You need to modify the desktop driver to make it work for your notebook. Basically I now how it works but unfortunately I'm not familiar with current hardware and drivers.
However, in the german forum there is a how-to that looks promising:
https://www.amilo-forum.de/topic,20122,-Wie-modifiziere-ich-den-Catalyst-Treiber-fuer-mein-Notebook.html#132590I will try to translate the essential steps:
1. Get the desktop driver from
here.
Gnomlord recommends to get the version without the Catalyst Control Center due to performance reasons but I recommend you to chose the version with the CCC because you will be able to measure the GPU-temperature with it.
2. Get the modding tool from
here.
(
Gnomlord recommends to get a registry cleaner to get rid of any old ATI-stuff, but since you don't seem to have some on your system you can skip this.)
3. Unpack the modding tool.
4. Unpack the desktop driver. The dialog looks like
this.
5. The installation process will start automatically. Abort it by clicking "abort" in the dialog that looks close to
this.
6. Start the modding tool and check "Disable User Account Control(UAC)". Maybe Windows and the tool will require a restart. If this is the case, restart both and continue (reactivate UAC after the whole installation is done).
7. Click "Browse" in the modding tool and chose the directory where you unpacked the graphics driver (in this example it is the directory in the screenshot at step 4.).
8. Click "Modify" and wait until you get this message: "Driver Modification Finished"
9. In the explorer go to the directory of the driver (step 4.) and run "setup.exe". This should install the driver. After this is done, reboot.