To also disable Hibernate mode (standby state S4) run powercfg. This policy will disable all sleep modes completely. WinWaitActive( "Local Group Policy Editor") Since I needed to enable / disable sleep mode via Group Policy quite often, I created quick and dirty AutoIt script that opens Local Group Policy Editor and navigates to the correct GP: If necessary also do the same for Allow Standby States (S1-S3) When Sleeping (On Battery).Open Policy called Allow Standby States (S1-S3) When Sleeping (Plugged In) and set value do Disabled.Navigate to Computer Configuration > Administrative Templates > System > Power Management > Sleep Settings.
Launch Local Group Policy Editor (gpedit.msc).This is another way to detect the Acer monitor signal problem. To disable sleep mode completely you can use Local Group Policy: Under Multimedia Settings set When Sharing Media to allow computer to sleep.