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