On Thu, 12 Dec 2002, Rafael E. Herrera wrote: > Dr Andrew C Aitchison wrote: > > Sometimes pixmaps are stored in offscreen video memory, sometimes > > in system memory. Maybe you are resizing your window such that the pixmaps > > don't fit in video memory so the server puts some in system memory. > > Under ideal conditions copying from video -> video requires no CPU > > overhead, but system -> video copies can require CPU effort. > > > > The X server logfile often gives clues about how much video memory > > is available for pixmaps. > > The server log only reports 'Offscreen Pixmaps' in the accelerated > features of our G450 Matrox cards, although I'm not sure what it means. > Your explanation for the slow down makes sense, however, i've reproduced > this problem even with a card with 32 MB of memory.
Last time I looked at the mga code, DRI tried to steal as much video memory as possible - I think it left at most a screen-full of memory for pixmaps. Are you using DRI ? -- Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge [EMAIL PROTECTED] http://www.dpmms.cam.ac.uk/~werdna _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
