Comment 42 for bug 1369216

I have elementary OS 0.4 Loki (based on Ubuntu 16.04.2 LTS) on a Macbook Pro (Retina).

Yesterday i installed the HWE Kernel and Xorg.

apt install --install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04

Today i rebootet the system since the resolution of the display was strange after suspend. But then i had only tty, no desktop.

I rebootet again and everything was normal again.

But the reported problem is still the case:

davidak@unibook:~$ systemctl status gpu-manager.service
● gpu-manager.service - Detect the available GPUs and deal with any system changes
   Loaded: loaded (/lib/systemd/system/gpu-manager.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Do 2017-03-09 10:16:36 CET; 15min ago
  Process: 1013 ExecStart=/usr/bin/gpu-manager --log /var/log/gpu-manager.log (code=exited, status=0/SUCCESS)
 Main PID: 1013 (code=exited, status=0/SUCCESS)

Mär 09 10:16:36 unibook systemd[1]: Starting Detect the available GPUs and deal with any system changes...
Mär 09 10:16:36 unibook gpu-manager[1013]: /etc/modprobe.d is not a file
Mär 09 10:16:36 unibook gpu-manager[1013]: /etc/modprobe.d is not a file
Mär 09 10:16:36 unibook gpu-manager[1013]: /etc/modprobe.d is not a file
Mär 09 10:16:36 unibook gpu-manager[1013]: /etc/modprobe.d is not a file
Mär 09 10:16:36 unibook gpu-manager[1013]: /etc/modprobe.d is not a file
Mär 09 10:16:36 unibook gpu-manager[1013]: Error: can't open /lib/modules/4.8.0-41-generic/updates/dkms
Mär 09 10:16:36 unibook gpu-manager[1013]: Error: can't open /lib/modules/4.8.0-41-generic/updates/dkms
Mär 09 10:16:36 unibook gpu-manager[1013]: update-alternatives: Fehler: keine Alternativen für x86_64-linux-gnu_gfxcore_conf
Mär 09 10:16:36 unibook systemd[1]: Started Detect the available GPUs and deal with any system changes.

Not sure if it is related since people have it also with stock xenial.