Windows 8 turns screens off on lock

07
2014-07
  • Rob

    When I lock Windows 8.1 (I have 3 displays) all of them will turn black. I want to keep my screens open and I've also set this in the Energy Manager to 5 hours before turning screens to sleep.

    However, they still go to black after a few seconds after I lock my PC. How can I prevent this?

    • Answers
  • Martin

    That has to be a Power Management setting, Either relating to Hard Drives or Hibernation or Sleep or Monitor Setting times, obviously,

    Now, you said that you already check it, i would suggest looking at it again and in a lot more detail, it's probably one of those things where you change it in one place, but it needs to be changed in another as well,

    Like in Windows 7 When you set the PC to Never Turn off , but it still does because of the hard drive settings to shut off after 10mins or something like that

    Now.. a little off topic, but since your talking about this

    How about , when you do get it to do what you want, it may interest you to change the default background while in Lock Mode,

    check this out.. Your Welcome

    (http://www.sevenforums.com/tutorials/5382-log-screen-change.html?ltr=L)


    • Related Question

    Windows 8.1 backlight turns off
  • tenhouse

    This is one of the strangest things I have ever seen.

    I have an HP Elitebook 8460p and recently updated my Windows 8 to Windows 8.1.

    Now when I have certain windows open and focused (it's always different, sometimes it's chrome, sometimes it's the control-panel and so on, there is no clear pattern) the backlight of the screen is completely turned off - when I take a torch and point it to the screen or hold it to a bright-light source I can see there is still a picture there you can even work (or better said you cuold if you'd see anything). When I tab to certain other windows the screen goes back to normal back light - I can then tab back to the other window and the backlight will be turned off again.

    I have no idea what's going on and also no idea what information you need. The display-adapter I got is the AMD Radeon HD 6400M - I tried updating to the newest driver but that didn't help.

    Here's a video of the whole thing:

    http://www.youtube.com/watch?v=kIV_Q8uayUA


    • Related Answers
  • Matthew Williams

    I have a HP EliteBook 8460p. I've had the same annoying problem for several months already (after I upgraded to Win 8.1). It appears that every time I plug the AC adapter the screen brightness goes to a full 100% and then it shuts off. So here's the solution that worked for me.

    Control Panel > Power Options > Change Plan Settings > Change Advanced Power Settings > Display > Display Brightness.

    Change the Plugged In percentage to 95% instead of 100%.

    Now, every time I plug the AC adapter the brightness goes to 95% and the display does not shuts off.

  • tenhouse

    I realized that it only occurs when there is too much "white" (the color) on the screen. I installed the Windows 7 driver for my graphic card and everything works again...

    Please refer to this thread for details.