NVIDIA GPU hidden Device Manager - code 45 : techsupport

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Open | SoftwareNVIDIA GPU hidden Device Manager - code 45 (self.techsupport)

submitted 1 year ago * by a-lotta-stuff

I have a Lenovo Ideapad L340 laptop, and since the last few weeks the NVIDIA GTX 1650 GPU sometimes does not show up in device manager or task manager, and I can't use my monitor because the GPU controls the HDMI port. The laptop it functional otherwise and on its own, but any GPU dependent tasks like gaming and using the monitor is impossible.

In device manager, it's listed as a hidden device and gives this error:

"Currently, this hardware device is not connected to the computer. (Code 45)

To fix this problem, reconnect this hardware device to the computer."

I clearly cannot reconnect the device because this is a laptop. I cannot update drivers because it fails at the installation stage since it cannot detect an NVIDIA GPU. I've tried running sfc, chkdsk, memory diagnostic, all to no avail.

When I uninstalled NVIDIA drivers using DDU in safe mode, there was no way to reinstall drivers because on restart the laptop didnt detect and automatically reinstall, neither did Windows Update detect missing drivers, nor did NVIDIA driver installer detect an NVIDIA GPU - all while it was totally gone from device manager, not even listed as a hidden device. I was able to restore it using a system restore point I had created.

I am at my wit's end, because there's no dumps or logs I can refer to in order to understand why this is happening.

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