HDMI vs DisplayPort Issues

Users troubleshoot monitor connection problems like flickering, EDID failures, and resolution glitches, frequently recommending switching from HDMI to DisplayPort cables or adapters for reliability.

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Keywords

SPI U38118DW PC DRM HDCP EDID LG MST LVDS I2C hdmi displayport usb monitor dp display cable dell monitors cables

Sample Comments

tmikaeld • Feb 13, 2023 • View on HN

Maybe it's a limitation of Displayport?

TazeTSchnitzel • Sep 10, 2015 • View on HN

I've wondered if it's a DisplayPort bandwidth thing.

tuananh • Jan 31, 2020 • View on HN

are you using hdmi by any chance? if so, switch to display port. make sure it's dp 1.4

Rebelgecko • Dec 19, 2021 • View on HN

I have a similar setup, but unfortunately I'm stuck with it because my Acer monitor doesn't support the necessary DDC commands

BlueTemplar • Dec 23, 2022 • View on HN

Let me guess : issues coming from recent monitors expecting DRM ?

apta • Dec 16, 2020 • View on HN

Are you using and HDMI cable? I found it solved the issue when I switched to DisplayPort.

shmerl • Aug 30, 2023 • View on HN

What's with LG in general? It seems they often have problems with EDIDs.

p_l • Jan 27, 2020 • View on HN

That's the magic of displayport for you. It won't do that on HDMI, except with active converted from DP to HDMI :)

nextweek2 • Feb 19, 2019 • View on HN

The fix for me was to use DisplayPort, if HDMI was in the mix it would have the reliability of a 90s monitor.

bouke • Apr 23, 2020 • View on HN

Someone posted somewhere that switching to an usb-c monitor fixed their issue (instead of usb-c to hdmi adapter). Anyone here have some experience with this?