Re: [Linux-fbdev-devel] [PATCH] fb accel capabilities (resend against2.6.7-rc2)

[Thomas Winischhofer]

David Eger wrote:
> I coded your pseudocode up, and I'm convinced now that you and Thomas are right.
>  We should prefer panning when it's available
> cat /usr/src/linux/MAINTAINERS is 0.3 seconds instead of 1.5 seconds.
>
> On the down side, panning makes screen corruption for me... time to investigate
> to see if fbcon or radeonfb is to blame... perhaps panning is just incompatible
> with accel engine at all in radeon...

Sisfb has been using panning for ages and I never saw or heard about 
screen corruption. Looks very much like the radeon driver is skrewed...

However, I don't think the engine is "incompatible" with panning. 
Panning means just to change the display start address, I can't imaging 
that the engine would care about that.

What sort of "screen corruption" do you get?

Thomas

--
Thomas Winischhofer
Vienna/Austria
thomas AT winischhofer DOT net          http://www.winischhofer.net/
twini AT xfree86 DOT org
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/