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?

[Nal_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.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!

[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?