Yoga 2 Pro Windows 10 device orientation sensors not working windows 10

Question

I upgraded my Yoga 2 Pro to windows 10, and experienced some of the problems related to CPU throttling in tablet mode (running super slow) and they keyboard being disabled after suspend. After trying to upgrade drivers (none were newer that what was provided along with Windows 10) I reset Windows 10 (http://www.qoncious.com/questions/how-restore-windows-10-factory-settings) and it seems those two problems are gone, however I do have a new one
It seems like the sensors are not being detected correctly. The screen rotation orientation is not being detected, and the position of the screen is also not being detected when it's flipped back.
Device manager shows:
- HID Sensor Collection V2
- Sdo Sensor V2 10.0.10240.16384
Related Computer Management Services appear to be up too:
- Sensor Data Service (not running - running it doesn't seem to matter)
- Sensor Monitoring Service (running)
- Sensor Service (running)
Any suggestions on how to fix this would be appreciated. Until then, hope this helps others get a usable Laptop running W10 at the least!
Note - YMC is not anywhere to be found - and flipping the laptop still disables the keyboard but only at full rotation...I've read about this elsewhere on the net. Seems like we still need some drivers from Lenovo..

Answer 1

emobo, I have the same lenovo yoga 2 pro as you (or similar enough... 3200 x 1800 display,  core i7,  256GB ssd).  I have also experienced problems with the windows 10 upgrade in the area of transitioning from laptop, stand,  tent & tablet mode.  In particular,  tablet/tent/stand mode becomes extremely laggy and unresponsive,  as if taps and screen interactions are stacked in a queue,  then,  execute dafter 10 to 30 seconds...  (Its not related at all to screen rotation lock - that works fine). For the others reading this post... the features are described on the lenovo 2 product page and are (or were?) the highlight of owning this type of laptop.  i.e. when flipping the screen around past some point,  keyboard is disabled... http://shop.lenovo.com/us/en/laptops/lenovo/yoga-laptop-series/yoga-laptop-2-pro/ I did the original upgrade via the in place win 8.1 to win 10 upgrade,  keeping all applications,  including the Lenovo software that was included when I bought it ~ 1 year ago.  The laptop did transition automatically to tablet mode,  but performance in tablet mode was unstable and pretty much unusable. I clean installed windows 10 by using the refresh my PC using the keep nothing (no apps,  no files) option.   I backed up to my NAS first... I don't keep may files on the PC anyways - most are on OneDrive. Since then I have been hesitant to put back on the Lenovo software,  and decided to just use the manual swipe in from the right to switch into table mode manually until Lenovo gets a solid windows 10 version of the transitioncontrol software released.   The problem with manual switching...  the keyboard is still active (maybe there is some setting for that somewhere...) if I feel adventurous again,  I may try installing the Lenovo software again.  Will post back what I find. Posting this even though I have no solution... more because I still think it is a software problem,  not something wrong with the actual hardware.