Laptop, Dual Display, Lag with closed lid

Hi,

I just bought some monitor to use with my Dell laptop and connected it through the HDMI port of the second graphics display. The problem is that when I close the lid, the laptop automatically turns off the laptop display and stops using the internal video card which leads to minor lag when using the new monitor with only the second graphics display being active.

Obviously the solutions are:
1) Somehow force the internal video card to still be used
2) Stop the turning off of the laptop display when the lid is closed (I don't have such option in control panel -> power options)

Any ideas how to go fix this besides not closing the lid at all?

The hack for 2) that I found, tested on W10 Creators and am using atm is this:

Code:

    Open Device Manager (search it in the Start menu).
    In "System devices" find "ACPI lid".
    Open "ACPI lid" properties, and go to the "Driver" tab.
    Select "Update driver".
    Choose "Browse my computer for driver software" and "Let me pick..."
    Uncheck "Show compatible hardware".
    Choose Microsoft as the manufacturer.
    For model, select "Volume manager".
    Restart the system and it works!

Sadly, I am running into problems with this hack - when resuming from sleep the laptop display (which is closed) is NOT turned on. I thought the hack will completely disable the "awareness" of the laptop whether the display is opened/closed.

The hack works well when the display is opened and then closed - it continues to work.

ekeda said:

Hi,

I just bought some monitor to use with my Dell laptop and connected it through the HDMI port of the second graphics display. The problem is that when I close the lid, the laptop automatically turns off the laptop display and stops using the internal video card which leads to minor lag when using the new monitor with only the second graphics display being active.

Obviously the solutions are:
1) Somehow force the internal video card to still be used
2) Stop the turning off of the laptop display when the lid is closed (I don't have such option in control panel -> power options)

Any ideas how to go fix this besides not closing the lid at all?

Have you tried right clicking the battery icon in the taskbar, then choose Power Options. On the left side you should have a menu saying "Choose what closing the lid does". Click that and choose what you want.

Yep, it's on "do nothing", but this disappears when you use the hack since it basically kind of disables the lid functionality feeding it with the wrong driver.

It seems there is no easy workaround (maybe disable/enable the internal display driver on startup someone on another forum has suggested, but I haven't tested) for this if you want to use duplicate or extended display and you want to use the sleep function with closed screen.

But if you make your second display (the external monitor) your main and restart after that the lag is gone with Windows starting and applying this setting before loading its processes. I didn't restarted the first time because I thought it will instantly change with no lag, which is not the case.

So, the sum up for people ending up here in the future is this:
1) If you want duplicate/extended display and ability to close/open the lid without laptop turning the screen off, but not being able to use the sleep function with closed screen -> use the hack
2) If you want to use sleep with closed lid you have to use only the external display, making it your main (see picture below -> select "show only on") and restart after that

ekeda said:

Hi,

I just bought some monitor to use with my Dell laptop and connected it through the HDMI port of the second graphics display. The problem is that when I close the lid, the laptop automatically turns off the laptop display and stops using the internal video card which leads to minor lag when using the new monitor with only the second graphics display being active.

Obviously the solutions are:
1) Somehow force the internal video card to still be used
2) Stop the turning off of the laptop display when the lid is closed (I don't have such option in control panel -> power options)

Any ideas how to go fix this besides not closing the lid at all?

If you use a laptop it usually has a crappy graphics card and one that is better. I just found out that if you disable the crappy one the lag dissapears if you close the lid.

This is done in the device manager as well but it is underneath screen adapters (translated from dutch so not entirely sure) and you just click the crappy one to select it and then the little black arrow on top. And you confirm.

however this only works if you use one screen at a time and have to change it back to the original settings to use your laptop screen at all.