linux-kernel - Re: [PATCH] gmux: Fix backlight set function

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Date:	Thu, 04 Oct 2012 11:53:59 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
	Matthew Garrett <mjg@...hat.com>
Subject: Re: [PATCH] gmux: Fix backlight set function

On Fri, 2012-09-14 at 14:06 +0100, Grant Likely wrote:
> What patches are you running on top of mainline for the mbp8,3?

A slightly simpler answer: I'm running the Fedora 18 3.6 kernel, with
these two patches backported:

commit f462ed939de67c20528bc08f11d2fc4f2d59c0d5
Author: Matthew Garrett <mjg@...hat.com>
Date:   Fri Jul 27 12:58:53 2012 -0400

    efifb: Skip DMI checks if the bootloader knows what it's doing

commit a7d92035a1d64242cbc1f79577e66f230fe59732
Author: Matthew Garrett <mjg@...hat.com>
Date:   Fri Jul 27 17:16:17 2012 -0400

    x86, EFI: Calculate the EFI framebuffer size instead of trusting the firmware

The F18 kernel has Matthew's stuff to handle PCI ROMs already
backported, although it's broken; it still prioritises the
IORESOURCE_ROM_SHADOW bit and returns 0xC0000 when there is a ROM from
EFI. You'll have to fix that too, so it matches commit 463edf567.

It still fails the same way — the Intel driver never manages to display.
So I'm back on my 3.5.0-based build until I have some time to work it
out.

-- 
dwmw2

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