Windows 10: Dell monitor not connecting to Lenovo Yoga 82BH unless laptop is plugged into a charging cable

Hi there,I have an issue where my monitor doesn't connect to my lenovo 82BH unless the laptop is plugged in and charging. I don't like this as I like to keep the battery around the 80% to prolong battery life and when I pull out the charging cable the monitor disconnects. It's my dad's old one, and it worked fine for him even when his device wasn't charging. In case this is important I'm using a DVI-USBc port to connect it to my laptop.

:)

 

Lenovo Yoga 2 11 plugged in (but not charging) potential driver issue

1) The logs were unremarkable.

2) Run the full custom Lenovo hardware diagnostics (including battery) > post images into the thread
laptops and netbooks :: yoga series :: yoga 2 11 notebook lenovo :: 80cx :: 59404951 :: yb02214724 Lenovo PC Support - US

Run through the troubleshooting steps in these links:

How to fix a Windows 10 laptop that's plugged in but not charging - CNET

How to Troubleshoot Battery Not Charging Issues in Windows 10

 

Built in monitor not working unless I plug in the monitor cable

Hi,

My built in monitor does not work unless I plug in the monitor cable. This is after I tried connecting the laptop to my smart TV via an HDMI cable. All has been working fine until now. Suddenly the built in monitor will not display anything unless the other
screen is plugged in. I went into my BIOS and restored all defaults. Still not working. Is this perhaps a Windows setting problem ? Please help.

Nicky

 

Laptop display and monitor will not wake when HDMI cable plugged into laptop.

I have a laptop. Lenovo ideapad FLEX 4-1480 Signature Edition.

The laptop has a display, and the laptop is connected to a monitor via an HDMI cable.

Sleep mode is disabled.

Screen timeout is enabled.

I lock the computer. The laptop display and monitor both eventually deactivate.

I move the mouse and press keys to wake the monitor. Nothing happens on either the laptop display or the monitor.

If the HDMI cable is not plugged into the laptop, the laptop display will wake as intended. The problem happens only when the HDMI cable is plugged into the laptop.

I have to remove the HDMI cable from the laptop, wait a few seconds, reinsert it, then the laptop display and monitor will wake. Again, the laptop display will wake just fine when the HDMI cable is not plugged in.