| What | Removed | Added |
|---|---|---|
| Assignee | xorg-driver-ati@lists.x.org | dri-devel@lists.freedesktop.org |
| QA Contact | xorg-team@lists.x.org | |
| Product | xorg | Mesa |
| Component | Driver/Radeon | Drivers/Gallium/r600 |
Are you running the same userspace stack with both kernel 3.9 and kernel 3.10/3.11? If so, it sounds like this is UVD related.