Solved! Lenovo T450S screen turn off randomly, only come back wakeup sleep mode or switch back from projector Question lenovo yoga 530, Wont work properly after going into sleep mode Question Lenovo l340 gaming, cpu frequency after sleep mode stuck at base clock Question Lenovo Yoga 530 Laptop "Sleep", shuts it down Question Lenovo ideapad 320, black screen, won’t turn off, seems to be stuck in a “sleep”/shutdown loop I'm hoping someone in here can help me use these tools to troubleshoot the software issue, before I simply wipe the drive and start fresh, potentially just ending back here after I reinstall everything. I have recently discovered, but am not proficient enough with the "powerconfig /sleepstudy" troubleshooting tool and Event Viewer seems like it could be handy, but I haven't been effective with delving into the outputs.
I have tried all the usual tricks of turning off Hybrid sleep, turning on/off hibernate, making sure all the drivers are up to date - I've gone direct to the Intel tool to scan my computer and found many more drivers that Lenovo's driver update tool didn't identify, and installed those too. Therefore, this seems like a problem that evolved all of a sudden. Prior to this, only the wake-from-sleep case was occurring once or twice every ~10 times I put it to sleep, but hard shut-down and turning it back on worked.
This problem is 100% repeatable as of a week ago. To get back to Windows, I have to do hold down power for 20 seconds to turn off and drain power, or else use the Novo button. Then I hard shut-down by holding the power button for a few seconds, and try to turn it back on: The power light goes on and the keyboard lights up for a moment, but the screen never reacts. Clicking the power button gives no reaction - power light still varies on and off as if it's in sleep keyboard and mouse get no reaction. If I put the computer to sleep in any way - lid close, short click of the power button, Start>Power>Sleep, etc., then it goes to sleep and will not wake no matter the input. I think the problem can be pin-pointed back to a driver or some other error, and I'm looking for some help. I know it's backwards to replace hardware before troubleshooting software, but Lenovo tech support made a mistake and are now "troubleshooting" the software by jumping to a fresh windows install. The hardware repair did not fix the problem. I've now had my motherboard exchanged on my Lenovo C940, under warranty, after this problem came up just over a week ago.
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