[RFC] drm + i915 DP MST code preview

Dave Airlie airlied at gmail.com
Thu May 1 21:51:39 PDT 2014

TODO: fix fbcon

I forgot to mention no fbcon yet :-)


On 2 May 2014 14:39, Dave Airlie <airlied at gmail.com> wrote:
> Hi,
> Branch: http://cgit.freedesktop.org/~airlied/linux/log/?h=drm-i915-mst-support
> Okay I've gotten this to light up some monitors using -modesetting so it
> must be ready for an initial posting,
> Tested on Haswell so far with Lenovo Ultradock and with Ancell MST Hub devices,
> (checked it can detect the Dell 32" Monitor - but that is another world of pain).
> The main problem is documented in the i915 patch, state check backtraces abound.
> There is still quite a bit of work todo for a compliant solution, but I don't
> have a compliance tester so I can only imagine the fail.
> The helper interface can probably be cleaned up, the whole ACT area is bit
> of a mess, and I'd probably need an idea from other GPUs how best to do that,
> Dave.
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