AMD Radeon HD6770M doesn't work

[Alex16051973]

Hello! I have an HP Pavilion DV7 id product: A9X63EA#ABZ actually with i5-2450M cpu and AMD Radeon HD6700M, Windows10 64bit(upgraded from original Windows7), with 16gb ram.

I'm sure that the second graphic card (AMD Radeon HD6770M) does'nt work even if it is correctly recognized from Windows, the AMD Catalyst Control Center works fine and permits me to choose between the two energy modes.

I've launched the UserBenchmark but it sees only the Intel HD3000 and reports the message "warning: skipping amd radeon hd6700 series: unable to locate attache display".

Even CPUz doesn't recognize the AMD graphic card in the system.

I tried to unistall and reinstall both the graphic card, to disable them. The drivers are updated.

What can I do? Thanks

[Jeet_singh]

@Alex16051973,

Welcome to the HP Forums 🙂 I would like to take a moment and thank you for using this forum, it is a great place to find answers. For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More. I understand you are receiving the error code 43 after installing the graphics drivers, don't worry I'll be glad to help you out, however, for an accurate solution I will need more details:

Have you installed a retail copy of Windows or OEM version?

Have you tried to update the drivers either using Windows update or using HP Support Assistant.

Have you tried to run a test on the video card from F2?

In the meantime, let's try these steps here: 

Let's start off by performing a Hard reset on the notebook: 

Before power resetting your computer, do the following:

1. Disconnect or remove all peripheral devices. Start up the laptop and test the computer by itself, and then reconnect one peripheral device at a time.

2. Turn over the computer and look for a battery compartment door.

   • If there is a battery compartment, use the steps in Reset a laptop with a removable battery.

   • If there is no battery compartment, use the steps in Reset a laptop with a sealed or non-removable battery.

 I recommend to restore the BIOS defaults.You could restore the BIOS with this document selecting the reloading the BIOS default settings. That way it will look at the Hardware installed on the Notebook.

Once done, restart the computer and check.

Next thing, I would suggest here is to Run Windows Updates troubleshooter -

Download and install the troubleshooter from this link.

Now try to perform Windows Updates - 

1) In the search box, type and open Windows Updates. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

If the issue persists, I would suggest here is to uninstall the display drivers on your PC from device manager.

Right-Click on start button> click device manager> expand display adapters>then select the display drivers that are listed and right-click on it and uninstall the drivers.

Check the box that states delete the software for this device.

Now restart the computer and then update the Bios, Chipset and graphics card drivers on your PC either from our HP support website, using this link or download it using HP Support Assistant

Download and install HP support assistant on your PC. It should automatically download and install the latest updates and drivers for your PC.

Refer this link to know how to use HP support assistant.

If the issue persists, I would suggest here is to download and install the latest display drivers from the manufacturer's website.

I would recommend you go ahead and download and install AMD detect tool  -Click here

Once you have downloaded the AMD detect tool on your PC, please go ahead and uninstall thee display drivers from Device manager.

Once done, restart the computer and then double click on the AMD detect file which you have saved and click on Run, follow the procedure to install the display drivers.

Once done, restart the computer and check how it goes.

Could you please respond to this post with the details and with the results of the troubleshooting as this will help me in further assisting you.

Eagerly waiting for your response!

that said, If the information I've provided was helpful, 

give us some reinforcement by clicking the solution and kudos buttons, 

that'll help us and others see that we've got the answers!

Good Luck.