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Recently got a refurb Dell G3 3779 17″ with i7-8750H 6 core, Nvidia GTX 1050 Ti GPU, and 32GB RAM. Perf is awesome, passmark is over 12000. Running Ubuntu 18.04.2 but had trouble with jerky performance and stability issues, until I found this page:

https://erdnaxe.github.io/dell-g3-17-ubuntu/

Steps:

• install Ubuntu 18.04.2 from .iso
• sudo apt update && sudo apt upgrade
• sudo nano /etc/default/grub.d/Linux-Dell-Video.cfg:
GRUB_CMDLINE_LINUX=$(echo $GRUB_CMDLINE_LINUX acpi_osi=Linux-Dell-Video)
• sudo nano /etc/default/grub.d/Nvidia-DRM.cfg
GRUB_CMDLINE_LINUX=$(echo $GRUB_CMDLINE_LINUX nvidia-drm.modeset=1)
• sudo update-grub
• sudo apt install r8168-dkms
• sudo apt install nvidia-430
• sudo dpkg -i tlp-sensible_1.1_all.deb
• sudo dpkg -i modprobe-blacklist-psmouse_2_all.deb
• apt install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
• sudo reboot now