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PostPosted: Tue Feb 07, 2012 8:07 pm 
King of Lolies
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I use Windows 7 Ultimate and Media Player Classic - Home Cinema. I also use a netbook (Aspire One 722) with AMD Dual-core Processor C-50 (1.0 GHz), 2GB DDR3 RAM, with dedicated VGA Card (128MB AMD Radeon HD6250). With all those, I could easily play 1080p HD movies, provided I have the right encoder.

The problem is that, when I logged in as standard user (the normal standard user), some movies (those that big, like 1080 HD movies, only some of them though...) start stuttering as if I don't have enough spec to run it properly. But if I logged in as administrator, I could run them all smoothly.

I've tried lots of things like changing the encoder, the settings, even use the "run as administrator" option to no avail. I checked the performance in task manager and I found out that I still have lots of RAM left and still about 30% of free process in both CPU core. Could someone help me on this?

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Last edited by LVUER on Fri Feb 10, 2012 2:06 am, edited 1 time in total.

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PostPosted: Wed Feb 08, 2012 4:20 am 
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Your processor isn't powerful enough to do 1080p decoding. For most video files the decoding can be offloaded to the graphics chip, but not always. I think that's what you're seeing, the CPU has to do the decoding, but can't keep up.

Running as administrator and unused system memory don't affect anything.


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PostPosted: Wed Feb 08, 2012 4:26 am 
King of Lolies
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But then why those files/movies could be run smoothly when I logged in as administrator? I don't think the problem lies on the processor being not powerful enough.

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PostPosted: Wed Feb 08, 2012 6:06 am 
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Under normal circumstances, your processor doesn't do the video decoding. It's offloaded to the graphics chip using something called DXVA. Without it, your processor would have to do the video decoding, and it isn't powerful enough to decode most 1080p video.

Quote:
when I logged in as standard user (the normal standard user)
Windows 7 by default only has one visible user. Are you using multiple accounts? If you are, some settings/codecs may be different/unavailable to your non-admin account.


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PostPosted: Wed Feb 08, 2012 7:06 am 
King of Lolies
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Yes, I use multiple account (two to be exact), one with admin rights and the other just a normal user. It's the normal user that have problem. Can I fix it, so that the normal user could play 1080 HD movies smoothly, without giving it admin rights?

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PostPosted: Wed Feb 08, 2012 8:20 am 
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Make sure the MPC settings for the non-admin account are compatible with DXVA -- output=EVR, no intermediate video filters, etc. There are guides that can help you with this.


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PostPosted: Wed Feb 08, 2012 7:10 pm 
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If codecs, unavailable to the current user, are a problem, you could try VLC player - http://www.videolan.org/vlc/, which is using it's own (integrated) codecs.

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PostPosted: Wed Feb 08, 2012 9:36 pm 
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I've seen at least one netbook which had stuttering trouble running high definition movies on Media Player Classic and Windows Media Player, but which ran them smoothly using VLC Player, so I suggest you try that.


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PostPosted: Fri Feb 10, 2012 2:06 am 
King of Lolies
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Location: Bandung, West Java, Indonesia
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SOLVED, yay ^_^

The problem is non-admin setting is very different from admin one. I've messing with the setting a lot to no avail because I don't know a clue what to do. Thanks to AxemRed, cluing me about DXVA, I know which one to change. So now even non-admin account could run those 1080p movies smoothly.

Thanks for all the help.

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