[Bug 76276] Backlight control broken on Dell XPS13 w/ kernel 3.14-rc7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76276

--- Comment #15 from Jani Nikula <jani.nikula at intel.com> ---
Please do all of the above, and additionally try this hack:

diff --git a/drivers/gpu/drm/i915/intel_panel.c
b/drivers/gpu/drm/i915/intel_panel.c
index cb058408c70e..a07c8fa7aed0 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1065,6 +1065,8 @@ int intel_panel_setup_backlight(struct drm_connector
*connector)
     unsigned long flags;
     int ret;

+    return 0;
+
     /* set level and max in panel struct */
     spin_lock_irqsave(&dev_priv->backlight_lock, flags);
     ret = dev_priv->display.setup_backlight(intel_connector);

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