I'm seeing this too. Clean install of 11.10 on a ThinkPad T520 (SandyBridge chip).
Using a vanilla GNOME 3 session (No Unity, no compiz) - same symptoms: X hangs but machine is otherwise OK. Alexandre mentioned VMWare... For me, this is semi-reliably reproducible by running 3D applications in a Windows 7 guest using VMWare workstation. Forcing S3TC texture compression to enabled is necessary to get 3D acceleration in guests, which may be relevant...? Let me know if there's anything I can do to help move this forward. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/783993 Title: unity freezing periodicly [drm:drm_mode_getfb] *ERROR* invalid framebuffer id To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/783993/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
