drm/i915 does not detect LVDS modes

[Francois Tigeot]

Hi,

On Fri, Jan 20, 2017 at 04:34:15PM +0200, karu.pruun wrote:
> 
> When loading i915 with macboopro6,2 (with debug on) the following shows:
[...]
> and the result is a frozen screen. The keyboard works and I can ssh to the
> machine to reboot.
> 
> However, linux-4.9 gives
[...]
> and the screen/keyboard work fine.
> 
> I am focusing on intel_lvds.c to bring it closer to drm/i915 linux-4.9;
> however, maybe I am missing something obvious---can anyone give suggestions
> as to where else to look?

The drm/i915 driver in master is currently based on Linux 4.6 + a few fixes
from 4.7.

Can you check if Linux 4.6 itself works fine on your hardware ? this should
reduce the search domain a bit.

-- 
Francois Tigeot