sony-vaio-z-series team mailing list archive

[Mario Di Raimondo <mario.diraimondo@xxxxxxxxx>]

2013/4/23 Craig Blackie <craig@xxxxxxxxxxxxxxxxx>

> Why did you remove bumblebee?
>

As I said I'm actually not interested in using nvidia card: I care only of
battery autonomy. sony-laptop-zseries module can disable nvidia card using
stamina_speed parameter (I should be possible even without using
acpi_osi='' kernel parameter...).

In the future, I'll test bumblebee but not now. I want to restore the
low-power profile of my laptop.

I've just discovered that the suggested changes in sony-acpid source code
was necessary because (on my tests) I was using 'acpi_backlight=vendor'
kernel parameter. Removing it the acpi backlight device appears and
sony-acpid works out-of-the-box. I keept the change on the maxium
brightness (static int const ACPI_MAX_BRGT = 8;), indeed the suggested
maximum (15) is an invalid value on my box.

Mario