I do: even with the current Fedora Kernel (4.17.19) and the latest
Lenovo BIOS (which got updated recently, presumably for spectre
mitigation).  Just verified this when booting this morning (accidentally
chose the wrong kernel in grub).

I have made little progress on narrowing down which kernel features
cause the problem when enabled.  Your vanilla testing kernel works, the
same version of the fedora configured kernel does not.  But there's a
lot of parameter space to search, each "tweak/compile/boot/fail"
iteration takes an hour, and this is the laptop I use for actual work.
So slow progress :(

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https://bugs.launchpad.net/bugs/1751268

Title:
  bionic desktop does not boot with external monitor attached -
  [drm:ironlake_crtc_enable [i915]] *ERROR* mode set failed: pipe A
  stuck / vblank wait timed out on crtc 1

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