[linux-audio-dev] best option for audiovisual synchrony

Tim Goetze tim at quitte.de
Fri Oct 20 21:08:26 UTC 2006


[Paul Davis]
>On Fri, 2006-10-20 at 22:44 +0200, Tim Goetze wrote:
>> Back in the 80s, the humble Commodore 64 could be readily programmed 
>> to fire an interrupt on vertical sync.  Have 20 years of progress 
>> really deprived us of this fine feature, or is it just missing from X?
>
>it was missing from X until Xorg put it back in as an extension. its
>obviously not of much use in a general purpose X app, since the display
>may not be the host on which the app runs, making access to the vsync
>pulse pretty pointless.

It's good to know it's available when you need it (and can arrange a 
local display). Now I can believe in progress again! :) Thanks.

Cheers, Tim



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