In any O.S. an i7 8550U the screen goes blank after about 10 min w/o keyboard activity .

[rab66]

An Acer laptop i7 8550U 8GB works properly but if it is left about 10 minutes without any action, its screen goes blank and can not be awaikened, you need to switch it off and start it up again to continue your work.

[David_G_Intel]

Hello rab66

Thank you for posting on the Intel️® communities. 

To have a better understanding, please share with us the following information:

• What is the model of the laptop?
• Which Operating systems did you test?
• Which different drivers did you use?
• Did you use both OEM and Intel drivers?
• If you used different Windows builds, please share the versions
• Provide the Intel® System Support Utility (Intel® SSU)  
  • Download the Intel SSU https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows- 
  • Open the application and select "Everything" click on "Scan" to see the system and device information. By default, Intel® SSU will take you to the "Summary View".  
  • Click on the menu where it says "Summary" to change to "Detailed View".  
  • To save your scan, click on "Next", then "Save".  

Regards, 

David G 

Intel Customer Support Technician

[AndrewG_Intel]

Hello rab66

We are checking this thread and we would like to know if you need further assistance. Please do not hesitate to contact us back if you have additional inquiries.

Best regards,

Andrew G.

Intel Customer Support Technician

[David_G_Intel]

Hello rab66

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Regards, 

David G 

Intel Customer Support Technician