Ctrl Alt F8 disconnects displays?

WindowsKeyboard ShortcutsWindows 10Multiple MonitorsVideo Card

Windows Problem Overview


Learning debugging in PhpStorm and keep accidentally hitting Ctrl + Alt + F8. I use 3 displays this disconnects the two remotes and goes back to just the laptop.

I cannot see this documented anywhere (running Win 10).

The worst part is that hitting the combination again does NOT reconnect the displays.

Anyone know either:

  • combination to reverse the effect - IE reconnect displays

  • how I can stop it or

  • a tool that will help me find out where it is firing from (motherboard/Windows/Intel/nVidia/USB monitor driver - goodness knows where).

Grateful for a helping hand. F8 in various combinations are the debugging shortcuts for PhpStorm and I keep hitting Ctrl + Alt + F8 accidentally. I am about to throw a monitor out of the window.

EDIT Apologies. When I posted this it said Ctrl + Shift + F8 in error. Hope did not confuse anyone.

Oops misremembered my own post!.

Windows Solutions


Solution 1 - Windows

What causes this is additional software that comes with the Intel Graphics chip. This software monitors for the Ctrl + Alt + F8 shortcut and then resets the display settings to a default value.

While the "Intel HD Graphics Control Panel" setup utility allows configuring keyboard shortcuts for other tasks, it does specifically say that you cannot change or disable the shortcut for the "reset settings" task.

The only way to disable this is by disabling the Windows Service installed by the Intel Software.

  1. Go to Windows Services list

  2. Find the "Intel(R) HD Graphics Control Panel" service.

  3. Disable it (open its properties, stop it AND make sure to set its startup type to "Disabled")

  4. You may need to reboot the computer once.


Note that this answer was written in 2016. Newer versions of the Intel Graphics software have options to disable the hotkey without having to disable the service. See the comments of this answer on superuser

Solution 2 - Windows

Just stumbled across this now. In the hope it helps someone else, and in addition to the accepted answer, here is how to re-connect your 'disconnected' display(s) in Windows 10:

Right Click on the desktop and select display settings: How to open display settings in Windows 10

.

Click on the icon for your disconnected display: Disconnected Display

.

Scroll down, down, down and select Extend / Duplicate form list: Display options list

Solution 3 - Windows

This is about reconnecting.

If it happens just hit WindowsKey+ P, and select again your screen settings.

WindowsKey + P options

Solution 4 - Windows

If you don't have Administrator access to your computer, you can do what I do:

I use AutoHotKey to define lots of useful function keys. You can easily redefine Ctrl+Alt+F8 to bypass the Intel HD driver with this one-line .ahk text file:

^!f8::msgbox, You hit Ctrl+Alt+F8

If you'd rather just ignore the keystroke:

^!f8::return

While this prevents the Intel driver from seeing that key combination, it prevents all other programs you may be running from seeing it, too. That can also be fixed. For example, if you know that in application "myapp" that keystroke is the same as a series of clicks in the menu, say Alt+E, F, G, you can emulate those clicks just inside that application:

#ifwinactive,myapp
^!f8::send,!efg
#ifwinnotactive,myapp
^!f8::msgbox, You hit Ctrl+Alt+F8

Solution 5 - Windows

Something else to try in order to return to some sort of working order quickly...

If your using windows 7 or newer, you can always try getting your screens back by pressing the window key (on the keyboard-bottom left) and the P key at the same time. This will bring up options normally as to how you want your screen to be projected (single, dual, or extended displays). If you tried Win + P and still cannot see anything, try pressing the down arrow on the keyboard. This should bring the display back to normal mode(s).

Solution 6 - Windows

This is on ubuntu 18.04 press on

Ctrl+Alt+F1

Solution 7 - Windows

Problem with the Dockingstation (in my case)

I had the same problem and reset the settings with Ctrl + Alt + F8.

  • For me even the restart did not help
  • The 2nd screen was not even recognized

But my screens are on a docking station because I have an on / off switch. Once off and on again and then it went again.

So users with docking station, should first try to turn the devices on and off.

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionBeNiceView Question on Stackoverflow
Solution 1 - WindowsNineBerryView Answer on Stackoverflow
Solution 2 - WindowsSlowLearnerView Answer on Stackoverflow
Solution 3 - WindowsDan OrtegaView Answer on Stackoverflow
Solution 4 - WindowschasbasView Answer on Stackoverflow
Solution 5 - WindowsturtlkkyView Answer on Stackoverflow
Solution 6 - WindowsGanesan JView Answer on Stackoverflow
Solution 7 - WindowsB.IrneosView Answer on Stackoverflow