Executing Video player Totem freezes the system

reported by user on Tails 2.11, reproduced by me on Tails 2.12

Steps to reproduce
—————————

- Start Tails
- Open Totem (from the menu or from console with totem)

System eventually freezes.

(There are some error messages when starting from console, about GTK window warnings or something. But they look like the usual spammy log messages, maybe not related to the problem.)

If I install vlc this problem goes away.

Subtasks

#12502 (closed)

Related issues

Has duplicate #12465 (closed)

Original created by @emmapeel on 12457 (Redmine)

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