Comment 3 for bug 1529020

I've patched linux-lts-vivid-3.19.0/ubuntu/i915/intel_display.c and linux-lts-vivid-3.19.0/drivers/gpu/drm/i915/intel_display.c with the change presented in http://lists.freedesktop.org/archives/intel-gfx/2015-December/083563.html and the issue does not reproduce. However, the behaviour of the cursor at the left edge of the second screen is sub-optimal.