Re: [PATCH] pm2fb: fb_sync added

On Tue, 2007-05-08 at 15:05 +0200, Krzysztof Helt wrote:

Dnia 8-05-2007 o godz. 14:32 Antonino A. Daplas napisał(a):

quoted

On Tue, 2007-05-08 at 09:26 +0200, Krzysztof Helt wrote:

I see a major problem with using copyarea acceleration comparing
to redraw function. The copyarea always moves the whole
framebuffer (milions of pixels) while the redraw works very smart
to redraw only things which has to be redrawn. I am working to
use something smarter for copyarea. No success yet.

Are you using just plain move and redraw?  How about trying pan + move,
or pan + redraw.  If you can set var->yres_virtual to be at least 2x
var->yres, it might improve scrolling speed a lot.

Tony



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