La solucion en la lista inglesa: (...) Thanks for the additional info. I'm assuming you are using the stock kernel that comes with Jessie? If so, you'll need to either a) re-build your own kernel that that uses 4K page sizes and has MSI interrupts disabled b) download the kernel image provided by Peter Saisanas that has this done for you already . More information on these bugs can be found here: https://lists.debian.org/debian-powerpc/2015/06/msg00054.html.
A bug report has been filed for both issues. Bug#790690: linux-image-3.16.0-4-powerpc64: powerpc64 & 64Kb kernel pagesize not working with nouveau Bug#790694: linux-image-3.16.0-4-powerpc64: nouveau driver and msi interrupts Here is a link to that kernel image. https://drive.google.com/open?id=0B8pqd5Ots1vffmY5ZnpGUDg4UGNnVFk2M05tQUtEUUkwUmhmQWdLMWpfZGVraDIxSFltb1k The only other way "around" this with the stock kernel is to disabled acceleration on the card by passing in nouveau.noaccel=1 at the yaboot prompt. -- "El cielo es para los dragones lo que el agua es para las ninfas"