linux-kernel - Re: [3/3] 2.6.21-rc7: known regressions (v2)

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Message-ID: <20070425143305.GB27215@redhat.com>
Date:	Wed, 25 Apr 2007 10:33:05 -0400
From:	Dave Jones <davej@...hat.com>
To:	"Antonino A. Daplas" <adaplas@...il.com>
Cc:	Adrian Bunk <bunk@...sta.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	pavel@...e.cz, linux-pm@...ts.linux-foundation.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	James Simmons <jsimmons@...radead.org>, gregkh@...e.de,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Richard Purdie <rpurdie@...ys.net>
Subject: Re: [3/3] 2.6.21-rc7: known regressions (v2)

On Wed, Apr 25, 2007 at 09:52:16PM +0800, Antonino A. Daplas wrote:
 > > This is really weird, as CONFIG_FB_BACKLIGHT just selects
 > > BACKLIGHT_CLASS and LCD_CLASS, and adds an entry (bl_curve)
 > > under /sys/class/backlight/*/.

Yeah, it's puzzling to me too.

 > > ACPI_IBM which is set (presumably) in
 > > Dave's kconfig, also selects the BACKLIGHT_CLASS. And the only possible
 > > framebuffer drivers in the thinkpad are vesafb and intelfb, none of
 > > which has a backlight driver.
 > > 
 > > I'm still at a loss how this happens.  Dave, can you post your config?

http://people.redhat.com/davej/config-x60

 > > And have you tried the following settings:
 > > FB_BACKLIGHT=y
 > > ACPI_IBM=n
 > > ACPI_VIDEO=n

I think I've tried that yes.

	Dave

-- 
http://www.codemonkey.org.uk
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