HDMI OPEN Failure

Application Scenario

• Service scenario: display over the HDMI
• Applicable processor: Atlas 200I/500 A2 inference product
• Processor forms: EP and RC

Symptom

When the HDMI display is enabled, the following user-mode error indicating the HDMI OPEN failure is printed in the log:

[ERROR] DSS(4808,vo_test_nvr_hdmi_hi_test):1970-01-01-08:31:51.173.346 [mpi_hdmi_com.c:338][lib_hdmi][mpi_hdmi_com_open]:HDMI device not init

Possible Cause

hi_mpi_hdmi_init is not called before calling hi_mpi_hdmi_open.

Solution

1. Check the calling sequence of hi_mpi_hdmi_open and hi_mpi_hdmi_init in the test case and correct the test case.
2. Execute the HDMI display test case again.