[PATCH i-g-t v1] tests/kms_force_connector_basic: fix force-connector-state for HDMI 2.1

[Sowmiya S <sowmiya.s@intel.com>]

Remove igt_display_reset() before igt_display_commit() in
force_connector_state(). The reset disables all CRTCs, causing the
display engine to transition to a lower DC state (DC6/DC9), which
cuts power to the HDMI PHY. HDMI 2.1 monitors de-assert HPD when
the PHY loses power, so FORCE_CONNECTOR_UNSPECIFIED reads HPD=LOW
and reports disconnected, failing the state-restore assertion.

Re-probe the connector after the commit to capture its accurate
natural state as the baseline for the FORCE_CONNECTOR_UNSPECIFIED
check.

Signed-off-by: Sowmiya S <sowmiya.s@intel.com>
---
 tests/kms_force_connector_basic.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tests/kms_force_connector_basic.c b/tests/kms_force_connector_basic.c
index 4ea6b0e8c..ec8b0e25f 100644
--- a/tests/kms_force_connector_basic.c
+++ b/tests/kms_force_connector_basic.c
@@ -181,10 +181,14 @@ static void force_connector_state(int drm_fd, drmModeConnectorPtr connector)
 
 	igt_display_require(&display, drm_fd);
 
-	/* Reset display before attempt to use it. */
-	igt_display_reset(&display);
 	igt_display_commit(&display);
 
+	/* Re-probe to get the connector's original state with HPD accurate. */
+	temp = drmModeGetConnector(drm_fd, connector->connector_id);
+	igt_require(temp);
+	connector->connection = temp->connection;
+	drmModeFreeConnector(temp);
+
 	/* Force the connector on and check the reported values. */
 	kmstest_force_connector(drm_fd, connector, FORCE_CONNECTOR_ON);
 	temp = drmModeGetConnectorCurrent(drm_fd,
-- 
2.43.0