Comment 136 for bug 1488719

A new release candidate 4.5-rc6 has been released with the following changes:

Imre Deak (13):
      drm/i915: Add helper to get a display power ref if it was already enabled
      drm/i915: Ensure the HW is powered during display pipe HW readout
      drm/i915/ibx: Ensure the HW is powered during PLL HW readout
      drm/i915: Ensure the HW is powered when disabling VGA
      drm/i915: Ensure the HW is powered during HW access in assert_pipe
      drm/i915/crt: Ensure the HW is powered during HW state readout
      drm/i915/ddi: Ensure the HW is powered during HW state readout
      drm/i915: Ensure the HW is powered when accessing the CRC HW block
      drm/i915/dp: Ensure the HW is powered during HW state readout
      drm/i915/dsi: Ensure the HW is powered during HW state readout
      drm/i915/hdmi: Ensure the HW is powered during HW state readout
      drm/i915/lvds: Ensure the HW is powered during HW state readout
      drm/i915/skl: Ensure HW is powered during DDB HW state readout

Will give it a go as soon as I can