[mythtv-users] Off topic: Last resort for me. Can not get my dvb-c card to output video/audio on FC3, kernel 2.6.9-681

Örjan orjan at laxfiske.se
Mon Dec 20 17:59:26 UTC 2004


Richie Jarvis wrote:

> Mark Anderson wrote:
>
>> On Mon, 20 Dec 2004 08:07 am, Örjan wrote:
>>
>>> Hi !
>>> I want to build a digital multimedia system for my home based on mythtv
>>> with a client/server architecture.  Since i get my tv by cable 
>>> (digital)
>>> i have to use a (at least one) dvb card.
>>>
>>> Been having some serious trouble in getting my dvb-card to work under
>>> Fedora Core 3. Here is my setup:
>>> Fedora Core 3, Kernel: 2.6.9-681_FC3
>>> Hauppauge DVB-c premium card,CI and CAM (Hauppauge/Conax)
>>> Using dvb drivers in kernel. udev/sysfs doesn't make devices so i use
>>> the MAKEDEV-DVB.sh script from Linuxtv.
>>> (btw. card works fine under windows)
>>>
>>> lsmod gives:
>>> Module                  Size  Used by
>>> ves1820                11213  1
>>> dvb_ttpci              74741  3
>>> dvb_core               80873  5 ves1820,dvb_ttpci
>>> saa7146_vv             47425  1 dvb_ttpci
>>> video_buf              24261  1 saa7146_vv
>>> saa7146                21613  2 dvb_ttpci,saa7146_vv
>>> v4l1_compat            15941  1 saa7146_vv
>>> v4l2_common             9921  1 saa7146_vv
>>> videodev               13377  1 saa7146_vv
>>> ttpci_eeprom            6465  1 dvb_ttpci
>>>
>>> lspci gives:
>>> 02:03.0 Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
>>>
>>> dmesg output:
>>> DVB: registering new adapter (Technotrend/Hauppauge PCI rev2.1).
>>> DVB: AV7111(0) - firm f0240009, rtsl b0250018, vid 71010068, app 
>>> 8000261c
>>> DVB: AV7111(0) - firmware supports CI link layer interface
>>> DVB: VES1820(0): setup for tuner sp5659c
>>> DVB: VES1820(0): pwm=0x00
>>> DVB: registering frontend 0:0 (VES1820 based DVB-C frontend)...
>>>
>>> using dvb-apps/util/scan give me a channels.conf (i find almost every
>>> channel...read somewhere that i should check some timeouts to get a
>>> better scan result)
>>>
>>> using same channels.conf as input for czap and i get:
>>> [mythtv at localhost szap]$ ./czap -c channels.conf RTL -r
>>> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
>>> 23 RTL:274000000:INVERSION_AUTO:6875000:FEC_AUTO:QAM_64:1100:1101:207
>>> 23 RTL: f 274000000, s 6875000, i 2, fec 9, qam 3, v 0x44c, a 0x44d
>>> status 1f | signal b0b0 | snr efef | ber 009ffff6 | unc ffffffff |
>>> FE_HAS_LOCK
>>> status 1f | signal ffff | snr f0f0 | ber 009ffff6 | unc 00000000 |
>>> FE_HAS_LOCK
>>> status 1f | signal ffff | snr efef | ber 009ffff6 | unc 00000000 |
>>> FE_HAS_LOCK
>>>
>>> (status tells me i got good signal, little noise and that there is data
>>> on vdr0, trying to just do cat /dev/dvb/..../vdr0 gives output)
>>>
>>> then i try to view the stream in mplayer and nothing happens...see 
>>> below.
>>>
>>> i've also tried xine and did not get a picture there either.
>>> [mythtv]$ mplayer - < /dev/dvb/adapter0/dvr0
>>
>>
>>
>> I have never tried piping the output from the dvb device straight 
>> into mplayer but is suspect it will not work. Try using dvbstream and 
>> pipe it's output to mplayer, this works for me:
>>
>> dvbstream -o -ps -qam 64 512 650 1590 | mplayer -
>>
>> you will of course need to substitute the appropriate pids for you 
>> station (use scan -c to get the list of available pids)
>>
>> Cheers,
>> Mark
>> _______________________________________________
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>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>
>>
> Hi there - just been through the DVB-T route on FC3 - one thing you 
> must do is not use the MAKEDEV-DVB.sh script - as FC3 uses udev.  Read 
> the file udev.txt in the dvb-kernel cvs - 
> /DOWNLOAD-DIR/dvb-cvs/dvb-kernel/linux/Documentation/dvb/udev.txt - 
> that tells you how to setup udev to setup the device correct - 
> otherwise it won't play fair.
>
> Hope that helps,
>
> Cheers,
>
> Richie
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

Thanks for the reply! I'll try these things tonight and see what happens.
br,
Örjan


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