Tensorbook fails to detect external monitors

post by larrykirchner on Jan 5, 2019

I’m trying to connect a second display to my tensorbook. So far I cannot get it to even detect any connected second display exists.

Any end-to-end guide that covers monitors, input types, etc.?

Below are details on laptop and the two monitors I’ve tried, plus steps I tried to get the laptop to detect each monitor.

LAPTOP: tensorbook laptop

• OS: Ubuntu 18.04.1 LTS
• Graphics: Intel® HD Graphics (Coffeelake 3x8 GT2) (from Settings/About)
• GPU: nvidia GeForce GTX 1070

MONITOR: ViewSonic VX2450WM-LED

STEPS:

• connected monitor DVI => MiniDisplay Port on laptop (tried both)
• open Settings/Devices/Displays

EXPECTED:

• should detect display

OBSERVED:

• displays on basic options about ‘Built in Display’

STEPS:

• from terminal: nvidia settings

EXPECTED:

• launch some app to configure second display

OBSERVED:

• ERROR: Unable to find display on any available system

MONITOR: HP2311x

STEPS:

• connected monitor HDMI => HDMI Port on laptop
• open Settings/Devices/Displays

EXPECTED:

• should detect display

OBSERVED:

• displays on basic options about ‘Built in Display’

3.1k views

post by sabalaba on Jan 21, 2019

I’ve seen this occur before. I just restart the laptop if I’m having issues and it fixes it. I plug in using the HDMI cable (not the mini display port). Can you try a monitor with DVI=>HDMI?