Date: Wed, 27 Feb 2013 15:27:36 -0500 From: John Baldwin <jhb@freebsd.org> To: matt <sendtomatt@gmail.com> Cc: Adrian Chadd <adrian@freebsd.org>, freebsd-current@freebsd.org, freebsd-acpi@freebsd.org Subject: Re: Fixing X220 Video The Right Way Message-ID: <201302271527.37079.jhb@freebsd.org> In-Reply-To: <512E51FF.5010701@gmail.com> References: <512A6FFF.2060603@gmail.com> <201302271200.22976.jhb@freebsd.org> <512E51FF.5010701@gmail.com>
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On Wednesday, February 27, 2013 1:35:43 pm matt wrote: > On 02/27/13 09:00, John Baldwin wrote: > > If that is true, it's because your BIOS is lying. Do you have a URL to > > your ASL lying around already? > Too big for pastebin :( +500k > > https://docs.google.com/file/d/0B6YlMzJxarGbVnotLUdNWWNTVG8/edit?usp=sharing Here is where I find _DOD and _DOS methods: Device (PCI0) Device (VID) Name (_ADR, 0x00020000) // _ADR: Address Method (_DOS, 1, NotSerialized) // _DOS: Disable Output Switching Method (_DOD, 0, NotSerialized) // _DOD: Display Output Devices Device (PEG) Name (_ADR, 0x00010000) // _ADR: Address Device (VID) Name (_ADR, 0x00) // _ADR: Address Method (_DOS, 1, NotSerialized) // _DOS: Disable Output Switching Method (_DOD, 0, NotSerialized) // _DOD: Display Output Devices PCI0.VID is a PCI device at pci0:0:2:0. PCI0.PEG would be a PCI-PCI bridge at pci0:0:1:0. It would have a child device at 0:0 that would be PCI0.PEG.VID. Does the X220 have a switchable GPU (e.g. it has built-in Intel graphics, but also has an Nvidia GPU or some such?). If so, I imagine that PCI0.VID is the Intel graphics and PEG is the non-Intel. The output of 'pciconf -lcv' would be useful to determine that. If both PCI devices exist you shoudl have both acpi_video0 and acpi_video1. However, it may be that the acpi_video driver doesn't cope well with having multiple devices. -- John Baldwin
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