Refresh rates (1 Viewer)

joz

Portal Pro
March 17, 2008
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Hi all,

I have just been looking into this whole refresh rate thing cause I experienced a weird problem yesterday caused by the new intellegent frame correction plugin, solved that particular issue by removing it and restarting XP (had to do the restart, just restarting mp after removal did not help).
When using that plugin I had crazy low rendering rates in just normal MP gui, it got better when playing tv, saw other people posting that.
However now I fixed that problem I feel like it's still not really there yet, yesterday I had framerates between 15 and 20 fps which was unbearably slow but now I'm getting up to 40fps. I'd like to get a bit higher still though so it matches the sync of the tv while just browsing MP gui.
Not sure what there is I can do about it. I would assume the videocard in my system (see specs) is up to the job, MP isn't all that demanding I think on the video cards.
I've set the rendering speed to 50 and 60 but it never gets higher than 40. ANy cleaver ideas?

I think this started happening (although I have not tested that back then) when upgrading from 1.0.2 to 1.1 beta1.
I say this because before the fadelabels where scrolling smoothly, ever since MP 1.1 it does not anymore on this machine.
Could go for updating vidoecard drivers, maybe it helps a little

MediaPortal Version: 1.1.0 beta1
MediaPortal Skin: StreamedMP
Windows Version: Windows XP SP3 (x86)
CPU Type: AMD E5050 @ stock
HDD: Samsung F2 1,5TB + Samsung F1 1TB
Memory: OCZ Titanium XTC 4GB DDR2-800 CL4 kit | 4-4-5-15 | 1,8v
Motherboard: MSI KA780G
Video Card: Sapphire Radeon HD 4670 Ultimate 512MB
Video Card Driver: 9.8
Sound Card: Creative X-Fi ExtremeMusic
Sound Card AC3: no AC3
Sound Card Driver: latest non-beta
1. TV Card: Hauppauge HVR 2200
1. TV Card Type: Analog
1. TV Card Driver: 7.1.2
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: ffdshow
MPEG2 Audio Codec: ffdshow
h.264 Video Codec: MPC-HD
Satelite/CableTV Provider: UPC
HTPC Case: Thermaltake DH101 Black
Cooling: 2x Papst 612FL 60mm (outtake), 1x Scythe Kaze Jyu Slim 100mm 1000rpm (CPU), 1x 120mm fan (intake)
Power Supply: OCZ StealthXStream 400W
Remote: Harmony One + MS IR receiver
TV: Sharp Aquos
TV - HTPC Connection: HDMI
 

CHli

Portal Pro
July 5, 2005
1,251
14
Switzerland
Home Country
Switzerland Switzerland
Hmm yeah I think your GFX card should be able to produce more than that :)

What output resolution and frequency do you use ?
Do you have default drivers settings or did you force some filtering ?
Do you have VSYNC forced in the driver ?
What's your CPU usage while having MP running ?

Good luck in fixing that.
 

joz

Portal Pro
March 17, 2008
1,353
306
Home Country
Netherlands Netherlands
What output resolution and frequency do you use ?
I use 1280x720 with a refresh rate of 50 but the tv can also handle 60, tried both with same results

Do you have default drivers settings or did you force some filtering ?

I have only done some overscan stuff in CCC, nothing special. Actually in the process of updating from 9.8 atm.

Do you have VSYNC forced in the driver ?

Nope, will that help? Didn't think of that yet, have to look for that setting but that will affect games as well right? Not sure if I'm happy doing that then. I play games on the machine and I think some of those will be problematic with v-sync on, a little bit too demanding for the vid card. I'll give it a try anyways

What's your CPU usage while having MP running ?
Low, anywhere between 0 and 10%

thanks for the reply!

-------EDIT--------

Updated the drivers didn't help though. I've set "wait for vertical sync" to always on but didn't help either.
 

joz

Portal Pro
March 17, 2008
1,353
306
Home Country
Netherlands Netherlands
I solved this bugger by doing 1:1 pixel mapping, well something like that.

When on 1280x720 I have this issue however not on 1360 (not 1366, no option for it) x 768. Weird.
The last resolution also forces the tv to do 60hz refresh rate, might have something to do with it all
 

joz

Portal Pro
March 17, 2008
1,353
306
Home Country
Netherlands Netherlands
1:1 pixel mapping is just a term no option. It means you feed your TV with a resolution that's native for the TV, which is 1366x768 for most HD Ready screens.

VSync is no option either it's called something like sync with screen, not sure out of the top of my head (@work atm)
 

naich

MP Donator
  • Premium Supporter
  • August 6, 2007
    529
    25
    Home Country
    Germany Germany
    ok thx

    I'm pretty sure ... my crazy fps ~17-32 on each client when TV Service ist running, is related to something happens on the server side (after the first stream).

    cu
     

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