linux-kernel - Re: mbp_nvidia_bl: Remove DMI dependency

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Date:	Tue, 11 Jan 2011 19:07:14 +0100
From:	Mourad De Clerck <mourad@...azul.com>
To:	Richard Hughes <hughsient@...il.com>
CC:	Matthew Garrett <mjg59@...f.ucam.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Richard Purdie <rpurdie@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Richard Hughes <richard@...hsie.com>
Subject: Re: mbp_nvidia_bl: Remove DMI dependency

On 11/01/11 18:05, Richard Hughes wrote:
>>> The only slight change is that gnome-power-manager needs to be updated
>>> to use /sys/class/backlight/apple_backlight instead of mbp_backlight.
>>
>> gnome-power-manager needs not to have a hardcoded list of backlights.
> 
> Mourad, how many devices do you have in /sys/class/backlight?

I have two: nv_backlight and mbp_backlight (now apple_backlight). The
trouble is that nouveau's nv_backlight is broken on my hardware (NVAF).

(I think it's this issue:
https://bugzilla.redhat.com/show_bug.cgi?id=625171 - max_brightness is
wrong)

When I remove nv_backlight completely and just have apple_backlight,
g-p-m works properly. When they're both there, g-p-m prefers nv_backlight.

-- Mourad
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