If an external monitor does not work with the HP Spectre x360 14, connect it through a USB-C or Thunderbolt port that supports video, with a cable rated for it, and press Windows plus P to choose Duplicate or Extend. Check Settings, System, Display, Detect, and update the graphics driver through HP Support Assistant. A USB-C to HDMI adapter must support the resolution; for 4K at 60 Hz you need HDMI 2.0 or DisplayPort. If the monitor works on another computer, the cable and monitor are fine and the Spectre's port or driver is the issue.
Differential
Likely causes of “HP laptops external monitor is not detected or uses the wrong resolution”, and how to tell them apart
- 1
The wrong port or cable
What separates it The monitor shows no signal
How to confirm Use a video-capable USB-C or Thunderbolt port and cable
- 2
The wrong projection mode
What separates it Only one screen shows
How to confirm Press Windows plus P and choose Extend
- 3
A driver problem
What separates it Resolution is wrong or the monitor is missing
How to confirm Update the graphics driver
- 4
An adapter limit
What separates it 4K stays at 30 Hz
How to confirm Use an adapter that supports 4K at 60 Hz
- 5
A dock firmware issue
What separates it Works directly but not through a dock
How to confirm Update the dock
Before you touch a setting
Record this first — changing settings destroys the evidence
- The port, cable and monitor
- Whether it works on another computer
- The graphics driver version
Try in this order
0 of 6 completedUse a video port
ReversibleConnect to a Thunderbolt or USB-C port that supports video.
Choose the mode
ReversiblePress Windows plus P.
Detect displays
ReversibleUse Settings, System, Display, Detect.
Update the driver
ReversibleUse HP Support Assistant.
Test another cable
ReversibleTry a known-good cable or adapter.
Test with a different monitor
ReversibleTry another monitor to see whether the fault is the Spectre or the screen.
Model-specific
What is true of this model and not of its siblings
- Ports
- Thunderbolt ports carry video, data and charging.
- Thunderbolt
- Thunderbolt ports carry video, data and power.
- Other models this page answers
- These steps also fit models Envy x360 14-fa, OmniBook Ultra 14, G11, G11, Victus 16-r, OMEN Transcend 14.
Stop boundary
When this stops being a self-service repair
- !If no port outputs video, contact HP
Evidence ledger
Sources behind this answer
Disconnecting accessories, cable checks, another system, the Extend option and resetting the graphics driver.
USB-C ports, video output and docks.
HP's device-agnostic multi-monitor setup and detection article, cited by title.
The HP Spectre premium line.
The HP Envy line.
The HP Pavilion line.
The HP EliteBook business line.
The HP OMEN gaming line.
Exact questions
Common questions
Why is my monitor stuck at 30 Hz?+
The adapter or cable may support only HDMI 1.4. Use HDMI 2.0 or DisplayPort for 4K at 60 Hz.
Can I connect two monitors to the Spectre?+
Many configurations support two, using Thunderbolt and a dock, but check your model's specifications.
Why does the monitor flicker?+
A poor cable or refresh rate mismatch can cause it. Try another cable and a standard refresh rate.
Does the Spectre have HDMI?+
Check the ports on your model; many use USB-C with an adapter.
How do I extend my desktop to a second monitor?+
Press Windows plus P and choose Extend, then arrange the displays in Settings, System, Display.
Why is my external monitor's resolution wrong?+
Windows may pick the wrong mode. Choose the monitor's native resolution in Display settings.
Can the Spectre drive a 4K monitor?+
Yes through a Thunderbolt or USB-C video output with a suitable cable; 4K at 60 Hz needs HDMI 2.0 or DisplayPort.
Does a dock help with two monitors?+
A Thunderbolt dock can drive two displays on many configurations, subject to the dock's specifications.
Why does my second monitor show no signal after the Spectre wakes?+
The connection may drop during sleep. Reseat the cable or press Windows plus Ctrl plus Shift plus B to reset the graphics driver.
Can I use the Spectre's screen and an external monitor together?+
Yes. Extend the desktop with Windows plus P and arrange the screens in Display settings.