Stutter on Second Monitor (1 Viewer)

[mtp3]

MediaPortal Version: 1.2.2
MediaPortal Skin: Streamed MP/Default Wide
Windows Version: 7sp1 x86 and x64
CPU Type: Intel Q6600
HDD: lots
Memory: ddr2 4gb and 16gb
Motherboard: gigabyte
Video Card: nvidia 9600gt, amd HD4550, HD6450 (Different Systems)
Video Card Driver: latest
Sound Card: AL889
Sound Card AC3:
Sound Card Driver:
1. TV Card: hauppauge 1100
1. TV Card Type: dvb c dvb t
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: varies
MPEG2 Audio Codec: LAV
h.264 Video Codec: FFDSHOW DXVA
Satelite/CableTV Provider: Astra 19.2/28.2
HTPC Case: antec solo
Cooling:
Power Supply: corsair
Remote: mce
TV: panasonic p55vt30
TV - HTPC Connection: hdmi

Hi,

I am having the same problem on 3 different systems. I get terrible stuttering (with slight variations) when I try to use MediaPortal on a second Monitor. I have tried different codecs with no changes. I have one system with an Nvidia 9600GT, a second system with an ATI HD4550, and a 3rd with an ATI HD6450.

The following statements apply to all 3 systems:

1. On primary monitor there is (virtually) no stuttering or dropped frames - everything works
2. On secondary monitor most videos and TV stutter badly (33 to 50% dropped frames) in full screen mode EVR
3. On secondary monitor videos and TV work properly in window mode EVR
4. On secondary monitor videos and TV work properly in full screen VMR mode.
5. MPC-HC can play all videos properly with EVR.

My summary - there is a problem with the EVR presenter to the second monitor.

It may also have something to do with interlacing. If I force all de-interlacing off, the dropped frames problem goes away for TV (PAL) streams - unfortunately the picture is unwatchable due to the interlacing. For TV (PAL) mediaportal presents 37.5 fps (instead of 50) when the monitor is at 75Hertz.

Anyone else having this problem?

Mtp

 

[mastyman]

i also see this on various systems. i did some reaseach, it seems it comes down to directx only hardware accelerates the primary display and not the extended.

If you motherboard supports 2x PCIe you could try dual gfx cards, 1 for each monitor and you will see the difference straight away.

Note: it wasnt just MP this was a problem for, i tried a ton of different players and codecs as you did, none i tried solved the problem for every video type.