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Message-ID: <20100211204441.GA5956@srcf.ucam.org> Date: Thu, 11 Feb 2010 20:44:41 +0000 From: Matthew Garrett <mjg59@...f.ucam.org> To: Soeren Sonnenburg <sonne@...ian.org> Cc: nicolas@...chat.ch, felipe_alfaro@...uxmail.org, Julien BLACHE <jb@...ache.org>, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: Brightness control for MacBook Pro - Nvidia 9400 On Thu, Feb 11, 2010 at 09:38:45PM +0100, Soeren Sonnenburg wrote: > Dear all, > > I am booting a MacBookPro5,3 using elilo and efifb. Now I'd like to use > pommed to control display brightness (which won't work). Digging around > in mbp_nvidia_bl.c I figured out that tries to control the geforce 9600M > instead of the currently active geforece 9400m So, first of all, use nouveau instead. But moving on... > 02:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9600M GT] (rev a1) > 03:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M] (rev b1) > > Does anyone have an idea which bytes to tweak to change brightness > levels for the 9400? Seems like 0x52f does not work - at least > setpci -s 03:00.0 0x52f.B=10 fails... Those are mmio registers, not PCI config ones. You won't be able to change them with setpci. -- Matthew Garrett | mjg59@...f.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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