Created attachment 125384 [details] Xorg.0.log including the drm.debug=0xff failures X is falling back to split CRTC mode + swcursor due to a failure to configure wm on skl, drm-intel-next-queued commit 5b249600c1483976b0a7501ba25a8ba8b86672e1 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Jul 27 19:32:29 2016 +0100 drm/i915: Fix up some stray to_i915(dev) after a recent merge Failures all look like [ 809.473] KMSG: [drm:skl_update_scaler_plane] Updating scaler for [PLANE:28:p lane 1B] scaler_user index 1.3 [ 809.473] KMSG: [drm:intel_plane_atomic_calc_changes] [CRTC:30:pipe B] has [P LANE:28:plane 1B] with fb 141 [ 809.473] KMSG: [drm:intel_plane_atomic_calc_changes] [PLANE:28:plane 1B] vis ible 1 -> 1, off 0, on 0, ms 0 [ 809.473] KMSG: [drm:skl_compute_plane_wm] Requested display configuration ex ceeds system watermark limitations [ 809.473] KMSG: [drm:skl_compute_plane_wm] Plane 1.0: blocks required = 6/0, lines required = 1/31 and affect DRM_IOCTL_MODE_CURSOR as well as DRM_IOCTL_MODE_SETCRTC
Fixed with the recent skylake watermark fixes.
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