Looking at the various logs that are spread out over the various bug reports I'm guessing that under 12.04 the radeon driver was using UMS despite it saying it was using KMS. Once somebody with expertise can confirm this then we can push to have the kernel config and PowerPC boot message updated as per bug 1040526 .
Looking at the various logs that are spread out over the various bug reports I'm guessing that under 12.04 the radeon driver was using UMS despite it saying it was using KMS. Once somebody with expertise can confirm this then we can push to have the kernel config and PowerPC boot message updated as per bug 1040526 .