1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f3133d81fb9d..016e7bc6af0a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4139,9 +4139,16 @@ static uint8_t intel_dp_autotest_edid(struct intel_dp *intel_dp)
                                       intel_dp->aux.i2c_defer_count);
                 intel_dp->compliance_test_data = INTEL_DP_RESOLUTION_FAILSAFE;
         } else {
+                struct edid *block = intel_connector->detect_edid;
+
+                /* We have to write the checksum
+                 * of the last block read
+                 */
+                block += intel_connector->detect_edid->extensions;
+
                 if (!drm_dp_dpcd_write(&intel_dp->aux,
                                         DP_TEST_EDID_CHECKSUM,
-                                        &intel_connector->detect_edid->checksum,
+                                        &block->checksum,
                                         1))
                         DRM_DEBUG_KMS("Failed to write EDID checksum\n");