Messages in this thread | | | Date | Tue, 30 Nov 1999 13:01:49 +0100 | From | Gabor Lenart <> | Subject | Re: fbcon + scrolling = irq timeouts? |
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On Mon, Nov 29, 1999 at 12:39:26PM +0100, Benno Senoner wrote: > PS: Alan , I think most mp3 players use a relatively big buffersize > (most of time the full 64k of soundcard), and I don't think that VESA > disables > the IRQs for 370ms ( the time it takes to play the 64k audio buffer)
Yes, but imho redrawing frame buffer console blocks the kernel, scheduling, IRQ processing, right ? If so, it's possible to remain only a few kilobytes to play for DMA, and it can't play newer buffer block since end of dma irq or so is not received since IRQs are locked during frame buffer console redrawings. Or I'm wrong and even during this scheduling and IRQ receiving is enabled ?
(maybe something kernel thread would be usefull for framebuffer updates because scheduler can schedule it as well ...)
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