Kodi is broken (QEMU, mesa-swrast, pmos-stable)

While working toward #458 (closed), I noticed the Kodi UI is broken on QEMU, at least with swrast driver and pmos-stable kernel.

2020-02-28 00:59:35 - [backend/session/logind.c:637] User has no sessions
2020-02-28 00:59:35 - [backend/session/logind.c:696] Couldn't find an active session or a greeter session
2020-02-28 00:59:35 - [backend/session/direct-ipc.c:35] Do not have CAP_SYS_ADMIN; cannot become DRM master
2020-02-28 00:59:35 - [backend/session/session.c:96] Failed to load session backend
2020-02-28 00:59:35 - [backend/backend.c:286] Failed to start a DRM session
2020-02-28 00:59:35 - [../cage-0.1.1/cage.c:201] Unable to create the wlroots backend

I tried a chmod +s /usr/bin/cage to give it more capabilities but it still doesn't work:

2020-02-28 00:59:35 - [backend/session/logind.c:637] User has no sessions
2020-02-28 00:59:35 - [backend/session/logind.c:696] Couldn't find an active session or a greeter session
2020-02-28 00:59:35 - [backend/session/direct.c:170] Cannot open /dev/tty: No such device or address
2020-02-28 00:59:35 - [backend/session/session.c:96] Failed to load session backend
2020-02-28 00:59:35 - [backend/backend.c:286] Failed to start a DRM session
2020-02-28 00:59:35 - [../cage-0.1.1/cage.c:201] Unable to create the wlroots backend

Is there a missing elogind dependency or something?