Switchable Graphics - Device Not Recognized

essenbe · 18 Mar 2014

Just as a suggestion, have you gone to BIOS and set optimized defaults? As I understand your bios txt, Bios is blocking the card from starting. If that is the case, you will never install drivers as the OS cannot "see" the card. It is not recognized in the OS because BIOS has blocked it, or kept it from starting. It is saying that it does not have the resources to start it. It will not show in Device manager until the drivers are installed. The drivers will not install unless they can 'see' the card. The card is blocked in BIOS for whatever reason. I know you already know this most likely. But, it just seems to me, that the problem is either the card is defective, the motherboard is defective or the BIOS is corrupt or not functioning correctly. The problem you are having is in BIOS not starting the card for whatever reason. It says it cannot find the resources to start it. I doubt I am telling you anything you don't already know. But, I would suggest getting in touch with the vendor you bought the board from. He may know some technical information about that board. The other possibility is what Greg has already said. There is some incorrect setting in bios. I would suggest setting bios to defaults. That should set it to run the card if the card is a part of the board which I understood you to say. That's just my impression of the problems you are seeing.

boeder · 03 Apr 2014

essenbe said:

Just as a suggestion, have you gone to BIOS and set optimized defaults? As I understand your bios txt, Bios is blocking the card from starting. If that is the case, you will never install drivers as the OS cannot "see" the card. It is not recognized in the OS because BIOS has blocked it, or kept it from starting. It is saying that it does not have the resources to start it. It will not show in Device manager until the drivers are installed. The drivers will not install unless they can 'see' the card. The card is blocked in BIOS for whatever reason. I know you already know this most likely. But, it just seems to me, that the problem is either the card is defective, the motherboard is defective or the BIOS is corrupt or not functioning correctly. The problem you are having is in BIOS not starting the card for whatever reason. It says it cannot find the resources to start it. I doubt I am telling you anything you don't already know. But, I would suggest getting in touch with the vendor you bought the board from. He may know some technical information about that board. The other possibility is what Greg has already said. There is some incorrect setting in bios. I would suggest setting bios to defaults. That should set it to run the card if the card is a part of the board which I understood you to say. That's just my impression of the problems you are seeing.

I'm sorry to bump this, I have the exact same problem on my 3-year old dv6-6093ex laptop with ATI 6770.

It all started when I attempted to update the GPU drivers using an HP driver, it updated fine but it conflicted with the brightness/volume key control so I rolled back to the old drivers, again with no problems. Until I started experiencing loss of pictures, black screens, stuttering followed by "driver failed but recovered". Then the laptop failed to wakeup from sleep mode (GPU related) and when I forced a shutdown and restarted, the 6770m was gone.

I've attempted to reupdate the BIOS, clear BIOS to defaults, update the GPU with different drivers, restore factory drivers using the HP Recovery software..to no avail. The 6670m is no longer recognized and I'm not sure what to do.

Is there any way to pinpoint if the problem lies in the drivers, BIOS, mobo or GPU?

Also, OP, did you solve this problem? If so, how?

gregrocker · 03 Apr 2014

Are you getting anything at all on monitor, even in BIOS mode? It could be a failed chip.

If so what happens when you attempt to run Recovery?

Can you boot a disk to attempt a Clean Reinstall - Factory OEM Windows 7?

Do you have a video card you could try in it?

boeder · 04 Apr 2014

gregrocker said:

Are you getting anything at all on monitor, even in BIOS mode? It could be a failed chip.

If so what happens when you attempt to run Recovery?

Can you boot a disk to attempt a Clean Reinstall - Factory OEM Windows 7?

Do you have a video card you could try in it?

Yes, since I have two GPUs (Mobile Intel HD and ATI 6770m) I can boot normally and get a signal on the monitor. Speccy shows no sign of the 6770m.

I haven't tried running recovery from Windows and there are no guarantees that a fresh reinstall of Windows would do much good - if it is indeed a failed GPU.

If it is a failed chip I am not sure what can be done. HP is likely to tell me they don't have the part (I live in Saudi Arabia). I also don't have any experience opening up a laptop and playing with it's parts.

gregrocker · 04 Apr 2014

When I looked at the specs for your PC it seemed to say the 6770 was the only display so I assumed it is a chip, but based on what you say that this is switchable graphics I looked further and the ATI 6770 is a card.

Look in BIOS setup to see exactly what settings are offered for the switchable graphics.

Next I'd consider reinstalling the video card. Taking all precautions against static electricity (touch the case before you reach inside, stay off carpet) carefully remove the card to clean it and its contacts, blow any dust out of slots. You can also try reinstalling it in another slot if available.

Once reinstalled, enable card in BIOS setup, if you get a display from it immediately enable Automatically deliver drivers via Windows Update (Step 3), watch for animation in the System Tray for driver loading, Check for Updates to install all Important and Optional since there may be a driver and enabling Performance Updates delivered.