Microsoft Surface Dock 2

It works on Surface Pro 7, some problems but fixed by Microsoft – I've had it for a year on Surface Pro 7 with 2 screens: 3840x2160 & 2560x1440. The device, new in 2020 did have some screen jitter on one monitor. It got worse with time and eventually, after long sessions changing the software with Microsoft support controlling the machine, Microsoft shipped a new Surface dock 2. This seems to have fixed the screen jitter & occasional failure to synch correctly. The symptoms I experienced were a jitter on one of the connected monitors. Sometimes there was also a displacement of the image so that it was rolled round with some of the image from the ‘right’ of the screen showing on the physical left of the screen. Changing the connecting cables to the monitors or swapping them round did not solve the problem. The only way to solve the problem, temporarily, was to power the SD2 down, wait about 30 seconds and power it up. It then operated normally again for a while. By the end, I was doing this 8 or 10 times a day. It was then that I contacted Microsoft.

Microsoft surface dock 2 - doesn't work with Surface pro 7 for monitor display and seems impossible to access support – I purchased this as I thought that purchasing a surface brand product would make it easy to connect monitors to my surface pros (6 and 7). Works with the 6 and not the 7. After searching appears this is a common problem but not acknowledged by microsoft and you are expected to spend $$$ on lots of cable to see if this fixes. Have tried to get support - this is hard to get through with timezone issues and can't afford to spend more money after spending $400 on a device that is designed for surface pros.