  Anyone here who could asses whether the hang-problem with vdpau could be
related to GART/IOMMU? Here is what I have in my dmesg:

[    5.186566] Linux agpgart interface v0.103
[    5.186765] AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    5.186766] AMD IOMMUv2 functionality not available on this system
[    8.857000] nouveau 0000:01:00.0: DRM: VRAM: 256 MiB
[    8.857001] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB