sudo gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
GRUB_CMDLINE_LINUX=""
GRUB_CMDLINE_LINUX="reboot=efi"
GRUB_CMDLINE_LINUX="shutdown=efi"
GRUB_CMDLINE_LINUX="shutdown=bios"
sudo update-grubsudo update-initramfs -u
sudo apt-get install gnome-panel
sudo apt-get install gnome-shell