sudo vim /etc/default/grub
GRUB_CMDLINE_LINUX="acpi_osi='Linux'"
update-grub
sudo vim /etc/default/grub
GRUB_CMDLINE_LINUX="acpi_osi='Linux'"
update-grub
sudo vim /etc/default/grub GRUB_CMDLINE_LINUX="acpi_osi='Linux'" update-grub
sudo vim /etc/default/grub GRUB_CMDLINE_LINUX="acpi_osi='Linux'" update-grub