Lenovo Y50 UHD Laptop: Driver Recommendations and Troubleshooting Information

(updated )

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Lenovo Y50 UHD is a laptop with good specs (especially for the price), as it has a high-end quad-core processor (i7-4700HQ, passmark 7750+ ), 16GB Ram, 256GB SSD, UHD display (3840x2160), Nvidia Geforce GTX 860M GPU, etc. The problem is that it suffers from many driver issues, making it unnecessarily frustrating to use. At first I had several problems, but now my machine is pretty reliable and stable, and I want to document driver recommendations and troubleshooting information. I'm using Windows 10.

I feel the most important things to take care of are the SSD lock-up issue and the Nvidia driver. I will keep this post updated as we get more driver updates.

SSD Lock-up

The system becomes not responsive for 30~ seconds, Task Manager shows 100% disk usage, while no process is using the disk.

The solution is using Standard SATA AHCI Controller instead of intel's for IDE ATA/ATAPI controllers in Device Manager.

  1. Right click on the Intel(R) 8 Series Chipset Family SATA AHCI Controller and click on Update Driver Software ..

  2. Select Browse my computer for driver software

  3. Select Let me pick from a list of ...

  4. Choose and install Standard SATA AHCI Controller

  5. Reboot

A major Windows 10 update will revert the driver back to the Intel's, so you have to manually do this again if it happens.

Nvidia Driver for GTX 860M

It seems GTX 860M suffers from driver issues more than other desktop GPU's. If you install a wrong version of the driver, you will suffer from performance issues, crashes, and even BOSDs. Please do not update Nvidia driver without checking the web and make sure it does not have any problems.

Touchpad loses gestures after waking up

Sometimes after waking up, the Synaptics touchpad will lose gestures such as three-finger swipe. Albeit not a permanent fix, running the following batch file will reset the touchpad and bring back gestures. (I saved it as synaptics_touchpad_reset.bat) and run it whenever it doesn't work.

taskkill -f -im syntpenh.exe
cd C:\Program Files\Synaptics\SynTP
start "" "syntpenh.exe"
exit

Enabling Touchpad 2- and 3-finger tap

If you want to enable touchpad 2- and 3-finger tap - for example, 2-finger tap for the right-click and 3-finger tap for the middle-click, you can follow the instructions at this thread.

In sum, what you need to do is, hit windows key + x, select run, enter regedit then hit enter, and on the left pane browse to the following location:

HKEY_USERS\<SID name for your current user>\Software\Synaptics\SynTP\TouchPadPS2

Only issue for me was that I had two entries, TouchPadSMB2cTM2334 and TouchPadPS2TM2334, and TouchPadSMB2cTM2334 was the one that worked.

Then, in the right pane, change values of according to the following:

2FingerTapAction

2 for right click, 4 for middle click.

2FingerTapPluginID

clear any value it may have

3FingerTapAction

2 for right click, 4 for middle click.

3FingerTapPluginID

clear any value it may have

3FingerTapPluginActionID

0

Reboot and the 2- and 3-finger taps will work.

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