Black screen and no audio on HDTV channels

rak · 2008-10-08, 23:11

TV-Server Version: 1.0RC2
MediaPortal Version: 1.0RC2
MediaPortal Skin: Blue Two
Windows Version: Vista
CPU Type: AMD X2 BE-2400
HDD:
Memory:
Motherboard: Gigabyte GA-MA78GM-S2H
Motherboard Chipset: ATI
Motherboard Bios:
Video Card: integrated
Video Card Driver:
Sound Card: integrated Realtek ALC889A
Sound Card AC3:
Sound Card Driver:
1. TV Card: KWorld 310RF
1. TV Card Type: dual hybrid DVB-T/analog
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection:

Hi, I have problems with watching HD channels. I can tune them, but when I open preview in TvServer Cfg, I have only black screen and no audio (the same in MP). If I look at graph, the live1-0.ts.tsbuffer reports 1440x544, 0bits for video and 48KHz 0bit for audio. In original SW from KWorld I can see the HD channels.

globaldonkey · 2008-10-10, 06:57

What decoder is shown on the graph?

rak · 2008-10-10, 10:38

it was ffdshow. But in MP I've tried both coreavc and ffdshow without any success. In the ffdshow in the info page it does not show any info about the input stream. Is it normal, that the live1-0.ts.tsbuffer reports 0bit?

I suppose that the TV server builds another graph to receive data from TV card. Is this true? I cannot see it in graphedit.

Update: Just yesterday I noticed, that I can hear audio on one of the two channels, but still no video.

globaldonkey · 2008-10-10, 11:56

I'm not sure what the 0bit is about. Where do you see that?

There isn't another graph. With DVB cards, the transport stream is taken straight off the DVB card and written to the hard drive. The beauty of all digital.

Where are you setting the codec. In MP config? Make sure you're setting CoreAVC for h.264 only.

I notice you've got a 780G chipset board. Maybe take a look at your Catalyst drivers too. They can be problematic.

Maybe post a screen capture of your graph.

cbadk · 2008-10-11, 23:34

2008-10-08 23:06:37.575427 [25]: **************************************************
2008-10-08 23:06:37.575427 [25]: ***** SIGNAL LEVEL: 35, SIGNAL QUALITY: 35 *****
2008-10-08 23:06:37.575427 [25]: **************************************************

could be this maby!

rak · 2008-10-14, 13:45

Now I can see one of the two channel with Cyberlink PowerDVD 8 H.264 decoder. Neither FFDshow nor CoreAVC works. The CoreAVC did not connect in the graph, FFDshow connects, but does not recognize the video. I think it is due to invalid video type, that is reported by the tsreader on the video pin.

When switching to the second channel, it mostly shows only first bricked image and nothing more, the bricked image is freezed. Sometimes is plays the video, but not very offen.

FlipGer · 2008-10-14, 15:09

Hi,

HD channels work on my system only with the decoders delivered with my TV card: MainConcept
All other decoders I tried (CoreAVC, ffdshow) gave me similar results as yours: black picture with or without audio.

So its mainly seems to be a codec problem.

Flip.

2008-10-11, 23:34	#5 (permalink)
cbadk Portal Member Join Date: Nov 2007 Location: Denmark Age: 25 Posts: 43 Thanks: 0 Thanked 0 Times in 0 Posts Country: My System	2008-10-08 23:06:37.575427 [25]: ************************************************ 2008-10-08 23:06:37.575427 [25]: * SIGNAL LEVEL: 35, SIGNAL QUALITY: 35 * 2008-10-08 23:06:37.575427 [25]: ********************************************** could be this maby! __________________ _____________________________ Best Regards, Claus Server:** Asus P5B-VM SE Intel Pentium 4 3.0 GHz Dualcore 3 Gb DDR2 800 Mhz Ram 250 GB SATA HDD 120 GB ATA 1.5 GB RAMdisk for TV-temp

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2008-10-10, 06:57	#2 (permalink)
globaldonkey Portal Member Join Date: Apr 2007 Posts: 310 Thanks: 9 Thanked 7 Times in 7 Posts Country: My System	What decoder is shown on the graph?

2008-10-10, 10:38	#3 (permalink)
rak Portal Member Join Date: Mar 2008 Posts: 33 Thanks: 2 Thanked 0 Times in 0 Posts Country:	it was ffdshow. But in MP I've tried both coreavc and ffdshow without any success. In the ffdshow in the info page it does not show any info about the input stream. Is it normal, that the live1-0.ts.tsbuffer reports 0bit? I suppose that the TV server builds another graph to receive data from TV card. Is this true? I cannot see it in graphedit. Update: Just yesterday I noticed, that I can hear audio on one of the two channels, but still no video.

2008-10-10, 11:56	#4 (permalink)
globaldonkey Portal Member Join Date: Apr 2007 Posts: 310 Thanks: 9 Thanked 7 Times in 7 Posts Country: My System	I'm not sure what the 0bit is about. Where do you see that? There isn't another graph. With DVB cards, the transport stream is taken straight off the DVB card and written to the hard drive. The beauty of all digital. Where are you setting the codec. In MP config? Make sure you're setting CoreAVC for h.264 only. I notice you've got a 780G chipset board. Maybe take a look at your Catalyst drivers too. They can be problematic. Maybe post a screen capture of your graph.

2008-10-14, 13:45	#6 (permalink)
rak Portal Member Join Date: Mar 2008 Posts: 33 Thanks: 2 Thanked 0 Times in 0 Posts Country:	Now I can see one of the two channel with Cyberlink PowerDVD 8 H.264 decoder. Neither FFDshow nor CoreAVC works. The CoreAVC did not connect in the graph, FFDshow connects, but does not recognize the video. I think it is due to invalid video type, that is reported by the tsreader on the video pin. When switching to the second channel, it mostly shows only first bricked image and nothing more, the bricked image is freezed. Sometimes is plays the video, but not very offen.

2008-10-14, 15:09	#7 (permalink)
FlipGer Super Moderator Join Date: Apr 2004 Location: Leipzig, Germany Age: 33 Posts: 2,282 Thanks: 33 Thanked 55 Times in 41 Posts Country: My System	Hi, HD channels work on my system only with the decoders delivered with my TV card: MainConcept All other decoders I tried (CoreAVC, ffdshow) gave me similar results as yours: black picture with or without audio. So its mainly seems to be a codec problem. Flip.