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-rw-r--r--drivers/gpu/drm/i915/intel_display.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b096c0e74cc..2de874c34c2 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8832,7 +8832,8 @@ static void quirk_ssc_force_disable(struct drm_device *dev)
}
/*
- * A machine may need to invert the panel backlight brightness value
+ * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
+ * brightness value
*/
static void quirk_invert_brightness(struct drm_device *dev)
{
@@ -8874,6 +8875,9 @@ struct intel_quirk intel_quirks[] = {
/* Sony Vaio Y cannot use SSC on LVDS */
{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
+
+ /* Acer Aspire 5734Z must invert backlight brightness */
+ { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
};
static void intel_init_quirks(struct drm_device *dev)