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MBP Early 2011 enable ATI/INTEL switchable graphics in Boot Camp?


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#1
jucytec

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Is anyone working on getting the switchable graphics to load in Boot Camp? It'll be nice to run INTEL Drivers for most of the time when using MBP. Such a shame that Boot Camp drivers do not support or even show the Intel HD card under device list in Windows.

#2
qreed

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Not sure if someone is working on it: the IGP is disabled by the BIOS emulator (that's why it doesn't shows up in the device list). The only way to enable it is to modify the BIOS (quite hard) or do a re-enable trick in the bootsector like this one (if there are any bytes left).

It's probably easier to spam Apple.

#3
Deefa

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How does the efi/bios emulation stop the Intel HD 3000 from being allocated resources?

If you suspend/resume win7 on a 2011 15/17" MBP, the Intel HD 3000 device is found, drivers installed but the device cannot be initialised as there are not sufficient resources. The device does not persist after reboot.

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It would be nice to able to enable resource allocation for the Intel GPU, with a little MBR patch!, to be able to use its quicksync features (I'm not bothered about switching b/w the AMD & Intel GPU).

#4
Deefa

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I'm pretty keen to investigate this - anyone know how to dump the efi bios emulator? code to disk so I can search for the code that's disabling the HD 3000.

#5
metatech

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Hi,

The Intel integrated GPU on Core i3/5/7 can normally be enabled in BIOS mode with the following line in grub.cfg :
setpci -d 8086:0044 54.b=0b
You may need to customize to your CPU PCI ID, which can be obtained with "lspci"

metatech





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