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- HP Community
- Notebooks
- Notebook Video, Display and Touch
- USB display turns off

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11-24-2018 05:30 AM
Hello,
I have connected a monitor to my HP Pavilion Power - 15-cb030nd using a USB-C - HDMI adapter.
It works fine and suddenly the screen goes blanc. When this happens, there is no way to get it to work again.
My current setup is the laptop, 1 monitor connected to the HDMI of the laptop and one monitor connected to the laptop's USB-C, using an adapter.
This is the adapter: Trust USB-C to HDMI Converter
I'm running Windows 10.
Roccat kone XTD wired mouse
Wireless Logitec keyboard
What I've tried to do:
Connect different monitors while it wasn't working.
It seems like the monitors know there is something attached to them, because when I connect them they stop showing the "Check signal cable" message. The monitors go in stand-by after a while.
So what is blocking the signal?
I've done some updates:
Update NVidia, Intel display drivers.
Update BIOS
Update chipset driver
Update Intel Dynamic Platform and Thermal Framework Client Driver - Kaby Lake
Before I started all these updates, the monitor wasn't working (yes it was connected..)
When the bios was updated, after several automatic reboots, the screen turned on again and I thought i fixed the problem.
But when I started the update of the chipset driver, the screen went blanc again (and still is).
Thanks!
11-26-2018 01:45 PM
Thank you for showing your interest in HP Support Forums. It is a great place to find the help you need, from other users, HP experts, and other support personnel. I see from your post you need assistance related to Display. Don't worry I'll be glad to help you.
To provide you with an accurate solution, I'll need a few more details:
Have you recently made any software or hardware changes on the PC?
After reviewing your post thoroughly, I see that you have exhausted all possible troubleshooting steps and unfortunately nothing has helped to resolve this issue.
In this scenario, the last resort would be to perform a system reset on the PC. For more details, please follow this link: HP PCs - Resetting Your Computer (Windows 10)
Please let me know if this resolves the issue, or if you require further assistance!
Eagerly waiting for your response!
that said, If the information I've provided was helpful,
give us some reinforcement by clicking the solution and kudos buttons,
that'll help us and others see that we've got the answers!
Good Luck.
Jeet_Singh
I am an HP Employee
11-27-2018 11:38 AM
It looks like you were interacting with @Jeet_singh, but he is out for the day & I'll be glad to help you out.
I'm Raj1788 & I'm at your service.
Appreciate all your time and efforts.
I suggest you try a different USB-C to HDMI Converter and try connecting to the monitor and that should be working fine.
Keep me posted, how it goes!
If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!
Have a great day!
Cheers:)
Raj1788
I am an HP Employee
11-28-2018 02:38 AM
Hi Raj,
Thank you for your reply.
I think the USB-C to HDMI adapter works fine and that it's more a settings/driver/laptop problem.
It looks like it goes into stand-by after a while. When it does, I tried to disconnect and reconnect the adapter and I don't hear the USB connection sound. So I think the USB-C port is "shut down" for some reason. Do you know how to check if the USB-C port is working or not when the monitor goes off? I don't see any error messages in device manager.
Ben
@Raj1788
11-28-2018 01:55 PM
Appreciate all your time and efforts.
I have sent you a private message, for the further course of action that cannot be shared in a public post.
Can you please check your inbox on the forums page for the private message.
Have a great day!
Raj1788
I am an HP Employee