#StackBounty: #laptop #external-display #docking-station #usb-c HP Elitebook loses external video signal after short time in a dock

Bounty: 50

I have recently set up a docking station at home.

It works great when I connect my old desktop and my newer Lenovo T490 laptop.

However we have a work PC that I would like to connect as well, but we have run into several problems. The laptop is a HP Elitebook 840 G5 with (I believe) a thunderbolt 3 port.

Description of the problem

When connected for the first time, everything worked as expected for about 20 min then the video signal suddenly went away. All the USB peripherals kept working and the laptop was still charging (from the PD in the dock).

We tried connecting one of the displays directly with HDMI – this didn’t work either so we thought some piece of hardware was fried.

The IT department tried resetting the PC and surprisingly external graphics were restored. But after about an hour in the docking station the screens suddenly went blank again from missing signal (and the HDMI port stopped working just like the first time – exactly the same situation).

The IT dept has said don’t do that again after a second reset, but I really want this setup to work.

Question

How can I get the HP laptop working consistently with the i-tec docking station? What went wrong and how can I prevent it?

Alternatively – how can I restore external video when this happens, preferably without a hard reset. Any kind of explanation would be great. I’m not too keen on testing different solutions while I don’t know what’s happening and how to fix it (and I can’t reset the machine myself – it has to go through the IT dept.).

The hardware in question for reference

Laptop: https://support.hp.com/gb-en/document/c05903000
Docking station: https://i-tec.cz/en/produkt/c31tripledockpd-2/

What I’ve considered so far

This error is mostly a mystery to me – compatibility between HP laptops and third party docking stations are rarely considered in what I have been able to find. But since the port is a generic TB3 port and the fact that it did work in a limited period of time supports the case that it should be able to work consistently and that the problems are software related.

The i-tec docking station has some included software, but it seems to be only backup tools and the like. I haven’t tried installing it since I can’t think of a convincing argument that it should work.

The dock in question has Power Delivery up to 85W. Our electric outlets are not grounded (old house and installation) and we have gotten a few shocks from the tip of the USB-C cable itself and from the metal casing of the HP when it is connected when we accidentally ground ourselves of the nearby radiator. Could there be some security measure in the laptop disabling external video when registering a surge of this kind? If this is the case can anything be done about this without rewiring the house?


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#StackBounty: #windows-10 #laptop #battery #charger #hp-elitebook Charger keeps disconnecting – Windows issue?

Bounty: 50

My Hp laptop charger keeps disconnecting and reconnecting. After 20 secs, it disconnects, and 5 secs later, it reconnects.
I’ve noticed this behavior only when laptop is turned on.
Here’s what I tried:

  • Uninstalled battery drivers from Device Manager (worked for about an hour but issue is happening again now)
  • Running in Safe Mode (It worked fine there)
  • Restoring default bios and power settings

I googled and tried other solutions as well. Charger works fine when laptop is turned off, but so soon as windows starts, the whole thing starts happening.

My specs:

Hp Elitebook 8460
Intel Core i5-2520M CPU @ 2.50GHz
4 GB ram
Windows 10 (64 bit)

EDIT:

  • I also resetted the Windows but no benefit

EDIT 2:

  • This only happens when the battery is like less than almost 50% (not exact) or a close value


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#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #nvidia #display #20.04 #laptop Can't physically turn-off built in display

Bounty: 100

TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.

I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in Settings > Screen Display I receive the error (in the windows title bar):

Changes Cannot be Applied
This could be due to hardware limitations

It is worth noting that the documentation for the docking station states:

NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.


Additional Info:

  • Graphics card: NVIDIA GeForce GTX 1650 4GB GDDR5
  • Graphics driver: NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440


Get this bounty!!!

#StackBounty: #gnome #laptop #screen How to make a second monitor go off after the connected laptop is closed?

Bounty: 50

I use Ubuntu 18.04.3 gnome laptop with a second monitor connected with HDMI. If I close the lid of my laptop it successfully locks (after I reopen it I have to type my password) but the windows opened on my second screen stay in place. I mean they can be seen after the lid is closed. I want them to go away in that situation (the second screen must go black), how do I do that?


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