second diplay but no dex

im on a z-fold 4, scrcpy starts in 2nd display mode, identical to if i turn on simulate 2nd dispay in developer settings. dex doesnt start. if i try to start dex it says no compatble display connected.

any help appricated

Start by reproducing the report with a Samsung Z Fold 4, scrcpy's second-display mode, and DeX, then compare the behavior with Android's simulated second display setting. The issue provides no source file or test entry point; done means determining whether the behavior is expected or identifying a reproducible compatibility defect and documenting the relevant result.

Written by the indexing model from the issue text.