linux-kernel - DVI/EDID broken with Intel i945 graphics and 2.6.37-rc2

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Message-ID: <20101116184914.GA15794@mac.home>
Date:	Tue, 16 Nov 2010 19:49:14 +0100
From:	Tino Keitel <tino.keitel@...ei.de>
To:	linux-kernel@...r.kernel.org
Subject: DVI/EDID broken with Intel i945 graphics and 2.6.37-rc2

Hi,

2.6.37-rc2 doesn't seem to detect the LCD connected via DVI on my Mac
mini Core2 Duo with i945 graphics:

[drm] initialized overlay support
No connectors reported connected with modes
[drm] Cannot find any crtc or sizes - going 1024x768

The text console is just black, and X uses a bogus resolution
(1152x864). The native resolution of the LCD is 1680x1050.

It works with 2.6.36.

Note that the Mac mini reports the EDID data via the analog GPIO port
IIRC (if that matters).

Regards,
Tino

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