How to configure DisplayPort TX to support BT.2020 colorimetry - How to configure DisplayPort TX to support BT.2020 colorimetry Hi everyone, we are not able to configure DisplayPort TX to use BT.2020 colorimetry. Let's say we want to transmit YCbCr 4:2:2, 10 bit, limited range, BT.2020. According to the DisplayPort 1.4 specification we set MISC0 and MISC1: DPTX0_MSA_MISC1 bit 6 = 1 (Use VSC SDP) MISC0 should be ignored now, but we still set it, e.g: DPTX0_MSA_MISC0: bits 7-5: 010 (10 bit) bit 4: 1 bit 3: 0 bit2-1: 01 (4:2:2) DPTX0_MSA_COLOR: bit 13: 1 (use VSC SDP) bit 12: 1 (CEA range) bits 11-8: 0111 (BT.2020 YCbCr) bits 7-4: 0010 (YCbCr 4:2:2) bits 2-0: 010 (10 bits) we also call B itec function: btc_dptx_set_color_space(0 /*instance*/, 2 /*YCbCr 422*/, 2 /*10bits*/, 1 /*limited range*/ , 7 /*bt2020*/, 1 /*use VSC SDP*/); Basic colorimetries (BT609 and BT709) and color spaces (RGB, YCbCr 422/444) works well, when we use MISC0 instead od VSC SDP. Using Quartus Pro 19.1 Can you please advice how to put BT2020 into operation? Thank you, Petr Replies: Re: How to configure DisplayPort TX to support BT.2020 colorimetry HI, You are right in the sense that BT.2020 should be enabled via VSC SDP but I don't see you enable "secondary data channel" in your Intel DP Tx IP. This could be the problem as you are transferring secondary data packet (SDP) here Below is what I found out from DP rev1.4 spec Pre-requisite Ensure DP sink EDID support 3D Stereo in-band signaling Ensure DP sink enable “VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED”, DPCD address 0x2210h (bit 3 = 1) Enable Intel DP Tx “secondary data channel” Then to enable/configure BT.2020 support DP Tx set MSA (MISC1, bit6 =1) to use VSC SDP Configured YCbCr 422 BT.2020 setting via VSC SDP, payload data byte (DB16) Thanks. Regards, dlim