[CentOS] Centos 7 and Kably lake: black screen

Sat Nov 12 20:39:24 UTC 2016
Louis Lagendijk <louis at fazant.net>

On Sat, 2016-11-12 at 15:34 -0500, Fred Smith wrote:
> On Sat, Nov 12, 2016 at 09:15:22PM +0100, Louis Lagendijk wrote:
> > 
> > I got a new laptop as my old one died: an HP Probook 470 G4. 
> > I installed Centos 7 1511.
> > The laptop has a Kaby Lake i5 CPU and an 
> > 01:00.0 3D controller: NVIDIA Corporation Device 134e (rev a2). 
> > Fedora recognizes it as a GM108M/930MX. This may give some hints,
> > but
> > it is not that the standard kernel does not support it, this output
> > comes from the 4.8.7 mainline kernel which should support this
> > configuration? GM108 support was added in kernel 4.7, Kaby lake
> > support
> > was added in 4.5...
> > 
> > When I boot nothing shows up after the UEFI Grub menu: the system
> > runs
> > but nothing is shown on the display, except for a non-blinking
> > cursor
> > in the upper left of the screen. I tried a number of things:
> > - Installed the latest ml-kernel from Elrepo (4.8.7-1)
> > - I also tried the following on the kernel commandline:
> > 	nomodeset i915.nomodeset=0 nouveau.modeset=0
> > Nothing changes the fact that there is no display.
> > 
> > I had to install Centos 7 using vnc as even a text install did not
> > work
> > 
> > Does anybody have some idea what the cause could be and what to try
> > next?
> 
> Did you try CTRL-ALT-F2 or -F3 ? perhaps X has just died (or not been
> properly started), but that would get you a text-mode consosle from
> which to work and experiment.
> 
> if that works, you could try typing "startx" (lose the quotes). which
> may provide informative errors. or not. 
> 
> YMMV
> 
> 
Thanks for your response, but...
No, tried it, but that did not work either unfortunately.
Louis