# 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?