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<body><span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97178">bug 97178</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">i915 platform</td>
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<td>BSW/CHT
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97178#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97178">bug 97178</a>
from <span class="vcard"><a class="email" href="mailto:yann.argotti@intel.com" title="yann <yann.argotti@intel.com>"> <span class="fn">yann</span></a>
</span></b>
<pre>I guess that following change in drivers/gpu/drm/i915/intel_panel.c, line 1748
on top of kernel 4.6.x (check
<a href="https://lists.freedesktop.org/archives/intel-gfx/2016-February/087151.html">https://lists.freedesktop.org/archives/intel-gfx/2016-February/087151.html</a>)
- if (dev_priv->vbt.has_mipi) {
+ if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) {
should solve your issue.
FYI this is not part of 4.6.x kernel but part of 4.7 or our drm-intel-nightly.
So either you upgrade to a more recent kernel or apply that change</pre>
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