Device Family: Intel® Arria® 10, Intel® Stratix® 10

Intel Software: Quartus Prime Pro, Quartus Prime Standard

Type: Errata

Area: Intellectual Property


Last Modified: November 06, 2019
Version Found: v17.1 Update 1
Version Fixed: v19.1
Bug ID: 1507347789
IP: DisplayPort

Why does the DisplayPort Intel® FPGA Receiver IP Core with "Enable GPU Control" option unchecked fail to acknowledge I2C-over-AUX requests coming from Host DisplayPort Transmitter ?

Description

Due to a problem in the DisplayPort Intel® FPGA Receiver IP core prior to Intel® Quartus® Prime Pro Edition version 18.1 software and prior to Intel® Quartus® Prime Standard Edition version 19.1 software, the DisplayPort Intel® FPGA Receiver IP core may not acknowledge I2C-over-AUX requests coming from Host DisplayPort Transmitter which can cause system black screen scenario.

This problem doesn't affect the DisplayPort Intel® FPGA Receiver IP core with "Enable GPU Control" option checked.

Workaround/Fix

To work around this problem, turn on the "Enable GPU Control" option in the DisplayPort Intel® FPGA Receiver IP Core and use DisplayPort Intel® FPGA Nios II API to manage the AUX channel handshaking.

This problem is fixed beginning with Intel® Quartus® Prime Standard Edition version 19.1 software and Intel® Quartus® Prime Pro Edition version 18.1 software.