Re: Option "AGPFastWrite" "1" freezes X
On Tue, 2003-09-16 at 00:07, Daniel Stone wrote:
> 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.
Actually, it simply doesn't work on some systems, but does on others,
otherwise it wouldn't be offered as an option at all.
--
Earthling Michel Dänzer \ Debian (powerpc), XFree86 and DRI developer
Software libre enthusiast \ http://svcs.affero.net/rm.php?r=daenzer
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