FreeBSD Port: xf86-video-intel-2.99.917.20170228

[Masachika ISHIZUKA]

  My Dell XPS12 (9Q33, Corei7-4500U, haswell) is working well with
xf86-video-intel-2.99.917.20170228 (sna) without kld_list="i915kms".

  Issue for both r435512(2.99.917.20170228) and r433863(2.99.917.20170103)
is not showing any windows after resuming blanking screen.
Workaround is that the switching console (ctl-alt-F1) and
reswitching x11 (clt-alt-F9). It's shown windows again.
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Masachika ISHIZUKA