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Am 27.07.2012 22:22, schrieb Michael Mol: |
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> On Fri, Jul 27, 2012 at 4:10 PM, Allan Gottlieb <gottlieb@×××.edu> wrote: |
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>> I am getting a new laptop. (likely dell 6430). |
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>> The two graphics options are intel HD 4000 and nvidia NVS 5200M. |
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>> Dell is as expected suggesting the 5200M. |
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>> |
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>> I do not need 3D or fast response. Dell hinted that DVDs might not play |
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>> with the intel HD 4000. This seems weird to me as the 4000 is supposed |
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>> to be a big improvement over the 3000 and I can't believe dell or others |
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>> would have sold laptops that can't play dvds |
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>> |
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>> Any comments or experiences? |
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> |
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> My Duron 750MHz was able to decode DVDs in realtime. After that, all |
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> you're doing is blitting (or using xv) the frames to the screen. I |
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> would be absolutely shocked if the Intel HD 4000 GPU couldn't handle |
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> that basic of a 2D acceleration function. |
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> |
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> Now, DVDs use MPEG2. Blu-Ray uses h.264, which is a much harder beast |
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> to decode in realtime. It's possible the HD 4000 GPU can't handle |
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> hardware decode of h.264, but I don't know. I've never looked into it. |
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> (Software decode of 1080p h.264 on my Phenom 9650 worked somewhat, but |
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> highly active scenes would cause frame drops.) |
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> |
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I've experienced issues playing DVDs on fullscreen with the OSS radeon |
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driver. Therefore I'm cautious of assumptions that something works |
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simply because the input is easy to decode. Upscaling to large displays |
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with high resolutions can be an issue. |
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I'm not saying the Intel driver cannot handle it. I'm just saying you |
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should try it or look for reports. |
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Regards, |
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Florian Philipp |
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