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Thread: Radeon 9800 Pro: troubles with DVD Decoder




  1. #1
    Join Date
    Aug 2004
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    Default Radeon 9800 Pro: troubles with DVD Decoder

    I just got a 9800 Pro and I can't play DVDs with Hardware acceleration turned on. I have tried it on both Power DVD and in Windows Media Player and when hardware acceleration is turned on, all I get is artifacts and funky bars and colors. I can play DVDs in software mode in Power DVD, but I would much rather play them with my video card doing the work. I have tried the Catalyst 4.7 and the Omega drivers and this problem occurs with both sets of drivers. I upgraded from a GF4 Ti 4400 and I did not have this problem on that card. BTW, I bought the following MSI card...

    http://www.msicomputer.com/product/p_spec.asp?model=RX9800PRO-TD128

    So.... anybody else have this problem or know how to fix it?

  2. #2
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    I'd suggest you read through the Catalyst installation guide at www.tweakguides.com as it's quite possible you just didn't dispose of the old nVidia drivers properly.

    Does this happen in anything other than DVDs?

  3. #3
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    I have covered all the steps in the driver removal and installation. The only thing I didn't do was format my drive. I really don't want to do that right now as it is too much of a hassle.

    I have no other problems with my video card at all. Plays games great and I don't get artifacts at anytime except when trying to play dvds with the video card decoder.

  4. #4
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    This setting has never worked as far as I know. Simple fix, make sure the check box is unticked. Considering the number of hours I have used a 9800 Pro with PowerDVD and never having any picture quality issues, it isn't a big thing. Untick the check box and enjoy your movies. Besides, I'd be real surprised if your board even had a hardware decoder chip embedded on the board unless it happens to be an AIW model.
    Old age and treachery will overcome youth and skill
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  5. #5
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    When i read this thread, i checked my power dvd, and the hardware accel is on. The picture is fine. Either way , on or off, i see no difference.

  6. #6
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    With an ATI based Radeon video board? If it is something other than an AIW then it'll be the first I've seen that works with it enabled. I've got a few buddies with similar rigs and they have the same issue.
    Old age and treachery will overcome youth and skill
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  7. #7
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    OK, thanks guys. I was just wondering if my card was defective or not. I am surprised that it does not have a dvd decoder built onto the board. I thought dvd decoding was pretty much standard these days on cards. My old GF4 Ti 4400 had it and this is a better card. This is surprising to me since video decoding has always been one of ATI's strong points over the years. I guess it must only be the all-in-wonders that have it like u guys mentioned. Oh well... the software decoder seems to work fine, even on my Superbit DVDs which have a higher bitrate. :)

  8. #8
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    The hardware decoders were omitted on most boards built on the reference design to help shave manufacturing costs. As a side note, the X800XT boards have included a Rage Theater chip again so things may be changing, but who knows for sure.
    Old age and treachery will overcome youth and skill
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  9. #9
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    Default Re: Radeon 9800 Pro: troubles with DVD Decoder

    I just installed powerdvd 5 and windvd 6, they both enable hardware accel by default. Yet i have no problems watching movies.

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