Stuttering Live TV and Recordings with TV-Server 1.0.1 and AMD 780G

thecubist · 2009-04-22, 22:12

TV-Server Version: 1.0.1
MediaPortal Version: 1.0.1
MediaPortal Skin: Blue3
Windows Version: XP Home SP3
CPU Type: AMD Athlon X2 5050e
HDD: Samsung 250 GB
Memory: 2048 MB DDR2-800
Motherboard: ASUS M3A78-EM
Video Card: Onboard ATI Radeon 3200 (AMD 780G)
Video Card Driver: 8.600.00
Sound Card: Onboard SPDIF (coaxial) out
Sound Card AC3: Onboard coaxial out
Sound Card Driver:
1. TV Card: TechniSat SkyStar 2
1. TV Card Type: DVB-S
1. TV Card Driver: 4.5.0.0
MPEG2 Video Codec: MPC (Gabest)
MPEG2 Audio Codec: MPC - MPA
h.264 Video Codec: none
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case: My own CaseCon
Cooling:
Power Supply:
Remote: Medion X10
TV: Philips 20" LCD Monitor and Benq Beamer
TV - HTPC Connection: VGA and DVI

I am new in the forum so first of all I want to thank all making MediaPortal possible.
After upgrading my hardware and installing a single seat client server configuration for the first time, I encounter serious stuttering problems.
The video stuttering occurs when watching live tv, in some rare cases also some coloured big squared artefacts are shown. The sound is also interrupted which makes watching tv almost impossible.
The stuttering is obviously also recorded, when rewinding a recording, the stuttering occours always again at the same time.
CPU usage is about between 10 and 40% when watching TV and does not rise when the stuttering occours.
Watching tv with the dvbviewer works perfectly, so the sat signal quality seems sufficient.

I honestly promise to donate for MediaPortal if anybody out there could help me to make it run properly!
Thanks in advance,
thecubist

thecubist · 2009-04-24, 21:27

I installed "amd dual core optimiser" as suggested in
http://forum.team-mediaportal.com/ge...tml#post395802 but it does not fix the problem.
When starting TV sound and image is fine for some time and later the stuttering starts, frequency differs from time to time ...
I disabled virus scanner (thought it might disturb the time shifting) and Cool & Quiet ... none off these changes was helpfull.

Are there more things I should try???
Please help me, I want to watch TV again!

Manuelito · 2009-04-25, 15:35

tested by checking "use exclusive mode" in "directshow filters control"

thecubist · 2009-04-25, 23:54

"use exclusive mode" is checked ...
meanwhile I experimented with almost every available settings, checked latency times which are at about 1000 ms and reduce to about 500 ms when the skystar2 is disabled. unfortunately this is no solution for watching tv ;-)
the interesting news: stuttering is strongly reduced (almost completely gone) after REDUCING cpu frequency! I use crystalcpuid tool with multplier management to underclock the cpu. the maximum cpu frequency was 2600Mhz (nominal cpu spec). I reduced it to 2000Mhz and though I don't understand why, things are better now. I found this solution by observing cpu frequency while watching tv and found, that stuttering occured only, when the cpu frequency rised to the maximum value.
anybody out there, who can explain this strange effect?

thecubist · 2009-05-10, 21:06

Today there's stuttering again ;-(
I am watching tv while recording the same program, unfortunately, there are these anoying interruptions again, video stops and there is no sound for a moment then.
By the way: upgraded to MediaPortal 1.0.2 yesterday ...

Really nobody out there with a solution for that?

thecubist · 2009-05-11, 19:45

Me again, today I am watching tv without recording and, unfortunately, the same problem ...
Does anybody run MediaPortal on a ASUS M3A78-EM using onboard graphics? If so, which DVB-S card do you use?

orph · 2009-05-13, 23:25

Money's on you're having the same issue as this thread.

1080i material not deinterlacing under 1.0.1.0

thecubist · 2009-05-14, 17:56

I don't think it's the same problem, since I am far away from 1080 HD, in good old germany it is good old PAL tv.
Would these deinterlacing issues occur always at the same time in recordings or timeshift? I still think, it's something about the tv-server, since the stuttering seems to be recorded also ...

Manuelito · 2009-05-14, 20:38

Have you tried other audio devices or codes?. For example, using the ffdshow mp3lib. For trying ....

winstonc69 · 2009-05-14, 22:07

Hi Cubist,

Just upgraded my mediaportal TV-server to a Gigabyte 780G chipset mb (due to hardware failure) and seem to be having similar problems to you. Changing codecs within mediaportal has had no effect.

In may case however, viewing back the recordings in another application (wmp) exibits non of the stuttering. This was using a standard network share, could it be RTSP within mediaportal?

Will experiment some more & let you know if I find a solution.

2009-04-22, 22:12	#1 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	Stuttering Live TV and Recordings with TV-Server 1.0.1 and AMD 780G TV-Server Version: 1.0.1 MediaPortal Version: 1.0.1 MediaPortal Skin: Blue3 Windows Version: XP Home SP3 CPU Type: AMD Athlon X2 5050e HDD: Samsung 250 GB Memory: 2048 MB DDR2-800 Motherboard: ASUS M3A78-EM Video Card: Onboard ATI Radeon 3200 (AMD 780G) Video Card Driver: 8.600.00 Sound Card: Onboard SPDIF (coaxial) out Sound Card AC3: Onboard coaxial out Sound Card Driver: 1. TV Card: TechniSat SkyStar 2 1. TV Card Type: DVB-S 1. TV Card Driver: 4.5.0.0 MPEG2 Video Codec: MPC (Gabest) MPEG2 Audio Codec: MPC - MPA h.264 Video Codec: none Satelite/CableTV Provider: Astra 19.2°E HTPC Case: My own CaseCon Cooling: Power Supply: Remote: Medion X10 TV: Philips 20" LCD Monitor and Benq Beamer TV - HTPC Connection: VGA and DVI I am new in the forum so first of all I want to thank all making MediaPortal possible. After upgrading my hardware and installing a single seat client server configuration for the first time, I encounter serious stuttering problems. The video stuttering occurs when watching live tv, in some rare cases also some coloured big squared artefacts are shown. The sound is also interrupted which makes watching tv almost impossible. The stuttering is obviously also recorded, when rewinding a recording, the stuttering occours always again at the same time. CPU usage is about between 10 and 40% when watching TV and does not rise when the stuttering occours. Watching tv with the dvbviewer works perfectly, so the sat signal quality seems sufficient. I honestly promise to donate for MediaPortal if anybody out there could help me to make it run properly! Thanks in advance, thecubist Last edited by thecubist; 2009-04-22 at 22:42..

2009-05-10, 21:06	#5 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	tv still stuttering Today there's stuttering again ;-( I am watching tv while recording the same program, unfortunately, there are these anoying interruptions again, video stops and there is no sound for a moment then. By the way: upgraded to MediaPortal 1.0.2 yesterday ... Really nobody out there with a solution for that?

2009-05-11, 19:45	#6 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	Stuttering without recording ... Me again, today I am watching tv without recording and, unfortunately, the same problem ... Does anybody run MediaPortal on a ASUS M3A78-EM using onboard graphics? If so, which DVB-S card do you use?

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2009-04-24, 21:27	#2 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	I installed "amd dual core optimiser" as suggested in http://forum.team-mediaportal.com/ge...tml#post395802 but it does not fix the problem. When starting TV sound and image is fine for some time and later the stuttering starts, frequency differs from time to time ... I disabled virus scanner (thought it might disturb the time shifting) and Cool & Quiet ... none off these changes was helpfull. Are there more things I should try??? Please help me, I want to watch TV again!

2009-04-25, 15:35	#3 (permalink)
Manuelito MP Donator Join Date: Aug 2007 Posts: 23 Thanks: 32 Thanked 2 Times in 2 Posts Country: My System	tested by checking "use exclusive mode" in "directshow filters control"

2009-04-25, 23:54	#4 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	"use exclusive mode" is checked ... meanwhile I experimented with almost every available settings, checked latency times which are at about 1000 ms and reduce to about 500 ms when the skystar2 is disabled. unfortunately this is no solution for watching tv ;-) the interesting news: stuttering is strongly reduced (almost completely gone) after REDUCING cpu frequency! I use crystalcpuid tool with multplier management to underclock the cpu. the maximum cpu frequency was 2600Mhz (nominal cpu spec). I reduced it to 2000Mhz and though I don't understand why, things are better now. I found this solution by observing cpu frequency while watching tv and found, that stuttering occured only, when the cpu frequency rised to the maximum value. anybody out there, who can explain this strange effect?

2009-05-13, 23:25	#7 (permalink)
orph MP Donator Join Date: Mar 2009 Posts: 50 Thanks: 33 Thanked 5 Times in 4 Posts Country:	Money's on you're having the same issue as this thread. 1080i material not deinterlacing under 1.0.1.0

2009-05-14, 17:56	#8 (permalink)
thecubist MP Donator Join Date: Apr 2009 Posts: 31 Thanks: 1 Thanked 0 Times in 0 Posts Country: My System	I don't think it's the same problem, since I am far away from 1080 HD, in good old germany it is good old PAL tv. Would these deinterlacing issues occur always at the same time in recordings or timeshift? I still think, it's something about the tv-server, since the stuttering seems to be recorded also ...

2009-05-14, 20:38	#9 (permalink)
Manuelito MP Donator Join Date: Aug 2007 Posts: 23 Thanks: 32 Thanked 2 Times in 2 Posts Country: My System	Have you tried other audio devices or codes?. For example, using the ffdshow mp3lib. For trying ....

2009-05-14, 22:07	#10 (permalink)
winstonc69 Portal Member Join Date: Nov 2008 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts	Hi Cubist, Just upgraded my mediaportal TV-server to a Gigabyte 780G chipset mb (due to hardware failure) and seem to be having similar problems to you. Changing codecs within mediaportal has had no effect. In may case however, viewing back the recordings in another application (wmp) exibits non of the stuttering. This was using a standard network share, could it be RTSP within mediaportal? Will experiment some more & let you know if I find a solution.