From: "Antonino A. Daplas" <adaplas@hotpop.com>
To: Paolo Ornati <ornati@fastwebnet.it>, adaplas@pol.net
Cc: linux-kernel@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Subject: Re: 2.6.9-rc1: scrolling with tdfxfb 5 times slower
Date: Wed, 1 Sep 2004 18:21:06 +0800 [thread overview]
Message-ID: <200409011821.06520.adaplas@hotpop.com> (raw)
In-Reply-To: <200409010920.13307.ornati@fastwebnet.it>
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
next prev parent reply other threads:[~2004-09-01 10:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-31 19:33 2.6.9-rc1: scrolling with tdfxfb 5 times slower Paolo Ornati
2004-08-31 20:28 ` Antonino A. Daplas
2004-09-01 7:10 ` Paolo Ornati
2004-08-31 23:29 ` Antonino A. Daplas
2004-09-01 7:20 ` Paolo Ornati
2004-09-01 10:21 ` Antonino A. Daplas [this message]
2004-09-01 10:51 ` Antonino A. Daplas
2004-09-01 11:55 ` Paolo Ornati
2004-09-01 20:10 ` Antonino A. Daplas
2004-09-02 9:23 ` Paolo Ornati
2004-09-02 12:20 ` Antonino A. Daplas
2004-09-02 17:10 ` Paolo Ornati
2004-09-02 19:52 ` Antonino A. Daplas
2004-09-01 20:20 ` Antonino A. Daplas
2004-09-02 9:26 ` Paolo Ornati
2004-09-01 11:48 ` Paolo Ornati
2004-09-01 1:21 ` David S. Miller
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