[mythtv-users] KWorld 115 (saa7134) HD -> analog = death

Larry Jones larry at foxgulch.com
Fri Jun 29 00:34:23 UTC 2007


Larry Jones wrote:
> Sean Goodpasture wrote:
>   
>> Actually I got this working...  Ugh :-)  Dontcha hate when you ask and 
>> then figure it out?
>>  
>> Anyway, to anyone that cares, I had to add /options dvb-core 
>> dvb_shutdown_timeout=0 /to my modules.conf, reboot and everything 
>> works fine (other than the XvMC segfault).
>>
>> Sean
>>  
>> On 6/26/07, *Sean Goodpasture* <goofygrin at gmail.com 
>> <mailto:goofygrin at gmail.com>> wrote:
>>
>>     I've got a couple KWorld 115's up and running, both analog (cable)
>>     and HD (QAM).
>>      
>>     If all 4 tuners (2 analog v4l, 2 DVB) are set up as separate
>>     cards, everything works great, except that myth will try and use
>>     the SD portion of an HD card, when it's already recording (bad,
>>     segfault, get to hard reboot).
>>      
>>     If I set the parentid on the 4vl input to it's corresponding DVB
>>     input (or vice-versa), then mytv is good from a scheduling
>>     perspective.
>>      
>>     However, there are two issues:
>>      
>>     1. When I switch from an HD channel to an SD channel, I get video
>>     for a split second, then black video and static audio.  Changing
>>     analog stations sometimes clears it up.
>>     2. The above actually causes a seg-fault -> exit mythfrontend if
>>     I've got XvMC turned on (latest nvidia drivers, 5200 card).
>>      
>>     Does anyone have a solution to #1?  I'm not horribly concerned
>>     about #2 because my front ends all don't run XvMC (my backend has
>>     to since it's only a P4 1.8 [it's got the 5200 in it].
>>      
>>     I'm running MythDora 4 and I've run yum update \*myth\* on this box.
>>     uname -a:
>>     Linux mythbackend1 2.6.20-1.2944.fc6 #1 SMP Tue Apr 10 18:46:45
>>     EDT 2007 i686 i686 i386 GNU/Linux
>>      
>>     mythbackend --version:
>>     Library API version: 0.20.20060828-4
>>     Source code version: Unknown
>>     Options compiled in:
>>      linux release using_xvmcw using_lmsensors using_v4l using_oss
>>     using_alsa using_arts using_jack using_ivtv using_firewire
>>     using_dbox2 using_hdhr using_ip_rec using_freebox using_live
>>     using_lirc using_joystick_menu using_dvb using_x11 using_xv
>>     using_xrandr using_xvmc using_xvmc_vld using_opengl_vsync
>>     using_opengl using_frontend using_backend using_bindings_perl
>>      
>>     Thanks!
>>
>>
>> ------------------------------------------------------------------------
>>
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>>   
>>     
> Sean,
>
> I'm curious about one thing.  I have a KWorld 110 card which refuses to 
> give me analog SD when run under plain vanilla MythDora 4.0.  HD DVB 
> works fine. All the OTA HD digital stations are received OK. I see 
> DanielK has a "fix" posted in the source which brings up the SD 
> configuration menu when you are on the Mythsetup  KWorld 110 DVB page 
> (which never shows up for me).   So how does the  KWorld 115 handle the 
> SD input? (Where in mythsetup is the analog portion of the 115 
> configured,  channels scanned... source selected, etc?)
>
> Also my KWorld 110 main chip is a philips  SAA7135  which loads as a  
> SAA7133.   Does your KWorld 115 use the SAA7135?  
> (http://www.nxp.com/acrobat_download/literature/9397/75010349.pdf)
>
> Thanks,
>
> Larry
>
>
>
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>
>   
Answering my own question for benefit of anyone else whose KWorld 
ATSC110 receives digital channels but not analog channels.   My problem 
was I tried to use the same video source for digital and analog.  Once I 
created  a separate source for analog and a different one for digital,  
I was able to scan in both digital and analog channels.    Live and learn

Larry


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