Messages in this thread | | | Date | Wed, 5 Oct 2011 12:59:40 -0700 (PDT) | From | Alex Davis <> | Subject | Re: Regression: i915 blank issue on kernel 3.1.0-rc3 |
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.From: Keith Packard <keithp@keithp.com> >> The following patch fixed my backlight issues: >> >> diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c >> index a9e0c7b..6f56676 100644 >> --- a/drivers/gpu/drm/i915/intel_panel.c >> +++ b/drivers/gpu/drm/i915/intel_panel.c >> @@ -262,8 +262,6 @@ void intel_panel_disable_backlight(struct drm_device *dev) >> dev_priv->backlight_level = intel_panel_get_backlight(dev); >> dev_priv->backlight_enabled = false; >> } >> - >> - intel_panel_set_backlight(dev, 0); >> } >> >> void intel_panel_enable_backlight(struct drm_device *dev) >> >> I've been using it since yesterday morning with no issues. > >Matthew -- if we cannot resolve this backlight issue, we're going to >need to disable the new backlight code for 3.1. Do you want to try and >fix it? Or should we bail for now?
By 'disable', do you mean revert? If so, I would the like chance to submit a patch that adds a boot parameter for the driver to disable the backlight by default, e.g: i915_disable_bl. Once the issues are sorted, the parameter could be removed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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