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Date: Tue, 22 Dec 2009 21:29:54 +0100
From: Marius Strobl <marius@alchemy.franken.de>
To: Anton Shterenlikht <mexas@bristol.ac.uk>
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Cc: freebsd-questions@freebsd.org, freebsd-sparc64@freebsd.org
Subject: Re: Signal over range,
	WAS: X -configure fails: Number of created screens does not match
	number of detected devices. Configuration failed.
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On Tue, Dec 22, 2009 at 08:12:14PM +0000, Anton Shterenlikht wrote:
> On Tue, Dec 22, 2009 at 12:26:03PM -0700, Warren Block wrote:
> > On Tue, 22 Dec 2009, Anton Shterenlikht wrote:
> > > Warren, thank you, but this doesn't help. I've added:
> > >
> > > Section "Monitor"
> > > 	Identifier   "Monitor0"
> > > 	HorizSync	30-50
> > > 	VertRefresh	60
> > > EndSection
> > >
> > > Section "Device"
> > > 	Identifier  "Card0"
> > > 	Driver      "mach64"
> > > 	BusID       "PCI:0:2:0"
> > > EndSection
> > 
> > Hmm.  Some web searching says non-Intel platforms might need a different 
> > reference clock:
> > 
> > http://www.gentoo.org/doc/en/gentoo-sparc-faq.xml#doc_chap4_sect1
> 
> yes, now you told me I see it's actually in the logs:
> 
> (--) MACH64(0): Reference clock 157.5/11 (14.318) MHz.
> (II) MACH64(0): If modes do not work on Ultra 5/10 or Blade 100/150,
> 	set option "reference_clock" to "28.636 MHz" or "29.5 MHz"
> 
> by using either 28.636 or 29.5 I now get no "signal over range".

The right value for a Rage XL is 29.5 MHz.

Marius