Messages in this thread | | | From | "Antonino A. Daplas" <> | Subject | Re: 2.6.9-rc1: scrolling with tdfxfb 5 times slower | Date | Wed, 1 Sep 2004 18:21:06 +0800 |
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On Wednesday 01 September 2004 15:20, Paolo Ornati wrote:
> Ok, with this patch and CONFIG_FB_3DFX_ACCEL=y the scrolling speed comes > back (only a bit slower than with 2.6.8.1 without CONFIG_FB_3DFX_ACCEL): > > $ time cat MAINTAINERS: ~2.67s
Ok. However, I'm still wondering at the scrolling speed, it's a bit slower than what I would expect (I get < 1 second with vesafb which is completely unaccelerated).
Did you set info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN? Do you use the 'nopan' boot option?
Because if you answer yes to the first question and no to the second, that means that tdfxfb_pan_display() is probably broken.
BTW, what does fbset -i say, and what's your hardware setup?
> > Another interesting thing is that if I enable CONFIG_FB_3DFX_ACCEL without > your patch the screen becomes black and the kernel stop working at boot > time (when the mode switch happens).
tdfxfb_cursor() is broken, so I disabled that. It's the reason your machine hangs at boot time if CONFIG_FB_3DFX_ACCEL is set to y.
Tony
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