Ubuntu
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  1. Bug #1197482
  2. Comment #35

Comment 35 for bug 1197482

Revision history for this message
Sean V Kelley (seanvk) wrote : Re: 8086:0a26 [MacBook Air 6,2] After suspend/resume, screen is dark for brighness levels below 13 with i915 driver

There is a work around for the backlight issue.

reference: https://bugs.freedesktop.org/show_bug.cgi?id=67454

>
> To get it running you need to download and build the driver:
>
> # git clone https://github.com/patjak/mba6x_bl
> # cd mba6x_bl/ && make && make install
>
> Make sure the module is loaded at boot time. E.g add "mba6x_bl" to
> /etc/modules
> You also need to configure i915 to hand over the backlight control to
> mba6x_bl. I added this to my /etc/X11/xorg.conf:
>
> Section "Device"
> Identifier "Intel Graphics"
> Driver "intel"
> Option "Backlight" "mba6x_backlight"
> EndSection
>
> Now reboot and you should have working brightness even after suspend/resume.
> Unloading the module (modprobe -r mba6x_bl) will restore the backlight to
> whatever state we had when loading it.