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Commit bcd5023c authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/i915: disable opregion lid detection for now. 



At least on my HP 2540p this is wrong at bootup, fine
at any other time once a lid event has occured. This is due to
_REG vs _INI ordering in the ACPI tables.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 34db18ab

drivers/gpu/drm/i915/intel_panel.c

+6 −0
Original line number Diff line number Diff line
@@ -248,18 +248,24 @@ void intel_panel_setup_backlight(struct drm_device *dev) 
enum drm_connector_status

intel_panel_detect(struct drm_device *dev)

{

#if 0

	struct drm_i915_private *dev_priv = dev->dev_private;

#endif



	if (i915_panel_ignore_lid)

		return i915_panel_ignore_lid > 0 ?

			connector_status_connected :

			connector_status_disconnected;



	/* opregion lid state on HP 2540p is wrong at boot up,

	 * appears to be either the BIOS or Linux ACPI fault */

#if 0

	/* Assume that the BIOS does not lie through the OpRegion... */

	if (dev_priv->opregion.lid_state)

		return ioread32(dev_priv->opregion.lid_state) & 0x1 ?

			connector_status_connected :

			connector_status_disconnected;

#endif



	return connector_status_unknown;

}