Intel Motherboards - H170M Pro dual monitor problems

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H170M Pro dual monitor problems

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3358
Printed Date: 20 Jul 2025 at 11:52am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: H170M Pro dual monitor problems

Posted By: rrck
Subject: H170M Pro dual monitor problems
Date Posted: 02 Sep 2016 at 2:37am

I'm running the latest Ubuntu on the H170M Pro with two monitors, connected to DVI-D and HDMI. The second monitor (HDMI) is not working, but it was working with the old motherboard.

xrandr shows this:

Screen 0: minimum 8 x 8, current 1600 x 1200, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 connected primary 1600x1200+0+0 (normal left inverted right x axis y axis) 408mm x 306mm
   1600x1200     60.00*+
   1280x1024     75.02    60.02
   1280x960      60.00
   1152x864      75.00
   1024x768      75.08    70.07    60.00
   832x624       74.55
   800x600       72.19    75.00    60.32    56.25
   640x480       75.00    72.81    66.67    60.00
   720x400       70.08
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Why is the HDMI connector not working?