I just updated from 10.11.6 to 10.12, and there is a really annoying artifact on the upper left corner: a black region flashes all the time, exactly like description in this previous post.
HD 530 Glitches under Sierra
My specs is as follows:
MB: ASRock z170 Fatality ITX (contains BCM94352)
CPU: i7-6700K
Mem: Kingston HyperX 3200
Boot Disk: ADATA SP920 250G
Clover: EFI-3761
Initial 10.11.6 install...
MB: ASRock z170 Fatality ITX (contains BCM94352)
CPU: i7-6700K
Mem: Kingston HyperX 3200
Boot Disk: ADATA SP920 250G
Clover: EFI-3761
Initial 10.11.6 install...
HD 530 Glitches under Sierra