Messages in this thread | | | Date | Wed, 21 Mar 2012 08:39:02 -0400 | From | Shea Levy <> | Subject | Re: [PATCH v4 0/2] Add driver for Apple gmux device |
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Hi Seth,
On 03/16/2012 03:41 PM, Seth Forshee wrote: > Apple laptops with hybrid graphics have a device named gmux that is used > for switching between GPUs and backlight control. On many models this is > the only reliable method for controlling the backlight. > > This series adds initial support for the gmux device, along with > anciallary support for disabling apple_bl when the gmux device is > detected. Initially only backlight control is supported. > >
I've done some basic testing on my MBP 5,3 (just setting a few brightness levels, nothing fancy), and it all works, so feel free to add my basic
Tested-by: Shea Levy <shea@shealevy.com>
if you wish. Please let me know if you need testing for future gmux features.
A few questions: * I'm using nouveau, and with the gmux I have both gmux_backlight and nv_backlight (which never worked) in /sys/class/backlight, is this expected? * Is there anything I can do to test the sysfs backlight interface besides setting the levels? * Besides the sysfs backlight interface, are there any other userspace-visible changes your driver makes that I should test?
Cheers, Shea Levy
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