AR# 70152

HDMI Receiver Subsystem v2.0, Software Driver v3.2 - Why do I have problems detecting correct video format when switching to 3840x2160 64:27 4:2:0?

Description

3840x2160p60 (64:27 formats) YUV420, can sometimes be detected as follows:


 

It can occur under the following conditions:

  • When switching from 3840x2160p60 (64:27 formats) RGB to YUV 420
  • When switching from 3840x2160p60 YUV420 from 64:27 formats to 16:9 formats
  • When the format is 3840x2160p60 (64:27 formats) YUV420, but you plug/unplug the TX cable.

Normally it can be reproduced within 20 switching tests.

Solution

This is a known issue in the current HDMI Receiver Subsystem IP.

  • Vivado 2017.2 - Users can download the HDMI Receiver Subsystem Software Driver fix from (Xilinx Answer 70096) to work around this issue.
  • Vivado 2017.3 - This issue is resolved in the HDMI Receiver Subsystem Software Driver in Vivado 2017.3 and later

Users should update to the latest version of the IP.

Linked Answer Records

Master Answer Records

AR# 70152
Date 07/05/2018
Status Active
Type General Article
IP