Why does the Display Port channel take a long time for successful Link Training?

Description

Due to a problem with the Native PHY IP core, Display Port channels take a long time before successfully link training.

This problem is due to the Intel® Quartus® Prime software applying incorrect RX PCS settings to the Native PHY IP core, causing unsuccessful word alignment.

Resolution

A patch is available to fix this problem for the Intel® Quartus® Prime Pro and Standard version 16.1.2.  Download and install Patch 2.29 from the appropriate link below.  

Patch 2.29 for Linux : quartus-16.1.2-2.29-linux.run

Patch 2.29 for Windows :  quartus-16.1.2-2.29-windows.exe

Installation instructions  : quartus-16.1.2-2.29-readme.txt

This problem is fixed starting in Quartus Prime software version 17.1.1 and later.