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Need assistance with current PC with PowerDVD 11 Bluray playback

post #1 of 8
Thread Starter 
Hi there,

This is my first post at AVS and I'm new at all this HTPC stuff. I've been searching the forum for a couple of days now but I can't get my finger on what is going on with my two PCs, regarding Bluray playback. Here's some background:

It all started a year ago when I tried to put to good work my girlfriend's PC based on a G33/Celeron 430 2.2GHz with Vista x32 by adding a Sapphire HD6450, Bluray drive and HDCP-compliant monitor. That should be allowing us to watch Bluray and surf the web in the bedroom, the discrete video card taking care of Flash and video decoding, offloading the CPU. Tried TMT5 at first, but after suffering continuous stuttering, I've settled for Power DVD11.2024 Ultra since the stuttering was less offending.

After playing with multiple software updates/patches (I'm afraid to try patching Power DVD after reading reports that it's worst after), I'm not satisfied. While searching what could be done to get ride of all the stuttering for good, I started to look into AMD's Catalyst GPU usage as well as GPU-Z's GPU load values. Both are at zero when a Bluray is playing, while the poor CPU is running between 25 to 50% usage. Checking or un-checking Hardware Acceleration in Power DVD makes no change into the load values.

One could says that it is specific to that build, but I have the exact same issue (minus the high load value on the CPU) on my own PC which is made of Win 7 x-64, i5-3350P, HD6850 but same Power DVD.

I don't know if it's me that is setting my expectations too high or doesn't understand how it works, but I'm not expecting Bluray stuttering after investing in hardware and software that should work flawlessly at basic playback task.

Any help this community can provide is appreciated.
post #2 of 8
update the drivers?
post #3 of 8
Actually that sounds about right. That Celeron is stupid slow, a $50 Celeron G540 (the new rejigged Celeron's) is at least two times faster. Just because the GPU is in use doesn't mean the CPU just twiddles its thumbs.
post #4 of 8
Quote:
Originally Posted by Tiddles88 View Post

Actually that sounds about right. That Celeron is stupid slow, a $50 Celeron G540 (the new rejigged Celeron's) is at least two times faster. Just because the GPU is in use doesn't mean the CPU just twiddles its thumbs.
Did you miss this part?
Quote:
Originally Posted by ostieca View Post

One could says that it is specific to that build, but I have the exact same issue (minus the high load value on the CPU) on my own PC which is made of Win 7 x-64, i5-3350P, HD6850 but same Power DVD.

Drivers are a good place to start.
post #5 of 8
Thread Starter 
After taking a good fight with Windows to remove all previous drivers on my PC, I was able to install the Catalyst 12.10 version. Looks like it took care of the stuttering. GPU load is still at zero, so I guess that's because the sensor doesn't apply to video playback. When resolution is set at 1920*1080p, the quality is horrible. Any lower resolution is fine tho, so it looks like it's triggering some processing in the TV, degrading the quality. The only setting I could find in the TV is DNR, which is already set at off. Oh well...

I'll do the same in my girlfriend PC and will report.

Thanks for the help so far.
post #6 of 8
Quote:
Originally Posted by Tiddles88 View Post

That Celeron is stupid slow.

Lol
post #7 of 8
Quote:
Originally Posted by ostieca View Post

When resolution is set at 1920*1080p, the quality is horrible. Any lower resolution is fine tho, so it looks like it's triggering some processing in the TV, degrading the quality.
In Catalyst Control Center (or "AMD Vision Engine Control Center" as they call it now), you may need to play around with the pixel format setting. It will be located under "My Digital Flat Panels" and will be the last option in the sub menu.
post #8 of 8
Quote:
Originally Posted by Tiddles88 View Post

That Celeron is stupid slow....
I have smooth Blu-ray playback on a Dell Dimension 3100 with Windows 8 x64, PowerDVD 8 and a 6450 PCIe-x1 card. Admittedly, the same machine can't handle PowerDVD 12 or TMT 5, but I'm wondering if these products have any features that make their demanding requirements worthwhile?
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