Operating system: Linux-4.15.0-65-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: TITAN RTX/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 415.27
Broken: version: 2.81 (sub 15), branch: m[[ | name ]]aster, commit date: 2019-10-12 15:33, hash: rB95f020c853d6
Short description of error
I cannot rotate the view in any blender file I have (including the startup files) using the middle mouse button or widget. I have seen at least one similar bug reported
but my files do not change the orbital sensitivity to 0 when saved as in the aforesaid bug report.
Instead, my orbital sensitivity is set to 1.0 and no amount of adjustment on my part
seems to solve the issue (i.e. I set orbital sensitivity to 0.4, and the problem persisted).
This does not happen in version 2.80 stable release.
Exact steps for others to reproduce the error
Simply open the file I provided here and try to rotate the viewport. I do not know if you can replicate it - or if
it even has something to do with any particular file - it happens to all of them. so I attached a simple replica of
my general start up file.