which driver for multiple monitors

[erikh13]

I think a recent update, or resetting the BIOS, messed up my drivers. When I use an HDMI-to-HDMI cable to extend my desktop, the monitor recognizes that it's plugged in because the "No Signal" disappears and it goes to sleep. But when I try to extend my desktop, my laptop doesn't recognize my external monitor. Also, my Windows Night Light function appears to be active in my system tray/button panel, but my screen's color is not adjusting accordingly. I've tried reinstalling a few of the display drivers, but that doesn't seem to have helped. Is there another driver I need to try?

[Elohi_NR · Accepted solution]

Hi @erikh13,

Welcome to the HP Support Community.

I understand that you are facing issues with Monitor. I'd like to help!

Fabulous analysis. Spectacular diagnosis of the issue before posting. Kudos to you for that. You've done a remarkable job performing the steps. 

This situation will need some additional support from our internal teams in HP. For that to happen, we will give you additional instructions/information via Private Message.

Please check your inbox on the forums page for private message.

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[MatthewOne10]

I have the many of the same 745 G6 with the same issues.  What is the solution for this issue regarding external monitors not working?