https://bugs.freedesktop.org/show_bug.cgi?id=66963
--- Comment #32 from Sergey orbitgray@ukr.net --- Here are some testing results: bug66963-no-voltage.diff - hangs 5 of 5 times bug66963-no-cg.diff - hangs 5 of 5 times bug66963-no-gen2.diff - hangs 5 of 5 times
bug66963-no-ss.diff hanged 4 times, then 2 normal boots, 2 hangs, 1 boot with Xorg delays, 1 boot with garbage for Xorq (tty console was fine), 1 hang Very inconsistent.
Also retried all 4 together: Boots OK most of the time, though I get 2 hangs and 1 Xorg big delays in between ~10 successful tries. Specially if reset is used instead of shutdown, but sometimes it happens after shutdown too.
Will continue trying other combinations.