Problems when running MP on secondary display

seco · 2007-10-17, 16:23

I'm using Mediaportal's screen selector feature to start MP in fullscreen mode on my secondary display which is 42" Mirai LCD TV.

I've ran into two problems with this setup:

1. Stuttering: TV and video (for example .mkv files) stutter about 3-4 second interval, pause is very quick but it is disturbing. Stuttering is clearly visible if I set DirectX exclusive mode OFF: Every time the picture stutters, tearing occurs. I've tried several x264 and mpeg2 decoders.

2. Artifacts in picture: Blinking bright green artifact (one pixel wide, two pixels high) in the middle of the screen, sometimes another in top-middle of the screen. Artifact(s) is/are not blinking always, but quite often. If I set DirectX exclusive mode OFF this problem is gone, but then I get tearing. And no, these are not dead pixels, because my TV actually has one and it's nothing like same

And finally: If I configure MP to start on my primary display which is Viewsonic 22" TFT both problems are GONE. If I play video files directly with Mediaplayer Classic on my primary or secondary display, no problems at all.

Another weird thing is that sometimes the log file says "Main: DX exclusive mode: False" even if I've enabled it in configuration file.

TV-Server Version: SVN 16125
MediaPortal Version: SVN 16125
MediaPortal Skin: XFace 1.0
Windows Version: Windows XP 32bit Pro SP2
CPU Type: AMD X2 4600+
HDD: Samsung T166 500GB + Seagate 320GB
Memory: 2GB Corsair
Motherboard: Asus M2N-E
Motherboard Chipset: nForce 570
Motherboard Bios: Latest
Video Card: Geforce 7900 GT
Video Card Driver: Forceware 93.71
Sound Card: Soundblaster Audigy ZS 2
Sound Card AC3: Passthrough AC3Filter
Sound Card Driver:
1. TV Card: FireDTV
1. TV Card Type: DVB-C
1. TV Card Driver: Latest BDA
MPEG2 Video Codec: nVidia Purevideo
Remote: FireDTV Remote
TV: Mirai FullHD LCD 42"
TV - HTPC Connection: HDMI-DVI

I was wondering, does anyone know if it is possible to add secondary PCI-E graphic card to non-SLI motherboard, in this case my Asus M2N-E?

And in this way could I "dedicate" secondary card to Mediaportal...

seco · 2007-10-19, 18:41

Ok, I found one solution for the 1. stuttering problem: I installed DScaler5 MPEG codecs and changed Mediaportal to use DScaler as a MPEG2 encoder instead of nVidia Purevideo and voila: stuttering is gone.

BUT, now the audio is way out of sync and the picture quality is poor compared to Purevideo.

Any ideas?

2007-10-17, 16:23	#1 (permalink)
seco Portal Member Join Date: Aug 2007 Posts: 193 Thanks: 1 Thanked 4 Times in 4 Posts Country: My System	Problems when running MP on secondary display I'm using Mediaportal's screen selector feature to start MP in fullscreen mode on my secondary display which is 42" Mirai LCD TV. I've ran into two problems with this setup: 1. Stuttering: TV and video (for example .mkv files) stutter about 3-4 second interval, pause is very quick but it is disturbing. Stuttering is clearly visible if I set DirectX exclusive mode OFF: Every time the picture stutters, tearing occurs. I've tried several x264 and mpeg2 decoders. 2. Artifacts in picture: Blinking bright green artifact (one pixel wide, two pixels high) in the middle of the screen, sometimes another in top-middle of the screen. Artifact(s) is/are not blinking always, but quite often. If I set DirectX exclusive mode OFF this problem is gone, but then I get tearing. And no, these are not dead pixels, because my TV actually has one and it's nothing like same And finally: If I configure MP to start on my primary display which is Viewsonic 22" TFT both problems are GONE. If I play video files directly with Mediaplayer Classic on my primary or secondary display, no problems at all. Another weird thing is that sometimes the log file says "Main: DX exclusive mode: False" even if I've enabled it in configuration file. TV-Server Version: SVN 16125 MediaPortal Version: SVN 16125 MediaPortal Skin: XFace 1.0 Windows Version: Windows XP 32bit Pro SP2 CPU Type: AMD X2 4600+ HDD: Samsung T166 500GB + Seagate 320GB Memory: 2GB Corsair Motherboard: Asus M2N-E Motherboard Chipset: nForce 570 Motherboard Bios: Latest Video Card: Geforce 7900 GT Video Card Driver: Forceware 93.71 Sound Card: Soundblaster Audigy ZS 2 Sound Card AC3: Passthrough AC3Filter Sound Card Driver: 1. TV Card: FireDTV 1. TV Card Type: DVB-C 1. TV Card Driver: Latest BDA MPEG2 Video Codec: nVidia Purevideo Remote: FireDTV Remote TV: Mirai FullHD LCD 42" TV - HTPC Connection: HDMI-DVI I was wondering, does anyone know if it is possible to add secondary PCI-E graphic card to non-SLI motherboard, in this case my Asus M2N-E? And in this way could I "dedicate" secondary card to Mediaportal... Last edited by seco; 2007-10-17 at 16:59. Reason: Automerged Doublepost

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2007-10-19, 18:41	#2 (permalink)
seco Portal Member Join Date: Aug 2007 Posts: 193 Thanks: 1 Thanked 4 Times in 4 Posts Country: My System	Ok, I found one solution for the 1. stuttering problem: I installed DScaler5 MPEG codecs and changed Mediaportal to use DScaler as a MPEG2 encoder instead of nVidia Purevideo and voila: stuttering is gone. BUT, now the audio is way out of sync and the picture quality is poor compared to Purevideo. Any ideas?