Got myself a Yoga i9 back last year Oct/Nov??
nice and fast
and found out one very peculiar issue
Sometime wake from sleep will not run, with the screen black
the power LED flashing 1 time /sec
and the only way is to hold the power button until it cycle to reboot
earlier search say might be about the auto screen Hz change between battery and power socket
change whatever is said out there and still the problem persist
only recently, 1-2 month the symptom is corralled to a certain conditions
If I login to the laptop everytime i wake up the laptop then the problem doesn't exist
but if I just flip open the screen, the laptop wake up (immediately) then without login to a profile
and then closed back the screen, the next time (after maybe more than 10 mins or more)
the black screen will happens
if I close the screen down and immediately open back, seems to still okay.
the period time for when waking up, not login, then closing the screen, <time here????> and wake up again to black screen
is still unknown
just that it is consistently happens if the login process is not completed with each wake up
since this laptop dont have windows face unlock, and only the fingerprint unlock
it wouldn't be much a problem if the domain didnt dis-abled the windows hello feature
so need to type in Looooonggg *secured* passwords
if anyone knows if there is a ways to fix this, please do share
but if you are facing similar issue like mine
go look back if my current way to prevent this works for you also
This post has been edited by mcchin: Feb 28 2022, 09:48 AM
Lenovo Yoga i9 Black screen wake up issue, very peculiar issue, controllable