diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 9 |
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"); |