> At least on my docs this bit is listed for SNB and IVB only. After > this patch I get a GPU hang every time I boot the HSW machine. Maybe > we need this only for some specific pre-production machines, but not > all? (in this case, our docs need to be fixed) Ooops, config db for the details on pre-production HSW that need the wa. Wasn't quite thinking it could hang the newer ones though. -- Damien