USB C does not work for DisplayPort

[hbaeuerle]

I  amusing 2 different HP USB C docks and displayport connection to monitor is no longer active.. i can use HDMI but only at 1080p while my monitor is 4K. I tried using a USB-C to DisplayPort cable and another USB C to HDMI/Displayport hub but DisplayPort does not work and HDMI only at 1080p. No recent changes to laptop.

I was using the HP Elite USB-C Docking Station with my HP spectre x360 13-APO but then after a few weeks the Displayport connection to my LG 27UK600 (4K) failed. I bought the HP Thunderbolt Dock 120W G2 and after 2 weeks the DisplayPort failed as well. For a while i was able to use the Displayport by switching to the second USB C port but that also failed after a few days.

I ahve since bought a USB to Displayport cable (did not work at all) and a USB C to HDMI & Displayport Adapter hub but only the HDMI work but only at 1080p not at 4K. 

Not sure what to do as I need my monitor to work on large spreadsheets..

Any ideas? Maybe hardware failure??

[KrazyToad]

@hbaeuerle

Welcome to HP Community

I suggest you download and run the HP Support Assistant from this Link: https://www8.hp.com/us/en/campaigns/hpsupportassistant/hpsupport.html?jumpid=va_r602_us/en/any/psg/p...

HPSA will automatically search for all the latest drivers for your Notebook

1. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.

   

2. Click Check for updates and messages to scan for new updates.

   

3. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.

4. Click the update name for a description, version number, and file size.

5. Select the box next to any updates you want to install, and then click Download and install.

Also ensure Windows is up to date.

Select the Start  button, and then go to Settings  > Update & security  > Windows Update , and select Check for updates. If Windows Update says your device is up to date, you have all the updates that are currently available

Keep me posted how it goes

Thank you and have a wonderful day 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

[hbaeuerle]

thank you for the reply. I have the Support Assistant installed along with all updates. But that did not solve the issue.

I even tried to contact support through the Assistant to chat but when the agent asked me to download an applet so that she could take control over my laptop the chat was disconnected.. 

[KrazyToad]

@hbaeuerle

I understand your concerns and frustration

I have brought your issue to the attention of an appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post personal information (serial numbers and case details).

Thank you

[hbaeuerle]

Thank you - this is embarrassing but after thinking about the issue i decided to use another monitor just to rule out that the monitor I was using was deffective.. and it turns out the DisplayPort on the monitor is the issue NOT the laptop. I called LG and sent it in for repair. My apologies for the inconvenience and thank you for your help!