(In reply to bruno.pagani from comment #45)
> (In reply to Vitaly Torshyn from comment #43)
> > (In reply to aidan from comment #40)
> > > (In reply to Vitaly Torshyn from comment #39)
> > > > Hi folks,
> > > > Please see previously attached dmesg and xorg logs.
> > > > I was using Ben's git repo to apply a patch for 3.18.2 kernel.
> > > > Actually, the patch is only removed INIT HUB error. In addition, X was
> > > > managed to start with AIGLX enabled but nouveau crashed on start any GL
> > > > enabled application.
> > > > Please note, the same behavior with SLI enabled. 
> > > > HW is Lenovo Y510P with dual GT 755M video.
> > > > 
> > > > Please, feel free to request additional information.
> > > 
> > > I have a similar laptop, and I think the X crashing is this
> > > (https://bugs.freedesktop.org/show_bug.cgi?id=88514) issue.
> > 
> > I don't think so. The X crashing even with second nvidia GPU installed. In
> > case intel gpu is turned off by notebooks firmware.
> 
> I don’t understand your message Vitaly, but I think he is right, this is the
> same bug. I’m having the same symptoms he has.

Sorry, I wasn't clear in my earlier message. I have an SLI enabled laptop and
second GPU can be removed. Without second GPU intel's GPU is turned on by BIOS
(firmware). 
So, X crashed with/without second GPU.