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Message-ID: <1520620637.200975.1355955029721.JavaMail.root@elliptictech.com> Date: Wed, 19 Dec 2012 17:10:29 -0500 (EST) From: Tom St Denis <tstdenis@...iptictech.com> To: Fabio Coatti <fabio.coatti@...il.com> Cc: linux-kernel@...r.kernel.org Subject: Re: 3.7.X vs 3.6.11 HP Folio 9470m brightness regression? ----- Original Message ----- > From: "Fabio Coatti" <fabio.coatti@...il.com> > To: linux-kernel@...r.kernel.org > Sent: Wednesday, 19 December, 2012 5:01:30 PM > Subject: 3.7.X vs 3.6.11 HP Folio 9470m brightness regression? > > Hi, > I'm testing kernels 3.7.X vs 3.6.11 on an HP Folio 9470m machine, > i915 > driver for a VGA compatible controller: Intel Corporation 3rd Gen > Core > processor Graphics Controller (rev 09) 8086:0166 > > With 3.6.11, the brightness can be correctly set using fn+f9/10: kde > shows the bar and brightness changes. > > With 3.7.1 kde shows the percentage bar and > /sys/class/backlight/acpi_video0/brightness is updated, but the > screen > brightness does not changes. I had a similar problem with my Dell laptop and i915/acpi... Is there another acpi_video? device? In my case two showed up in 3.7 whereas in 3.6 there was one. In 3.7 it was controlling the wrong one apparently. Tom St Denis -- 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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