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Re: [pkgsel] Add xresprobe, discover and laptop detect for hw detection

On Tue, Jan 17, 2006 at 11:55:49AM +0100, Frans Pop wrote:
> On Tuesday 17 January 2006 11:37, Sven Luther wrote:
> > xresprobe is a very nice tool, it will investigate the connected
> > monitor, and allow you to set the resolutions supported by the monitor.
> Despite the danger of stating the obvious...
> Note though that it is limited to laptop displays and DDC compliant 
> monitors, i.e. (AFAIK) does not support monitors connected with a 
> regular, old-fashioned VGA cable.

I fail to understand your point.  If a monitor isn't a laptop panel or
some other display which has information in the BIOS tables, and doesn't
do DDC ... what would you like xresprobe to do?

> The description also says it only works on i386 (including AMD64 I 
> presume) and ppc.

xresprobe is perfectly portable.  ddcprobe is not, although that's
fixable (by making it a wrapper around external programs; the one that
reads the EDID out of /proc on powerpc is already there, but the version
of vbetool which uses x86emu needs to grow DDC functionality, which is
trivial, and then ddcprobe needs to be rejigged to support same).

> It thus has a limited (though growing) application and other types of 
> systems will also need to be supported (probably using current manual 
> resolution/frequency selection methods).

No, they won't need to be supported by xresprobe; you misunderstand its

xresprobe is an external program called by the xserver-xorg postinst,
which is able to seed the xserver-xorg debconf values.  Which means
that, if it's successful, then you don't need to bother asking
questions.  If not, then you just walk the same code paths as always.

So, there's a potential *huge* net gain.  And no net loss.


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