try the whole string:
acpi_osi=Linux acpi_backlight=vendor dell_laptop.backlight=0
this worked on my Dell Studio 1558 with 3.8 kernels
Alex
On 13-04-17 09:27 PM, Luciano Dato wrote: > Oh I forgot ls /sys/class/backlight dell_backlight intel_backlight and > uname -r 3.8.0-18-lowlatency as I've said before >
try the whole string:
acpi_osi=Linux acpi_backlight= vendor dell_laptop. backlight= 0
this worked on my Dell Studio 1558 with 3.8 kernels
Alex
On 13-04-17 09:27 PM, Luciano Dato wrote: backlight dell_backlight intel_backlight and
> Oh I forgot ls /sys/class/
> uname -r 3.8.0-18-lowlatency as I've said before
>