@re_roy The firmware defaults to HDMI as the main screen and mipi as the secondary screen. When rotating, the secondary screen is only rotated in a zooming way. However, your requirement environment needs to change the mipi to the main screen, so you need to make the following modifications:
--- a/kedge2/kedge2.mk
+++ b/kedge2/kedge2.mk
@@ -48,12 +48,12 @@ PRODUCT_PROPERTY_OVERRIDES += ro.sf.lcd_density=240
PRODUCT_PROPERTY_OVERRIDES += ro.wifi.sleep.power.down=true
PRODUCT_PROPERTY_OVERRIDES += persist.wifi.sleep.delay.ms=0
PRODUCT_PROPERTY_OVERRIDES += persist.bt.power.down=true
-PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.primary=HDMI-A,DP
-PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.extend=DSI
+PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.primary=DSI
+PRODUCT_PROPERTY_OVERRIDES += vendor.hwc.device.extend=HDMI-A,DP