This is an update to my post No.93... Not a single time i have have faced any problem with the brigtness button : after SPARX No.17 comment ( sorry for saying that it was Marwans)
This bug is FIXED for me by adding these kernel options:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force acpi_backlight=vendor"
This is an update to my post No.93... Not a single time i have have faced any problem with the brigtness button :
after SPARX No.17 comment ( sorry for saying that it was Marwans)
This bug is FIXED for me by adding these kernel options:
GRUB_CMDLINE_ LINUX_DEFAULT= "quiet splash pcie_aspm=force acpi_backlight= vendor"