From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Wed, 17 Oct 2012 06:53:17 -0400
To: 9fans@9fans.net
Message-ID: <9d477154bbd1081f1be27eadc0f2c1e2@brasstown.quanstro.net>
In-Reply-To: <20121017105018.GA500@polynum.com>
References: <20121014130956.GA563@polynum.com>
	<7430ebb32d753b51abc765650a489b40@brasstown.quanstro.net>
	<507E3ADB.2040103@gmail.com> <20121017105018.GA500@polynum.com>
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Subject: Re: [9fans] 16:9 display and freeze
Topicbox-Message-UUID: be399c54-ead7-11e9-9d60-3106f5b1d025

> > This sounds more like a hardware problem in your machine (not display)
> > than a bug in Plan 9. Plan 9 crashing hard shouldn't do anything to the
> > bios (unless it did something *really* nasty in /dev/realmode, but I
> > can't think of anything that would trash the bios).
>
> Thanks to both for your reply. I will have to investigate (and see what
> is producing this).

i would recommend using aux/realemu.  it provides a measure of safety
when doing mode setting.  it could be that the vesa bios does go off
into the woods when it detects a 16:9 monitor.  the vesa bios has access
to this information through the edid sideband communication, which
is available on almost every video interconnect, including vga.

- erik