Windows 10: Laptop connected to monitor. Laptop no longer powers up when the lid is closed.

My laptop is connected via an hdmi cable to a monitor. I was always able to power up the laptop with the lid closed. After a recent update was installed, I no longer can power up the system unless I raise the cover. What changed?

:)

 

monitor not detected while laptop lid is closed

I have a two monitor setup using separate USB C to HDMI cables for each monitors. I change the settings in the power plans to do nothing when the lid is closed for both when plugged in and not plugged in. However, when I close the lid one of the monitors
no longer displays and is not detected by my computer. It seems as though the power supply to the cable shuts off when the lid closes. It is strange because it seems that only one port of the three total I have on my laptop stays active when the lid closes.
Any help would be greatly appreciated.

 

Windows 10 sleeps when using external monitor and closing the laptop lid.

Hey Likitha

Thanks for your response.

Before we assist further, I would like to ask you a few questions:

• Have you set Sleep function to activate on closing the laptop lid?
• Did you check if the laptop goes to sleep when not connected to external monitor and lid closed?

To respond to your questions

(1) I have set the sleep function to operate on laptop lid close only when the laptop is on battery power. When it is plugged in I have set it to do not sleep ever.

(2) I have tested that it does *not* go to sleep when I the laptop is plugged in and I close the laptop lid

Further information:

(1) When I first turned the laptop on I attached it to the monitor and closed the lid. It then ran successfully for approximately an hour before hibernating.

(2) I then restarted the system, external monitor plugged in, lid closed and it went to hibernate after approximately 2 minutes.

 

monitor not detected while laptop lid is closed

I have a two monitor setup using separate USB C to HDMI cables for each monitors. I change the settings in the power plans to do nothing when the lid is closed for both when plugged in and not plugged in. However, when
I close the lid one of the monitors no longer displays and is not detected by my computer. It seems as though the power supply to the cable shuts off when the lid closes. It is strange because it seems that only one port of the three total I have on my laptop
stays active when the lid closes. The power setting is set to high performance. Any help would be greatly appreciated.