https://bugs.freedesktop.org/show_bug.cgi?id=58354
--- Comment #6 from Alexandre Demers alexandre.f.demers@gmail.com --- Created attachment 72014 --> https://bugs.freedesktop.org/attachment.cgi?id=72014&action=edit dmesg after lockup
This is the salvaged dmesg retrieved with the help of a ssh connection. Sadly, I don't think there is anything useful in there.