linux-kernel - Re: 2.6.21-rc1: framebuffer/console boot failure

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Message-Id: <1172493697.20842.6.camel@daplas>
Date:	Mon, 26 Feb 2007 20:41:37 +0800
From:	"Antonino A. Daplas" <adaplas@...il.com>
To:	Andrew Nelless <andrew@...less.net>
Cc:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: 2.6.21-rc1: framebuffer/console boot failure

On Sun, 2007-02-25 at 11:07 +0000, Andrew Nelless wrote:
> On Sat, February 24, 2007 11:30 pm, Antonino A. Daplas wrote:
> >
> > How about booting with just vga=normal?
> >
> >
> > Tony
> >
> 
> That seems to work too. I've rebooted about 20 times in a row
> and it hasn't done it again yet. Why would this only occur
> at higher modes?
> 
> In the 2.6.20 dmesg log it reads "Nvidia board detected.
> Ignoring ACPI timer override." whereas in 2.6.21-rc1 it doesn't.
> Could this be the culprit?
> 

I don't know, probably the ACPI code can now probably detect the
presence or absence of the HPET timer.

Can you remove CONFIG_FB_VESA support from your kernel config but boot
as if you have vesafb (ie with vga=<VESA mode number>). Your machine may
boot to completion but you will have a blank screen.  But you should be
able to have an output in netconsole and you can start X. I wanted to
know if the lockup is related to the framebuffer.

Tony

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