1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 522ff05e3789..42839fc73499 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3453,6 +3453,11 @@ static void cpt_init_clock_gating(struct drm_device *dev)
         I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
         I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) |
                    DPLS_EDP_PPS_FIX_DIS);
+        /* The below fixes the weird display corruption, a few pixels shifted
+         * downward, on (only) LVDS of some HP laptops with IVY.
+         */
+        for_each_pipe(pipe)
+                I915_WRITE(TRANS_CHICKEN2(pipe), TRANS_CHICKEN2_TIMING_OVERRIDE);
         /* WADP0ClockGatingDisable */
         for_each_pipe(pipe) {
                 I915_WRITE(TRANS_CHICKEN1(pipe),