[Matt Devo]

@Milhouse @fritsch looks like the Skylake/Kabylake GPU freq scaling issue is still here, for software decoded playback.  Recently started using the Netlfix plugin, and on my KBL Chromebox it stutters/isn't smooth unless GUI overlay is showing.  w/o overlay, GPU idles at 300Mhz; with overlay, it's 450Mhz+.  With kernels 4.18/4.19 however, there's no /sys/kernel/debug/dri/0/i915_min_freq to set, best I can tell.

FWIW, no issue on my Haswell/Broadwell boxes.