Quote Originally Posted by Licaon View Post
running modelling apps or something can disable this if they get errors.
I find that Blender is quite happy with compositing enabled, even with high poly counts, etc.

I re-ran the Heaven demo keeping the res change in addition to Unredirectfullscreen=true and it did the same session borkage.

I then ran the demo again, this time with Unredirectfullscreen=false and the res change and it worked without borking.

So I ran the demo one more time with Unredirectfullscreen=true and without the res change and there wasn't any borkage. So there's an issue there somewhere when res change plus glx context unredirectage are mixed together.