White screen at the end of booting - even from USB boot or internet recovery
2011 MacBook pro late edition formerly rinning 10.12.2 I am getting a white screen at the end of the booting process. I log in (encrypted drive) and see the apple plus boot to the end and then a white screen. I can not boot into recovery mode or internet recovery mode (same problem - boot starts and goes through the entire boot but goes into a white screen at the end). I created a bootable USB drive and that does the same thing (it does work on my other Macs). It does boot into single user mode, and fsck -fy does not detect a hard drive problem. Hardware testing on boot does not detect a hardware problem. (I am running it again).
Despite the negative hardware test I'm going to guess its a memory issue. Just prior to going down the entire system slowed drastically and started doing disk swaps for anything that required memory.