@nl1bzw
(sorry for delay – had a major interruption)
There were some things needing fixing.
The switching to the i965 driver on GeminiLake is as it should be.
Given the updates to the transcoder for the subtitle-burning build ,
I would give that a shot first.
Make certain to get the latest build.
HW subtitle burning is the biggest help for ApolloLake/GeminiLake models.