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  • Posts: 6
  • Registered: ‎10-13-2018
  • Location: CA
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  • Message 1 of 2

T580 not entering sleep mode properly when on battery power, won't turn on.

2019-01-18, 1:07 AM

My T580 won't wake from sleep mode if I close the lid, press the power button, or tell Windows to enter sleep mode. The power button and lid lights pulse like they do when in sleep mode, but I can still toggle the mute/caps lock/num lock/backlight lights on my keyboard. The fan is usually at full speed too.


In order to get the laptop to turn on, I have to either use the reset button on the back, or hold the power button for 20 seconds. I haven't observed the issue while the laptop is plugged in.


I can't afford to lose any work that I have open, or wait for all my programs to load, but I've never enountered this behaviour so I can't fix it. If it's a Windows 10 issuse, then I have to re-install the OS. I'd like to avoid doing that if the issue is with the laptop.


What do I do?


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  • Registered: ‎01-22-2020
  • Location: US
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  • Message 2 of 2

Re: T580 not entering sleep mode properly when on battery power, won't turn on.

2020-01-22, 13:28 PM

I'm having the exact same issue since around the same time as your post.


It doesn't happen everytime but occasionally. Also it happens if I close the lid or select On-off/Save energy from the start menu.


Very annoying indeed, hoping for a reply.


Thanks ,


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