Subject: Re: Framebuffer and refresh rate
To: Michael <macallan18@earthlink.net>
From: segv <segv@netctl.net>
List: port-sparc64
Date: 07/18/2005 14:43:08
On Sun, 17 Jul 2005 21:18:05 -0400
Michael <macallan18@earthlink.net> wrote:

> Hello,
> 
> > On Solairs, Xserver somehow switches refresh rate from 66Hz to 85Hz,
> > which then stays on untill the machine is rebooted. Is there a trick
> > to do the same with netbsd, or to force open boot to set 85Hz
> > refresh rate?
> 
> Neither NetBSD or XFree86 can (currently) change the refresh rate on
> any ffb or afb graphics card so this has to be done by OBP.
> Unfortunately there's very little information about these cards
> available and the OpenSolaris source doesn't contain anything useful
> about them. Have a look at the forth words defined by the card's
> firmware, maybe it's not r1280x1024x85 but something slightly
> different. My Creator3D only offers 1280x1024x76 for instance. 
> 
> have fun
> Michael
> 

OK I got it to run at 76 HZ, at least it's better than 66 HZ
I have another question: I notice considerable flicker on the screen
when scrolling in xterm or a gtk application. Is that because the
driver is unaccelerated? There is no flicker when running on Solaris.