Hi kiko29,
You may try to make changes to power settings. Please follow the steps below:
- Open ‘Device Manager’
- Click ‘Power options’
- Click ‘Change Plan Settings’ for the selected plan
- Choose the time for ‘Choose to put the computer after sleep’
Please share through which ports the new monitor is connected to the system and paste the screenshot of ‘Device Manager with display adapters expended.
Keep me posted with the information. I will be glad to assist you.