Thanks, Joakim. On the contrary, that's quite interesting. The first four bytes should never be all 0xff if the GPU is configured correctly by the kernel. If the kernel has misconfigured the GPU in such a way that it cannot respond to register reads, the driver has no hope of working.
Thanks, Joakim. On the contrary, that's quite interesting. The first four bytes should never be all 0xff if the GPU is configured correctly by the kernel. If the kernel has misconfigured the GPU in such a way that it cannot respond to register reads, the driver has no hope of working.