Kali Brightness Problem After Reboot (Solved For You)
Apologize for my english. Get low brightness after each reboot? Dont worry this solution will help u.
Let me explain step by step.
1-Full to brightness firstly.
2-Open it
gedit /etc/default/grub
then find this line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" and change to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
save it.
3-Type "update-grub" in terminal (without quotes)
4-Reboot your system. U will see low brightness again but here is real solution.
5-Rollback what u did. Change back to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
6-Type "update-grub" in terminal AGAIN.
7-Reboot and Done.