i have an ACER Spin 5 SP513-52N, BIOS 1.15, Windows 10 PRO 1903, Bitlocker enabled, all drivers installed at the version provided in acer support page :
It happens randomly after some time with black screen off, that i can't wake up the screen anymore.
when the screen is freezed in off state, the symptoms are :
- i can hear the fan, but it won't change speed
- (1) pushing a key on the keyboard switches keyboard backlight on, but the screen doesn't switch on
- (2) after doing (1) 3 times or more, the keyboard backlight won't switch on
- (3) when (2) the keyboard backlight still switches on when i push the volume button on the side
when the computer is freezed, i can only reboot it by pressing power button 10s. But then i lose all my current work.
i have already tried all sorts of "restore parameters to default" in all windows power plans.
i can't see any strange event in Windows event log, just the one saying that Windows power off wasn't expected, because i pushed the button 10s.
as a workaround i currently have disabled in power plan the auto screen off to "never", and i use only sleep mode.
sleep mode works perfectly
the problem also happened before when i had BIOS 1.08 and Windows 1803
in the bios, i also tried to disable all Intel VT settings, but it doesn't fix anything.
Thanks for your help!