My touchpad is unusable. After the windows 10 1607 anniversary update my touchpad is not working good, it is skipping and lagging a lot. The problem only occurs when the laptop is using the Intel iGPU.The only solution that i have found is using the Nvidia GPU.
I have tried updating touchpad and gpu drivers but it doesn't help. I have tried using all Synaptics drivers that i could find. Currently using 19.0.25.5.
The touchpad is set to Advanced in the BIOS and Windows is showing it as precision touchpad (all gestures work but very poorly).
I'm also using Ubuntu in dualboot and the touchpad is working normally.
I guess that this is a I2C driver issue, and I have tried reinstalling the chipset and serial IO drivers but it didn't help.