It got the same GPU error code in Xubuntu 14.10 formal release in the same BDW devices. (BIOS: BDW-E2R1.86C.0095.R08.1410190256, 10/19/2014, d-step CPU) in 3200x1800, and pass the test in 1920x1080.
I will try to get newer BDW CPU/DEVICE for its verification (I don't have them until now).
It got the same GPU error code in Xubuntu 14.10 formal release in the same BDW devices. (BIOS: BDW-E2R1. 86C.0095. R08.1410190256, 10/19/2014, d-step CPU) in 3200x1800, and pass the test in 1920x1080.
I will try to get newer BDW CPU/DEVICE for its verification (I don't have them until now).