#StackBounty: #laptop #display #multiple-monitors #resolution #hp-spectre Dell dual monitor is unstable with my HP laptop

Bounty: 50

At work, I have a Dell monitor as a dual screen in addition to my HP Spectre laptop screen.

I have a Dell hub that has the monitor, ethernet, mouse and keyboard as inputs, and then this connects to my laptop via USB.

For the most part it works fine, but there is some strange behaviour regarding the monitor. I will try to describe some of the weird things and see if anyone has any idea of a fix.

Firstly, when I take my laptop home and use it alone, I always have to adjust the screen resolution so it looks okay. No problem.

When I use it again the next day at work:

Sometimes the laptop screen comes on and the monitor remains black.
When I go to display settings, sometimes the Dell monitor appears as a display and sometimes it does not. Sometimes it will appear and then disappear and then reappear, every 10 seconds or so.

Sometimes the Dell monitor will be black for a few minutes and then it will just turn on, and everything will look fine.

Sometimes when the system does recognise the Dell monitor, it will have swapped its position with respect to my laptop screen (i.e. the system thinks I have to move my mouse to the right to appear on the Dell monitor, which is actually to the right).

Quite often, I just restart a bunch of times, and on the (say) third time, it will be okay.

I don’t think there are any loose connections because:

  1. Once the monitor is on and appearing fine, it stays like that all day – even if I move it around.
  2. As I said, sometimes, restarting fixes it, even when I don’t touch any cables.

It just seems that my system can’t quite figure out when resolution / how many monitors and it seems to sometimes jump around between two states trying to figure it out. It usually takes me between 10 and 30 minutes to get it stable each morning, and I don’t even really know what is working. I just restart and change resolution and mess around with anything until it decides it is happy.

I don’t know where to start looking for a fix so if anyone can point me in the right direction that would be great thank you.


Now the Dell monitor never comes on at all – it doesn’t seem to be recognised. Like I said, I’m pretty sure it’s a software issue rather than a connection problem.

Get this bounty!!!

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