On Mon, 2006-12-04 at 12:10 +0200, Kalle Kärkkäinen wrote: > Hi, > > I'm running ubuntu edgy with compiz, switched from gentoo to ubuntu > for faster updates (emerge is way slow with source builds..). So far, I > like it. > > but that is not the issue I'm addressing now. I've noted that with > both these machines, when I'm doing something that tints the whole > screen to gray (like trying to logout, or using some software that > prompts for sudo rights), it's really slow. Jagged. It seems that it's > not vertically synced or something. > > Other tints, like when some program has gone haywire and stopped > responding to the system, works well (gradually and smoothly turning to > gray). Even when maximized. > > I'm running a 1600x1200 screen with Nvidia 6600. I'd guess that this > hardware should be able to do this smoothly. Is this at all in the > compiz code, or is this done in some other place? (like gnome in my > case)
Those effects are done in software. A compositing manager might make them a bit slower. There are much more efficient ways to do those kind of effects when a compositing manager is running and there's actually support for this in compiz already. _NET_WM_STATE_DISPLAY_MODAL state is set on a mapped window all other windows will be desaturated. If the fade plugin is loaded, you'll get a nice fade to gray effect. I once wrote a patch for gnome-session to support this and I know that we shipped it in SLED. It's still sort of a hack so I never submitted it upstream. Something like _NET_WM_STATE_DISPLAY_MODAL should be added to the EWMH spec and applications like gnome-session should be modified to use it when available. -David _______________________________________________ compiz mailing list compiz@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/compiz
