Loki doesn't see my GTX1070

Question

It seems that Loki can't see my discrete GPU (Nvidia GTX1070). Here's the output from a couple of useful commands I've seen listed while trying to debug this.

$ inxi -Gx
Graphics:  Card: NVIDIA Device 1b81 bus-ID: 01:00.0
           Display Server: X.Org 1.18.3 drivers: fbdev (unloaded: vesa) FAILED: nouveau
           Resolution: [email protected]
           GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.8, 256 bits)
           GLX Version: 3.0 Mesa 11.2.0 Direct Rendering: Yes
$ lspci | grep VGA
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1b81 (rev a1)

I have tried installing the 370 drivers several times. I always get a black screen upon reboot. Here is the sequence I've tried many times:

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-370
sudo reboot

After reboot, I get a black screen. I then purge the nvidia driver and reboot into omfg low-resolution mode (purgatory?). My monitor is 4K and I'd like to use those pixels...

Loki is also unable to identify my LG monitor.

Is there some "proper" means of installing the Nvidia 370+ drivers?

Answer 1

The issue was with UEFI Secure Boot. I have an ASUS motherboard. I booted into BIOS and then disabled Secure Boot. To install the latest driver I used,

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
sudo apt-get install nvidia-370
sudo reboot

and then everything was perfect!