Comments:
Those words were written in Dec 2015. Now the situation has changed. I keep the original words and add some updates at the end of this question.
I am nearly outrageous, Surface Pro 4 is definitely the product that have most bugs of every digital product I own.
With not waking up screen, timely not responding touch screen and pen unresolved, now I have a new problem.
The mouse (or the touch screen) would keeping clicking on the same place (namely, somewhere in the upper left corner)! Make me unable to do any operation. Whenever I need to move mouse to another place, it move back to the upper left corner and click again!
The only way to solve this is to restart the computer.
Please don't tell me to do a two button shutdown, I do this everyday, nothing improved. Now my Surface Pro 4 even can't work normally for 4 hours! From time to time, I have to restart it to use touch screen, to use the pen, to deal with the mad cursor. Not
to mention that this machine basically doesn't have the ability to sleep. Who dare to let it sleep, if you get 70% chance unable to wake up?
Have you ever tested your product before launch?
I thought Microsoft was a reliable company before. Now I don't think so any more.
Update on 6/24/2016:
The one with phantom touches was replaced by Microsoft. That had been too serious and eventually a restart could not solve it. The new one works much better. Though phantom touches still exists when temperature is high. It is frustrating in gaming.
The latest driver seems to have some algorithm to block some phantom touches too. I suppose the old driver has this blocking algorithm too, but the old version driver was not stable enough.
This seems to be both a hardware problem and software problem. Every Surface Pro 4 has different phantom touches. Some better, some worse. The driver is supposed to block phantom touches if they are not too serious.
My personal recommendation: if you have updated to the latest driver and firmware and the phantom touches are still too serious, and a restart could not solve the problem, ask Microsoft to replace your machine, your hardware's problem is beyond the driver's
ability.
The sleep problem and the display card driver has improved. They are much better than before, but still not perfectly solved. Now my Surface Pro 4 can stay up for about 2 days without display driver problem. The sleep still fails frequently.