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According to the specs of your system it does not support Dual graphics.
Those graphics cards mentioned not compatible for Dual graphics. I would recommend contacting HP for possible upgrades for your system.
Unfortunately I used the wrong formulation. I know it is not dual graphics, but I meant that there is an integrated GPU which is not supported and there is a dedicated one which should be supported. And my problem was that I am unable to use the HD 6650 only because Catalyst says there are no drivers installed.
My goal is to use only the HD6650.
Do you have any more hints?
I'm confused as to why you have a HD4200 mobility GPU and a 6xxx series mobility GPU in the same system. The 4200 is not mentioned in the specs.
I would recommend removing the 4200 first, otherwise you may have problems installing our latest drivers.
If you don't want to or if you can't remove it, you can try this.
1. Use Windows 10 update to install the drivers for the HD4200.
2. Download the latest Crimson 16.2.1 Beta driver for legacy products.
3. If the legacy driver does not work, try Catalyst 15.11.1 Beta.
4. If neither of those drivers install correctly, then your configuration is not supported.
I gave up. For the third time. Too many workarounds just to make the damn thing work.
You are right about the HW specs on the HP site, not complete and I also put this issue mostly on HP because of their idiotic decision not to include an option in BIOS to completely deactivate the integrated GPU.
The integrated GPU is actually from the RS880M chipset used on the MB and this is not mentioned on their site at the laptop specification.
I basically had two options:
1. mod a BIOS and disable the integrated GPU, but this comes with some risk to brick the computer (not possible to even recover with the special procedure)
2. revert to windows 7. I chose this the second time and possibly for the last time.
I work as an embedded SW developer and we offer 15 Years support for the offered products.
What is annoying is that both HP and Microsoft recommend (aggressively) to update to windows 10 because laptop supports and so on but: Surprise ! damn shi*t will not work and also everything gets heated fast (due to Microsoft basic driver handling) and there is a lot of noise and heat!
I don't have the time, knowledge or support to write or modify a driver on my own, I guess that maybe someone will do it in the end, but for the moment I did not want to use Windows 10 anymore. I guess mostly because of the frustration. Now I can have a first hand feel of the importance of Android or other opensource SW/platforms.
There might be a Windows 10 driver available via Windows update for your HD4250, but as the HD4xxx series is now a legacy product it is an old driver. Apologies for any inconvenience caused.