It looks like modesetting, or at least a destructive probe of the attached displays.
There's nothing KMS related in dmesg corresponding to the blanking, so I don't think it's an invalid FB (I'd expect i915 to spit something in dmesg in that case)
It looks like modesetting, or at least a destructive probe of the attached displays.
There's nothing KMS related in dmesg corresponding to the blanking, so I don't think it's an invalid FB (I'd expect i915 to spit something in dmesg in that case)