Non-root clients can't find /tmp/mir_socket even when it's world-read/writable

[Daniel van Vugt]

Clients can't find /tmp/mir_socket by default when mixing root/non-root:

$ sudo mir_demo_server_minimal --arw-file &
$ mir_demo_client_egltriangle
Can't get connection
$ mir_demo_client_egltriangle -m /tmp/mir_socket # Workaround
*works*
$ sudo mir_demo_client_egltriangle
*works*

[Alan Griffiths (alan-griffiths)]

This behaviour is correct. A client ought to connect to a session compositor (running as the user) and not to the system compositor (running as root).

[Daniel van Vugt (vanvugt)]

You're referring to the Unity architecture. Other uses of Mir (hopefully) will not use nesting, so this bug needs addressing for them.

[Daniel van Vugt (vanvugt)]

Given a simple workaround is documented in the description, which does not require the client to be root, it seems reasonable we should be able to fix this easily.

[Michał Sawicz (saviq)]

Syncing task from Mir.