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Re: Missing HDMI display

On Sun, 2017-07-30 at 19:23 -0400, Felix Miata wrote:
Thanks, Felix...
> Michael Milliman composed on 2017-07-30 15:32 (UTC-0500):
> > Ok, guys.  I'm working on getting Debian 9.1 with Gnome DEfully
> > functional with a new laptop.  A couple of the issues have been
> > addressed already, and fixed.  The next issue is a missing HDMI
> > output.
> > I'm running a very new HP Pavilion Power laptop (model number 15-
> > cb045wm with core i7-7700 CPU, Intel Kabylake HD Graphics GT2, and
> > NVIDIA GeForce GTX 1050 GPU.  The laptop has an HDMI connector on
> > the
> > side, and it works with Windows 10.  However, the HDMI display does
> > not
> > show up under linux.  The HDMI output does show up under
> > Pulseaudio,
> > though it appears to be non-functional, i.e., when I set the
> > configuration up for HDMI output, nothing comes out through the
> > HDMI
> > connection.  I have no real idea how to troubleshoot this issue,
> > and
> > suspect that this system may be new enough that the drivers have
> > not
> > caught up with the chipset, and so I may be out of luck for a
> > little
> > while.
> > I have searched the debian-user list archive and found nothing that
> > appeared to be useful.  Any information one of you Gurus might have
> > will be appreciated.
> Sounds to me like your key search terms should have been 'linux
> hybrid graphics'
> or 'debian hybrid graphics', and you don't have any of the possible
> candidates
> installed.
> https://wiki.debian.org/Bumblebee looks like a place to start.
Check out this link, and installed the proprietary NVIDIA driver along
with Bumblebee.  This solved another problem when the NVIDIA driver was
installed which caused GDM to crash on boot.  However, this did not
solve the issue with the HDMI output.  I still show only the main
display in gnome-control-center, no HDMI display.

I suspect, therefore, that the problem is with the other VGA device
showing on lspci: 
    VGA compatible controller [0300]: Intel Corporation Device
    [8086:591b] (rev 04)
which shows as "Intel Kabylake HD Graphics GT2" in

> These should be useful even though not intended for Debian:
> https://wiki.archlinux.org/index.php/PRIME
> https://wiki.archlinux.org/index.php/NVIDIA_Optimus
Note that there does not appear to be an Intel Optimus device on the
system, the NVIDIA card if an Intel GeForce GTX.
73s de Mike, WB5VQX