I recently reinstalled win10, and the external display will go black 1 minute after the screen is locked, which is very unfriendly in the company. Let me share how to set up win10 to keep the screen from turning off after the screen is locked.
1. Click the win key on the keyboard, and directly enter regedit, and the "Registry Editor" will pop up, open it directly
2. Copy this address directly to the address bar and press Enter
"Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\7516b95f-f776-4464-8c53-06167f40cc99\8EC4B3A5-6868-48c2-BE75-4F3044BE88A7"
Right-click Attributes, click Edit, change the value to 2, and click OK
3. Find "Control Panel\Hardware and Sound\Power Options\Change Plan Settings" and click "Change Advanced Settings"
Modify the console lock display to close the timeout, modify it to the time you need
