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Why Does My Guide Lag in WMC 7?

post #1 of 7
Thread Starter 
I built my HTPC and have been using it with 1080p digital cable for a couple of months with no major issues. The main annoyance is that the WMC guide is not very responsive. Things I notice:

1) Takes some time to display the guide after pressing Guide button
2) As guide appears, the animation is slow/choppy
3) Scrolling through the guide is slow and there is a lag between button press and action
4) Video behind transparent guide (full-screen guide) is choppy, making me thing the video card is having a hard time processing the overlay and video at the same time

My setup info is below. Does anyone have any advice? Do I need a better video card for 1080p or can this be resolved with a driver/software tweak? Anyone know how to diagnose what component is the bottleneck?

ASUS M4A78-EM Micro-ATX mobo with ATI Radeon HD 3200 built-in
AMD Phenom X4 9750
Ceton InfiniTV 4
Windows 7 Home Premium

Thank you!
Adam
post #2 of 7
Need a dedicated vid card.
post #3 of 7
You can try turning off Aero and/or sound effects in MCE to see if any of that helps. But generally a new vid card (even just a 5450 ) would help.
post #4 of 7
I have the same mobo. Onboard HD3200 is good for 720p. Could not handle 1080i. I experienced the same issue that you mentioned above. Upgraded to HD5670.
post #5 of 7
Quote:
Originally Posted by thatadamguy View Post

I built my HTPC and have been using it with 1080p digital cable for a couple of months with no major issues.
Adam

What is 1080p digital cable?
post #6 of 7
there is also something you can change in power settings.

Goto your advance power settings, and I think what you want (if I can remember from when I set mine up) is "processor minimum power state". I increased that and it really helps the guide pop up quickly. Forget what value I increased it to....but try a few and see what works for you.

cheers

chuga
post #7 of 7
I have an ASUS M3A78-EM that also comes with the 3200.

I got very bad stutter using MC7. Seems the issue lies with the default MS codec for live tv.
I replaced it with the default ATI codec using MCDU.exe. (You need to install ATI AVIVO first since it's not include with the driver package).
And the problem went away. Now it's very smooth and no more stuttering.

Someone mentioned that it broke DVD playback (I never confirmed it) in Media Center but since I was only using the TV portion of it, I didn't care. Also the small thumbnails that appear on your Recorded TV list will no longer appear.
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