Messages in this thread | | | From | "Antonino A. Daplas" <> | Subject | Re: 2.6.9-rc1: scrolling with tdfxfb 5 times slower | Date | Thu, 2 Sep 2004 04:20:55 +0800 |
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On Wednesday 01 September 2004 19:55, Paolo Ornati wrote: > > Ok, I think I know why the scrolling speed is too slow, the driver is not > > maximizing the extra memory of the framebuffer. > > > > This patch sets info->var.yres_virtual to the maximum upon driver load. > > If this works, it's possible to get sub-1 second scrolling speed. > > > > Reverse the previous patch first, then apply this patch. > > Results for 2.6.9-rc1 + your patch (time cat MAINTAINERS): > > CONFIG_FB_3DFX_ACCEL=n > ~1.27 s > > CONFIG_FB_3DFX_ACCEL=y > ~0.18 s > > BUT with CONFIG_FB_3DFX_ACCEL enabled I get strange video > "corruptions" (like bitmaps with random colors) that go away simply > swithcing to another console and than back to the previous.
And another suggestion:
Try to comment out FBINFO_HWACCEL_COPYAREA.
Tony
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