I tried to purge nvidia proprietary drivers and boot with nouveau and
got exactly the same issue. The only difference is my screen is just
Same errors in dmesg:
fifo: SCHED_ERROR 08 
I use Nvidia GTX 970.
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Booting with Nvidia GTX 970 hangs with an orange screen in kernels 4.7
and 4.8rc1 (but works with 4.4.0)
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