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Re: Option "AGPFastWrite" "1" freezes X



On Mon, Sep 15, 2003 at 06:05:50PM -0400, Slaven Peles wrote:
> On September 15, 2003 17:58, Daniel Stone wrote:
> > On Mon, Sep 15, 2003 at 08:59:44AM -0400, Slaven Peles wrote:
> > > I added Option "AGPFastWrite" "1" to the "Device" section of my
> > > XF86Config-4 file (below), and when I restarted X I got a blank screen.
> > > Even keyboard wouldn't respond (tried ctrl-alt-f1 to get to text console,
> > > but it didn't work). I'm running sid with XFree86 from experimental
> > > 4.3.0-pre1v1, and kernel 2.4.22. I have Radeon 9000 card. AGP kernel
> > > modul loads fine. Does anybody know if this option is supported for my
> > > card or if any other option shouldbe enabled in order to use
> > > AGPFastWrite. I couldn't find any bug report, which describes this
> > > problem.
> >
> > That will happen, yes. Don't enable AGPFastWrite. It *will* solidlock your
> > box.
> 
> Then, would it be helpful to report a bug, or is this an experimental option 
> intended only for developers to use?

As Michel said, there's a reason it's off by default - it's basically not meant
to be used. I think there is a very small corner case where it doesn't actually
deadlock your system, but yeah.

-- 
Daniel Stone                                              <daniel@fooishbar.org>
http://www.debian.org - http://www.kde.org - http://www.freedesktop.org
"Configurability is always the best choice when it's pretty simple to implement"
  -- Havoc Pennington, gnome-list

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