Comment # 20 on bug 63599 from wojtek

yeah :) 
with vramlimit=16 xeyes works perfect :).
KDM (4.10.5) is working (without artifacts).

kernel-3.11-rc1
from(http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-fixes-3.11)

I'll do more tests later