lkml.org 
[lkml]   [2004]   [Sep]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: 2.6.9-rc1: scrolling with tdfxfb 5 times slower
Date
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


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:05    [W:0.051 / U:2.116 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site