triple buffering, vsync or whatever...

pantra · n00b Joined: 17 Mar 2004 Posts: 3

Hi all,
I am running Gentoo with kernel 2.6.4 and xfree 4.3 with the nvidia-driver on a Dell Latitude c840 with a Geforce 4 440 Go.
For some days i've been searching the net for an answer to my latest problem with xfree, but found none: So, how can i force to have only complete frames of a process drawn, not those half screens, that make it seem as if the display is constantly cut in half? Every time i drag and pull around my windows on the desktop, they flicker and wobble and seem like scattered. How's that fixed?

A friend told me that problem's due to no screen-buffering support. But i guess something like that has to be available somewhere! Isn't there an option to set in the XF86config or some tool around, something to enable triple buffering or else? Or is it a known problem with the nvidia graphics-drivers?
Please let me know if you need more Info!

Brazil · Posted: Thu Mar 18, 2004 2:23 am Post subject:

This is another complaint of XFree86... Like we all whish we had the abillity to have transparent windows... things will look bad when you scroll or drag windows. XFree86 cannot sync the buffer w/ your refresh rate... Macs and Windows can though... or when you play your favorite 3D game...

As everyone else will tell you... wait for xserver from freedesktop.org.

I don't look at any of the mailing lists, but there is never anything new on their website... but they are working hard on it... I'm sure everyone is putting on the pressure...

floam · Posted: Thu Mar 18, 2004 2:29 am Post subject:

verbatim · Apprentice Joined: 13 Mar 2003 Posts: 223

Brazil · Posted: Thu Mar 18, 2004 2:44 am Post subject:

and vsyncing is not eye-candy as well?

I think people can see cool effects w/ transperencies... but it wold also allow the ability to represent something w/ less resources and less data processing.

Like if I need to have something change blue and yellow to make a green, only X would, if hardly anything, what to change on the screen... and not the app... so the app would have to keep track when X tells something has moved, change the value and calcualte the change of color, then send the info back to X.

and I said, as you quoted, ANOTHER complaint... which it seems you are sick of reading in the forms here.... becasue I am not the only one.

shm · Posted: Thu Mar 18, 2004 3:55 am Post subject:

how about turning backing store on?
_________________
what up

Brazil · Posted: Thu Mar 18, 2004 4:09 am Post subject:

what is backing store? is that a card specific feature?

CheshireCat · Guru Joined: 25 Aug 2002 Posts: 572

Backing store, IIRC, involves storing pixmaps of window areas hidden by another window, and will not fix this problem at all. It's useful mostly over high-latency connections, so that the X server can fill in revealed areas without asking the client to redraw them.

floam · Posted: Thu Mar 18, 2004 5:39 am Post subject: