The physical HDMI connection seems to have been somehow at fault, because after re-inserting the cables, the extended screen is now back. I was going to contact HP via their website, and they...

Thanks guys, I really appreciate your help. Philc43, the page you linked to seems very promising, but right now the downloads do not work properly. Maybe too much traffic. Hopefully it will work...

What was the Custom HP driver? Where can I get it?I tried downloading an update via HP Support Assistant, but it is unclear whether it's installed already or not.I get a message saying:"Installation...

By the way, am I the only one who thinks it is insane that there is no built in trouble shooter for this? When I go to Display settings, shouldn't there be a little box saying "Is a second monitor...

Damn it. Display #2 stopped working today. This time, it is not picking up a signal at all. Strange thing is, instead of the Microsoft Basic Display Adapter, I am now seeing Intel(R) HD Graphics 530...

It didn't work at first, and so then in pure desperation I downloaded a bunch of things from HP Support Assistant and took a nap, and lo and behold, when I woke up, I had an extended screen. Right...

I have the 152L, but the back looks identical. What is the proper driver, since the one I have is supposedly up to date? And once I have the proper driver, how do I switch to the AMD since it...

The only video connectors are the HDMI outputs, which are spaced about a quarter inch vertically, so not sure if you would consider this two separate groups?

My computer only has HDMI outputs - no DVI or VGA:s. I don't suppose using an adapter would make much of a difference in this case.

By the way, how would I connect both monitors to the add-in card, assuming that is what is required?

Thanks, I will try the HP support. I did a clean install of Windows myself. How do I find out of both are add-in cards?

Thanks, when doing this I get a message saying "Your PC can't project to another screen. Try re-installing the driver or using a different video card."

When I go to Device Manager, I see two display adapters: AMD Radeon R5 330 and Microsoft Basic Display Adapter. According to the DirectX Diagnostic Tool, the latter is the one being used. I don't...

Both of my monitors are working fine, but it is just the same picture being duplicated. The point of this setup is obviously to get an extended picture rather than having two monitors showing the...