When you encounter these errors (or with a wording very close) while using Dragonfly, there are two main things to try:

1 - Make sure the graphics driver is up to date, by going to the graphics card manufacturer's web site (preferred method), or by trying Windows Updates (less recommended)

2 - Try tweaking the TDR registry values (see this article: https://docs.microsoft.com/en-us/windows-hardware/drivers/display/tdr-registry-keys

We recommend either disabling the timeout checking (TdrLevel set to 0) or making the timeout more than its current value (default is two seconds, so for example TdrDelay set to 10)

Some additional registry entries: