Surface Book 3 - external keyboard and mouse

Thank you, this at least saved me the effort of wasting time playing with resolutions find a solution.

I have just bought this very expensive laptop and this issue is really causing me a problem. I can't write more than a paragraph before having to delete a load of incomplete words or a string of repeated letters. Mouse pauses every 20-30 seconds for a moment or two. Really disruptive. I might as well have spilled my coffee all over the keyboard.

I have an SB3 32GB i7 1TB connected to a surface dock 1, with 2 external monitors (usually run with the SB3 screen open as a 3rd screen. with no USB devices connected except for a logitech bluetooth receiver (for the external keyboard and mouse connected directly to the SB3. I also nearly always use bluetooth headphones due to living on Teams now. I do suspect the problem is less severe when the bluetooth headphones are switched off but haven't definitively proved that yet as its an intermittent problem. But even so, its an essential for me and not an unreasonable request to be able to type whilst on a call.

Annoyingly, it all worked completely fine with an SB1 with the same peripherals. Disappointing. Please fix this urgently!

Similar issues to the above.

My setup is

SB3 i7 32GB Ram

Docking station

External 4k monitor using usb c connection

Surface wireless keyboard

Surface mouse

Couple of USB drives plugged into base (not dock) for backups etc.

Problem

1. Main issue is that screen will just freeze (waiting doesn't fix) so that i can't type, use mouse etc.  This can happen 15-30 times a working day!
2. Stutter when typing in some applications

Research

I use Chrome and opening a new window almost always triggers issues.  In outlook opening an email also causes issues on occasion.

Temp workaround and trying to minimise issues.

1. Pull the power connector out of the base and thus disconnect the dock.  This resets the 4K monitor.  Plug-in connector, wait for 10 secs for 4K to load back up and then spend another 20 seconds rearranging windows and carry on working until next time!
2. Avoid opening new windows in Chrome (or any new windows for anything else) so using reading panes in outlook and new tabs in chrome.

This really needs to be resolved.  Hope Microsoft can do the right thing and provide fix/information on this.  A quick "we're onto it" would help too.

Just in case it matters,  I have the exact same issues as Davids video.  But I have that issue even without a dock.  I do sometimes connect to a dock (not microsoft) to allow for multi monitors & ethernet but even when im not connected I have the freezing curser. I do use a usb mouse. but i am pretty sure it happened to me even without the mouse plugged in when i was testing it out. I have re-imaged my sb3 with a new image that I downloaded and put on a flash drive (as was suggested to me via this forum).. and still the same issues. 

Its horrible because I had my sb3 for over 3 months and now its too late to return.  and im stuck with a very expensive unreliable laptop.  I waited so long because i assumed it was a driver issue.. now i read all of this and i feel sick to my stomach because I know I got screwed.  and didnt expect it from microsoft.