Bug#725906: linux-image-3.10-3-amd64: latency when increasing or decreasing brightness

[Rik Theys <Rik.Theys@esat.kuleuven.be>]

Hi,

I've experienced similar behaviour since the 3.9 kernels on my Dell Latitude
6530

Adding the following kernel parameter to the grub boot line has
dramatically reduced the latency for me:

acpi_backlight=vendor

It might also make a difference for you.

Regards,

Rik