I had the same problem with a dell inspiron and found the problem caused by the Intel Management Engine and the new version . So I uninstall driver from device manager and installed an older one the version Interface ver.9.5.24.1790. Now I am ok
Yeah, it will be this what you say as I installed W7 and it worked no problem, now I installed W10 and it also works fine however I am installing updates now and I think it`ll break it again, so I know what to do then, will report. Thx
Check driver updates by Snappy Driver Installer or equal, not by Lenovo I had also some problems with sleep and wake up earlier with Windows 10, but it is all OK now.
well, W7 worked fine, so I installed W10 again, as Acronis W10 image would not boot after restore and this time there was not a problem with sleep mode at all. All updates installed same way as before, but this time sleep mode works fine...