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:4.642 / U:0.120 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site