https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 24 Apr 2026 20:27:20 +0000 Sun, 20 Sep 2020 19:13:56 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=16297 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=16297&PID=79678&title=fatal1ty-b450-gamingitx-ac-hdmi-dp-not-working#79678 Author: mvitorino
Subject: 16297
Posted: 20 Sep 2020 at 7:13pm


Hi,

Have an ITX Fatal1ty B450 with a 3400G (no dedicated GPU) that has been working fine for 9 months, but since yesterday both HDMI and Display Port stopped showing image.

Have tried:
- 4 x different HDMI cables
- 1 x single DP cable
- 3 hdmi ports on 1 x 75" LG TV (that has been its output for the last 5mo) | have confirmed TV ports are working with other devices
- 1 x 28" ASUS monitor, with both hdmi and DP cables (monitor ports also working with other devices)

No image during boot or after.
I get a black vnc session when no display attached. With a display attached, I can vnc fine and everything else appears to be working correctly (so it does appear to detect the presence of a display).

Display keeps switching every few seconds between a black screen and "no signal detected".

Any help would be appreciated?]]> Sun, 20 Sep 2020 19:13:56 +0000 https://forum.asrock.com/forum_posts.asp?TID=16297&PID=79678&title=fatal1ty-b450-gamingitx-ac-hdmi-dp-not-working#79678