On Tue, Mar 20, 2007 at 09:31:00AM +0100, ext Klaus Rotter wrote: > Daniel Stone wrote: > >On Sun, Mar 18, 2007 at 07:57:36PM +0200, ext Siarhei Siamashka wrote: > >>Looks like graphics bus on N800 is 3x slower than on Nokia 770. It might > >>be caused by inefficient framebuffer driver implementation in its initial > >>revision. But if it is a hardware issue, getting normal video playback at > >>native framerate may be troublesome. [...] > > >Unfortunately, it's a hardware issue. What we can do is get the LCD > > The memory bandwidth to the N800 LCD framebuffer is 3 times slower that > the bandwidth in the N770? Is it really _that_ big?
Siarhei's calculations were correct, so, yes. > What is limiting the bandwidth: The OMAP interface, the LCD controller > itself or was it a design issue. a) and c). It's just not stable at higher frequencies. Cheers, Daniel
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