No signal to display after switching to proprietary NVIDIA drivers

[melodylane]

I'm really enjoying Linux Mint so far, but have encountered one major problem.

I switched to the proprietary Nvidia drivers (by adding the graphics-ppa and then selecting the latest driver 396 in the Driver Manager), and then upon restarting no display signal was sent to either of my displays. If I boot in recovery mode everything seems to be fine. Anyone know why this might be?

System Info:

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System:    Host: desktop Kernel: 4.15.0-34-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Cinnamon 3.8.9 (Gtk 3.22.30-1ubuntu1)
           Distro: Linux Mint 19 Tara
Machine:   Device: desktop System: Gigabyte product: Z97X-UD3H serial: N/A
           Mobo: Gigabyte model: Z97X-UD3H-CF v: x.x serial: N/A
           UEFI: American Megatrends v: F9 date: 09/18/2015
CPU:       Quad core Intel Core i5-4690K (-MCP-) 
           arch: Haswell rev.3 cache: 6144 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 28001
           clock speeds: max: 4300 MHz 1: 1358 MHz 2: 1112 MHz 3: 1295 MHz
           4: 1263 MHz
Graphics:  Card-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
           bus-ID: 00:02.0
           Card-2: NVIDIA GP102 [GeForce GTX 1080 Ti] bus-ID: 01:00.0
           Display Server: x11 (X.Org 1.19.6 )
           drivers: nvidia (unloaded: modesetting,fbdev,vesa,nouveau)
           Resolution: 2560x1440@59.95hz, 1920x1080@60.00hz
           OpenGL: renderer: GeForce GTX 1080 Ti/PCIe/SSE2
           version: 4.6.0 NVIDIA 396.54 Direct Render: Yes
Audio:     Card-1 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:03.0
           Card-2 Intel 9 Series Family HD Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Card-3 NVIDIA GP102 HDMI Audio Controller
           driver: snd_hda_intel bus-ID: 01:00.1
           Sound: Advanced Linux Sound Architecture v: k4.15.0-34-generic
Network:   Card-1: Intel Ethernet Connection I217-V
           driver: e1000e v: 3.2.6-k port: f080 bus-ID: 00:19.0
           IF: eno1 state: up speed: 100 Mbps duplex: full mac: <filter>
           Card-2: Qualcomm Atheros AR93xx Wireless Network Adapter
           driver: ath9k bus-ID: 05:00.0
           IF: wlp5s0 state: down mac: <filter>
Drives:    HDD Total Size: 1512.3GB (1.3% used)
           ID-1: /dev/sdb model: SanDisk_SDSSDH35 size: 512.1GB
           ID-2: /dev/sda model: ST1000DM003 size: 1000.2GB
Partition: ID-1: / size: 20G used: 7.2G (39%) fs: ext4 dev: /dev/sdb5
           ID-2: /home size: 200G used: 8.0G (5%) fs: ext4 dev: /dev/sdb7
           ID-3: swap-1 size: 3.18GB used: 0.00GB (0%)
           fs: swap dev: /dev/sdb6
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 29.8C mobo: 27.8C gpu: 0.0:36C
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 213 Uptime: 4 min Memory: 1409.2/15902.1MB
           Init: systemd runlevel: 5 Gcc sys: 7.3.0
           Client: Shell (bash 4.4.191) inxi: 2.3.56 

Thanks

[melodylane]

I fixed this with the following steps:

1. Open `/etc/default/grub`
2. Change this line to

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GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nouveau.modeset=0 nvidia-drm.modeset=1"

3. Save and run `update-grub`
4. Reboot

The important part of the string to add is

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nouveau.modeset=0 nvidia-drm.modeset=1