Gary, so you did the test in the "/sys/class/backlight/acpi_video0/" directory?
If that's the case, that means the acpi driver works for you, you don't need any patch for the kernel.
Did you add any parameter to the kernel command line?
"cat /proc/cmdline" and paste the result.
Just use the kernel you like.
Gary, so you did the test in the "/sys/class/ backlight/ acpi_video0/ " directory?
If that's the case, that means the acpi driver works for you, you don't need any patch for the kernel.
Did you add any parameter to the kernel command line?
"cat /proc/cmdline" and paste the result.
Just use the kernel you like.