linux-kernel - Re: [PATCH V2 1/4] EFI: Stash ROMs if they're not in the PCI BAR

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Date:	Fri, 03 Aug 2012 00:57:33 +1000
From:	Francois Rigaut <frigaut@....anu.edu.au>
To:	Greg KH <gregkh@...uxfoundation.org>
CC:	Matthew Garrett <mjg59@...f.ucam.org>, matt.fleming@...el.com,
	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, linux-pci@...r.kernel.org, bhelgaas@...gle.com
Subject: Re: [PATCH V2 1/4] EFI: Stash ROMs if they're not in the PCI BAR

Greg, Seth,

Here is what the message.log shows:

switching to the HD4000 (integrated):

Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x42803c0
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: CGXMuxAcknowledge: Posting glitchless acknowledge
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x042803c0 device: 0x10c678320  isBackBuffered: 0 numComp: 1 numDisp: 3
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x42803c0
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003d
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003e
Aug  3 00:49:55 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003f

switching to the nvidia (discrete):

Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x42803c0
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003d
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003e
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x3f003f
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: CGXMuxAcknowledge: Posting glitchless acknowledge
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x042803c0 device: 0x10c678320  isBackBuffered: 0 numComp: 1 numDisp: 3
Aug  3 00:50:35 poliahu.ctio.noao.edu WindowServer[79]: Received display connect changed for display 0x42803c0

Hope that helps.
Francois



On 02/08/12 20:34, Greg KH wrote:
> On Wed, Aug 01, 2012 at 11:02:42PM -0500, Seth Forshee wrote:
>> On Wed, Aug 01, 2012 at 04:21:47PM -0700, Greg KH wrote:
>>> On Wed, Aug 01, 2012 at 05:54:00PM +0100, Matthew Garrett wrote:
>>>> On Tue, Jul 31, 2012 at 03:32:40PM -0700, Greg KH wrote:
>>>>
>>>>> With this series, does the latest MacBook work properly for the Intel
>>>>> graphics driver?  Or is this to resolve some other hardware issue?
>>>> Apple only seem to provide the ROM for the radeon. Intel normally
>>>> stands a much better chance of working without a ROM - the only thing it
>>>> really uses it for is the VBT, and I'm thinking about a couple of ways
>>>> of handlng that.
>>> Ok, thanks for letting me know.  For some reason, the gmux isn't working
>>> on the latest MacBook Pro so I can't get the vga switched to the Intel
>>> PCI device.  Rumor has it the osx tool at
>>> http://codykrieger.com/gfxCardStatus will switch into the Intel chip
>>> until the laptop is hard powered off, so it is possible, just need to
>>> figure out how to make the hardware do the switch...
>> There's a tool that enables some verbose logging which records all the
>> I/O to the gmux. It works for me with a Macbook Pro 8,2 running OS X
>> Lion, so you might give it a try.
>>
>> All you need to do is clone https://github.com/ah-/switcher.git, build,
>> and run switcher. If it works you'll see messages prefixed with AGC in
>> dmesg. Then you can use gfxCardStatus to force some switches between the
>> integrated and discrete cards. After that you'll want to grab
>> /var/log/kern.log to get the full logs of everything that happened.
>>
>> If you try this and it works, I'd appreciate it if you could send me a
>> copy of kern.log so I can apply the information towards getting graphics
>> switching into apple-gmux.
> Francois, any chance you can ty this and let Seth know the results?  I
> don't have OSX on my machine anymore to do this myself.
>
> thanks,
>
> greg k-h

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