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Re: [PATCH] Re: [Xen-devel] [RFC] support console resolutions better tha

To: Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [PATCH] Re: [Xen-devel] [RFC] support console resolutions better than 80x25
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Mon, 14 Aug 2006 18:45:24 +0100
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On 14/8/06 4:02 pm, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> 2) On all ATI cards I tested the font loading code on so far there is
> a
> (hardware) flaw that doesn't permit loading the font into other than
> font
> slot zero; the code, however, defaults to load the font into slot 2,
> which
> means that on ATI cards this currently only works with an additional
> command line option "fontslot=0". The purpose of loading into slot 2
> is
> to preserve the (BIOS provided) font in slot 0 (perhaps slots 0 and
> 1),
> as would Linux do if it didn't set BROKEN_GRAPHICS_PROGRAMS
> (almost) unconditionally (in include/linux/vt_kern.h).

Sounds like it'd be better to make slot 0 the default and require override
if the user really cares about the BIOS font data. That sounds a lot less
likely than someone trying to use the higher-res text mode on an ATI adapter
and getting confused when it doesn't work!

It'd be nice if we could also have the Linux-style linearfb code, so we
could use the higher res graphics modes. I suppose that would be a lot more
work though, and should fit in the framework that this patch provides (in
particular, the info structure passed to domain0 should be able to support
that, right)?


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