Topic Title: HD 4870 - .mkv hd video files are unplayable in Windows 8
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Created On: 08/18/2013 08:31 AM
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 08/18/2013 08:31 AM
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Darth Revan
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As the title says.
I know that the 4000 series isn't fully supported in Win8, but I'll give it a shot.
When I try to play a .mkv file the player either gets stuck immediately with the audio going on a loop (VLC) or plays the audio/video extremely slowly and choppily (WMPC).

After a few days of tinkering I've narrowed the problem down to the card drivers. I've even tried modded/alternative drivers, but with no success.

If anyone could help, I'd be grateful.

 08/20/2013 02:29 PM
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Eydee
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Originally posted by: Darth Revan After a few days of tinkering I've narrowed the problem down to the card drivers.

 

 

How exactly? Could you share details? Have you tried MPC-HC? VLC and MPC are both crap.



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 08/20/2013 04:38 PM
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black_zion
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I would suggest MPC-HC as well. Search on filehippo.com for "K-Lite Mega Codec Pack" and during setup keep hardware acceleration to software decoding.

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 08/21/2013 03:29 AM
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Darth Revan
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Originally posted by: Eydee
Originally posted by: Darth Revan After a few days of tinkering I've narrowed the problem down to the card drivers.

 

How exactly? Could you share details? Have you tried MPC-HC? VLC and MPC are both crap.

 

They're playable with the stock Windows 8 driver but after installing the latest official AMD driver they're not. Uninstalling it will make them playable again.

I know the problem isn't related to the software because I tried half a dozen different players and codec packs and it didn't change a thing (I meant MPC-HC, not WMPC, my bad). It's most definitely a driver issue.

To be honest, I'm REALLY annoyed that AMD would discontinue support for a product that was barely 4 years old when Windows 8 was officially launched, not to mention that Win8 preview versions were available like a year earlier. It's not like they didn't have the time or the card was old already.

 08/21/2013 08:50 AM
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black_zion
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It's not AMD's fault that a 4 year old card is unable to support the functionality necessary for full support in Windows 8. Nobody is holding a gun to your head forcing you to use Windows 8. Windows 7 will be supported until 2020, and is pretty much Windows 8 sans the touch oriented interface and native disk image access.

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 08/21/2013 09:10 AM
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Darth Revan
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Originally posted by: black_zion It's not AMD's fault that a 4 year old card is unable to support the functionality necessary for full support in Windows 8. Nobody is holding a gun to your head forcing you to use Windows 8. Windows 7 will be supported until 2020, and is pretty much Windows 8 sans the touch oriented interface and native disk image access.

The card has no problems playing the same video files under any other OS I tried (older Win versions and current Linux distros). So allow me to think that the problem lies with the drivers, not the card itself.

And this is definitely AMD's fault.

Don't you think that a 4-year life span is a bit short for a video card?

 08/21/2013 10:58 AM
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QB the Slayer
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Originally posted by: Darth Revan Don't you think that a 4-year life span is a bit short for a video card?

 

Not when you talk about a brand new OS...  4 years is ancient to it

 

QB



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 08/22/2013 01:57 AM
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Eydee
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Originally posted by: Darth RevanThe card has no problems playing the same video files under any other OS I tried (older Win versions and current Linux distros). So allow me to think that the problem lies with the drivers, not the card itself.

 

And this is definitely AMD's fault.

 

Don't you think that a 4-year life span is a bit short for a video card?

 

Please send your card to the nearest AMD factory. We will open up your GPU and insert new circuits necessary for DX11 and WDDM 1.2 support. Then you can have a few more years out of it...

(not) AMD



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 08/22/2013 02:59 AM
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Darth Revan
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Originally posted by: Eydee  

 

 

 

Please send your card to the nearest AMD factory. We will open up your GPU and insert new circuits necessary for DX11 and WDDM 1.2 support. Then you can have a few more years out of it...

 

(not) AMD

 

 

Video playback doesn't require either DX11 or WDDM 1.2 support.

But I guess that's the only way to make the position that those drivers aren't a sloppy work tenable. Why you'd want to do that is beyond me, though...

 08/22/2013 09:10 AM
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black_zion
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The card has no problems playing the same video files under any other OS I tried (older Win versions and current Linux distros). So allow me to think that the problem lies with the drivers, not the card itself.


The card works under OS's which have full support for the HD 4870 but does not in the one which does not, and you think it's a driver issue? We will allow you to think that the problem is the drivers, but you are just in denial, and we cannot help someone who can't accept reality.

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 08/23/2013 02:59 AM
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Darth Revan
Peon

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Originally posted by: black_zion
The card has no problems playing the same video files under any other OS I tried (older Win versions and current Linux distros). So allow me to think that the problem lies with the drivers, not the card itself.
The card works under OS's which have full support for the HD 4870 but does not in the one which does not, and you think it's a driver issue? We will allow you to think that the problem is the drivers, but you are just in denial, and we cannot help someone who can't accept reality.

Apparently you missed a piece of info I posted earlier.

HD videos are playable under Windows 8 when AMD drivers are NOT installed. 
They become unplayable AFTER the drivers are installed.

Which leads to the reasonable assumption that drivers might have something to do with it. If you know better, then please elucidate me. I'm listening.

 

(By the way, it's not OSs that support a piece of hardware, or even the other way round. )

 08/23/2013 05:38 PM
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Eydee
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Originally posted by: Darth Revan

 

Apparently you missed a piece of info I posted earlier.

 

HD videos are playable under Windows 8 when AMD drivers are NOT installed.  They become unplayable AFTER the drivers are installed.

Apparently you miss the fact that as long as there are no drivers installed, your video card is nothing but a big electric circuit between the CPU (which makes the image) and your monitor (which receives it).

The card does nothing without drivers, the image is made by the CPU. And we all know that a CPU can do (calculate) literally anything, that's why it's the CPU. Yes, it can render the desktop, even play HD videos and send it to the monitor to display. Through your expensive electric circuit that does nothing.



-------------------------

CPU: AMD Phenom II X4 810 @ 3250MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 850/1150MHz | Display: L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 7 Pro x64

CPU: Pentium 4 Northwood S478 @ 3200MHz | RAM: 1,5GB DDR 400| MoBo: Gigabyte GA-8S661FXMP-RZ | GPU: ASUS Radeon X1650 Pro 256MB | Display: Dimarson 19" CRT | PSU: Noname 400W | OS: changing twice every week...

 08/25/2013 06:36 AM
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Darth Revan
Peon

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Originally posted by: Eydee
Originally posted by: Darth Revan

 

 

 

Apparently you missed a piece of info I posted earlier.

 

 

 

HD videos are playable under Windows 8 when AMD drivers are NOT installed.  They become unplayable AFTER the drivers are installed.

 

Apparently you miss the fact that as long as there are no drivers installed, your video card is nothing but a big electric circuit between the CPU (which makes the image) and your monitor (which receives it).

 

The card does nothing without drivers, the image is made by the CPU. And we all know that a CPU can do (calculate) literally anything, that's why it's the CPU. Yes, it can render the desktop, even play HD videos and send it to the monitor to display. Through your expensive electric circuit that does nothing.

 

 

I know. I meant using the generic windows video drivers, I even wrote it in my second post. I assumed they provided basic functionality for the GPU. If I'm wrong, my bad.

Anyway, I was looking for some kind of workaround, which I guess doesn't exist.

As for the card being technically unable to render hd videos under Windows 8 because of "circuitry" limitations, the fact that Nvidia drivers support products released 7 years ago makes me skeptical. Peace.

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