 5 (719 views)
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Re: Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E [In reply to]

#8157: unable to tune some dvb-s2 transponders on astra 19.2E
------------------------------+---------------------------------------------
Reporter: pik | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: head
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------
Changes (by mdean):

* priority: major => minor
* status: new => infoneeded_new
* version: unknown => head

Comment:

Setting to infoneeded until logs are provided. I'm assuming SVN trunk
since you said only "svn 23700."

If you're using DiSEqC, please also see
http://svn.mythtv.org/trac/ticket/7728#comment:3 and verify that you're
configuring your system properly (and let us know if it is just a
configuration issue).

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/8157#comment:1>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 10, 2010, 12:12 AM

Post #3 of 5 (710 views)
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Re: Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E [In reply to]

#8157: unable to tune some dvb-s2 transponders on astra 19.2E
------------------------------+---------------------------------------------
Reporter: pik | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: head
Severity: medium | Mlocked: 0
------------------------------+---------------------------------------------

Comment(by pik):

After some further investigations I discovered that this problem is linked
to the latest version ( March 2010) of s2-liplianin drivers/modules that I
use for my dvb-s2 card on my sertup ( Ubuntu Karmic kernel 2.6.31-20- (
based on mantis driver vp1041 ) ( also known as Sky star HD 2 or
Technotrend 3200 S2 or Twinhan ADSP-400 ).

Falling back to an earlier version ( October 2009 ) solves the problem. I
Still think there is an issue with tyhe mythtv code since this problem
does not exist with Kaffeine. Something must be suboptimal somewhere in
the mythtv code.

Will not post the logs unless asked specifically.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/8157#comment:2>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 10, 2010, 12:20 AM

Post #4 of 5 (710 views)
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Re: Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E [In reply to]

mythtv at cvs

Apr 10, 2010, 3:46 PM

Post #5 of 5 (475 views)
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Re: Ticket #8157: unable to tune some dvb-s2 transponders on astra 19.2E [In reply to]

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