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Windows 7: Windows 7 ATI Graphics Card Not Recognized

23 Nov 2011   #1

Windows 7 Pro x64 SP1
Windows 7 ATI Graphics Card Not Recognized

Hello all,

I have recently had some video issues with my HP Probook 6550b.

Basically, I have recently had the heat sink, motherboard and monitor all replaced. My ongoing issue is that now Windows does now not recognize my on board ATI graphics card.

If I install the drivers from the ATI website it does not acknowledge that the adaptor exists at all. Conversely, under Device Manager, no display adaptor is listed.

I have also installed the 64 bit BIOS update and graphics drivers from the HP website with no success.

Interestingly, If I attach an external monitor, reboot and enter BIOS. I can close the lid, and the external VGA monitor works. However, when I then log into Windows and then try to use the secondary monitor, it does not work.

HP have informed me that as the external VGA out does work, it is not a hardware problem with the graphics adaptor.

How do I go about getting this issue resolved? Currently, all video is jittery and the brightness is sub-standard.

Thanks in advance.


My System SpecsSystem Spec

24 Nov 2011   #2

Windows 7 Pro X64 SP1

It's not unusual for laptops to use nonstandard device IDs for their graphics adapters, so the installer for drivers downloaded form AMD may not recognize the device.

Best get them from HP:

HP ProBook 6550b Notebook PC*-* Download drivers and software - HP Business Support Center
My System SpecsSystem Spec

 Windows 7 ATI Graphics Card Not Recognized

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