weston-1.4.0: rpi-backend is broken

[Yann E. MORIN]

Hello All!

I'm trying to run wayland+weston 1.4.0 on the raspberry pi with the
rpi-backend.

Running weston freezes while still in the console, just after displaying
"Initializing Raspberry Pi backend".

Ctrl-C, Ctrl-Alt-Backspace don't do anything. The system is still
responsive via ssh.

I bisected it (bisect range: 1.3.0..1.4.0) to the first bad commit:
    17bccae... input: Handle unplugging the output for a touchscreen

I tried applying 8fe412d:
    Revert part of 17bccae[...]

(17bccae is the failing cset), but this does not fix the breakage.

The RPi userland and firmware I use are the latest from their
repositories, namely:
  userland: cset 5cecd5a
  firmware: cset 940dc3b

I'm now stuck, and out of options on my side. Any idea what I should try
next to solve this? What info did I miss that would help solving this?

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'