I cannot find a driver for
AMD/ATI RV710/M92 [Mobility Radeon HD 4530/4570/545]v
on Debian GNU/Linux.
This is likely a public supported driver for your distro (if it exists) that gpu is no longer supported and only legacy drivers exist. I would as the question in your support forum for your distro. If none can be found you might look into another flavor of Unix? Ubuntu has pretty decent support from their community for the older AMD gpus. Not say debian does or does not. I just don't have much experience with that.