01-16-2014 03:10 AM
Hi, I beleive I'm having problem with the sleep function of my Z400. Whenever I just close the lid or press the power button it won't go into sleep and keeps on but with only black screen even if it option in power plan that it should go into sleep whenever I close the lid or press the power button but if you access the sleep thru the charms and in settings it will go to sleep. I'm on windows 8.1. Thanks.
01-22-2014 08:21 AM
Welcome to Lenovo Community Forums!
I’m sorry to hear that the sleep functionality is not working as expected in Windows 8.1 OS (Operating System). I suggest you to re-install the display driver for the computer from our Support Website and check if the issue persists. While installing the driver right click on the downloaded file and select “Run as administrator” option to get it installed without any error.
Do post us back if the issue still persists.