[Intel-gfx] Macbook Pro Retina display problems

[Dave Airlie]

On Tue, Jul 31, 2012 at 8:33 AM, Greg KH <gregkh at linuxfoundation.org> wrote:
> Hi all,
>
> I'm trying to the the $Subject laptop up and running using the built-in
> Intel graphics chip:
>
> 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
>         Subsystem: Apple Inc. Device 00f7
>         Flags: bus master, fast devsel, latency 0, IRQ 53
>         Memory at c1400000 (64-bit, non-prefetchable) [size=4M]
>         Memory at b0000000 (64-bit, prefetchable) [size=256M]
>         I/O ports at 3000 [size=64]
>         Expansion ROM at <unassigned> [disabled]
>         Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>         Capabilities: [d0] Power Management version 2
>         Capabilities: [a4] PCI Advanced Features
>         Kernel driver in use: i915
>
> And it seems that the xorg Intel driver just doesn't recognize it at
> all.
>
> Below is my Xorg.0.log file.  I'm using a 3.5.0 kernel (with a few minor
> hardware patches for other bits of this laptop that don't work with
> 3.5.0, but no changes to the graphics drivers.)
>
> Any ideas or patches I can try out?

try writing an xorg.conf with a BusID in it and see if it works, most
likely the primary boot_vga detection is busted.

Dave.