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<body><span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [945gm] no intel_backlight on macbook 2,1 with kernel 3.15"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81438">bug 81438</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>NEEDINFO
</td>
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<td style="text-align:right;">Assignee</td>
<td>rodrigo.vivi@gmail.com
</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<td style="text-align:right;">Summary</td>
<td>no intel_backlight on macbook 2,1 with kernel 3.15
</td>
<td>[945gm] no intel_backlight on macbook 2,1 with kernel 3.15
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [945gm] no intel_backlight on macbook 2,1 with kernel 3.15"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81438#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [945gm] no intel_backlight on macbook 2,1 with kernel 3.15"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81438">bug 81438</a>
from <span class="vcard"><a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> <span class="fn">Jani Nikula</span></a>
</span></b>
<pre>Please try reverting:
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
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.</pre>
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