[Bug 81438] [945gm] no intel_backlight on macbook 2,1 with kernel 3.15

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81438

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
           Assignee|rodrigo.vivi at gmail.com      |intel-gfx-bugs at lists.freede
                   |                            |sktop.org
            Summary|no intel_backlight on       |[945gm] no intel_backlight
                   |macbook 2,1 with kernel     |on macbook 2,1 with kernel
                   |3.15                        |3.15

--- Comment #2 from Jani Nikula <jani.nikula at intel.com> ---
Please try reverting:
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Wed Apr 9 11:31:37 2014 +0300

    drm/i915: do not setup backlight if not available according to VBT

and see if it helps.

Please attach /sys/kernel/debug/dri/0/i915_opregion

Please attach dmesg with drm.debug=0xe module parameter.

Side note, the attached dmesg has a gpu hang in it. You could file a separate
bug on that.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140908/ef6f80b6/attachment.html>