Comment 29 for bug 1889342

I am the person who wrote the post on the Dell forums Vladimir is referring to (and I have posted earlier here as above). Note that adding i915.enable_dp_mst=0 doesn't just "sometimes resolve" the very frequent blackouts, disconnects, and other problems I was seeing with my WD19TB dock + XPS 13 9300, it completely resolves all of them! At least with my configuration and versions as stated in that post https://www.dell.com/community/XPS/XPS-13-9300-and-WD19TB-linux-problem/m-p/7723066/highlight/true#M72030.