[Bug 57365] [i945GM regression] kernel 3.7-rc1 onwards. backlight on, screen dark after KMS kicks in during boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57365

--- Comment #3 from Tomas M. <tmezzadra at gmail.com> ---
(In reply to comment #1)
> Ok a few things for you to test:
> 
> - Does this still happen with the latest drm-intel-nightly tree from
> http://cgit.freedesktop.org/~danvet/drm-intel
> 
> - For unrelated reasons I've had to backport the current drm-intel-next onto
> 3.6: http://cgit.freedesktop.org/~danvet/drm/log/?h=backport-3.6 Can you try
> to reproduce the bug there and if you can reproduce, attempt a bisect? The
> commits are all pretty much the same, so should help a lot (if it works out).


Both branches have the same result.

bisected backport-3.6 to the following commit:

24929352481f085c5f85d4d4cbc919ddf106d381
drm/i915: read out the modeset hw state at load and resume time


does it make sense? i could not revert it on linus's tree

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