Hello, I had the same problem, but for me the repair was working:
You could try to measure the loudspeaker with a multimeter, what is the resistance? Maybe its just broken?
@Talkless The devices page is still under reconstruction to adopt new and shiny design of ubports.com. The content will be updated soon.
[Edit] Done. 🙂
I will test the nexus build this week. I have a number of miracast dongles.
Does bluetooth work on the nexus 5 now?