Date: Sat, 07 Jun 2014 01:11:45 +0000 From: bz-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 190186] [patch] i915 driver: enable opregion handling Message-ID: <bug-190186-8-5EYQ8A5JeP@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-190186-8@https.bugs.freebsd.org/bugzilla/> References: <bug-190186-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190186 --- Comment #6 from Henry Hu <henry.hu.sh@gmail.com> --- (In reply to Adrian Chadd from comment #5) > Absolutely! > > http://people.freebsd.org/~adrian/laptop/lenovo_x230/ > > > -a Have you tried acpi_call -p "\_SB.PCI0.VID.LCD0._BCM" -i <brightness> And what's the value of acpi_call -p "\VIGD" acpi_call -p "\_SB.PCI0.VID.DRDY" VBRC() calls SMI directly. I have no idea what it is doing inside SMI. _SB.PCI0.VID.LCD0._BCM stores brightness in BRLV and calls _SB.PCI0.LPC.EC.BRNS() and UCMS(0x16). UCMS() calls SMI directly so I have no idea what it is doing. If _SB.PCI0.VID.DRDY is true, it calls _SB.PCI0.VID.AINT(). AINT() triggers an ASLE interrupt to set the brightness through the driver. I'm not sure what went wrong here. -- You are receiving this mail because: You are the assignee for the bug.
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