Ok, thanks again Chris and Cyrille. That helps a lot, and I'll see what I can do from this point.
William On Thu, May 31, 2012 at 12:06 PM, chris clepper <[email protected]> wrote: > On Thu, May 31, 2012 at 8:36 AM, William Brent <[email protected]> > wrote: >> >> Thanks Chris & Cyrille. I don't have an nvidia GPU, so I'll see what I >> can find in the Xorg.conf. For totally digital displays, how does the >> refresh rate come into play? I'm seeing out there that VBL doesn't apply to >> digital. > > > The refresh rate for LCD is 60Hz although internally many process at 120 or > even higher. > >> >> I tried single buffer mode with each metro tick banging the gemhead and >> then clearing the gemwin, but got jittery results with the video stream. > > > Without syncing to the refresh rate the video display will be jittery and > also have tearing artifacts. As Cyrille points out there are ways to run > gemheads at higher speeds, but you want to keep all of the drawing objects > at refresh rate. > -- William Brent www.williambrent.com “Great minds flock together” Conflations: conversational idiom for the 21st century www.conflations.com _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
