Solve the problem that the computer's discrete graphics card suddenly disappears
My computer's independent display is NVIDIA GeForce MX250. Because of the driver problem, I can only see card 0 in the task manager details, that is, the integrated graphics GPU0. GPU1 disappears directly without display. Checking the device manager, the display adapter also only displays the integrated display, I thought it was a problem with my graphics card.
Later, I contacted Lenovo's customer service, and I did not solve the problem of installing the driver, creating a new account, and updating the system.
Here are the pits I stepped on and the final solution:
Stepped pit
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In fact, graphics card problems are mostly system and driver problems. My problem is mainly that I can't find the original installed NVIDIA driver version, so I installed various versions of the driver, which have not been compatible.
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The independent display needs to install the following two NVIDIA programs. The directory is generally C:\Program Files\NVIDIA Corporation.
I have always been incompatible. I thought it was because the original driver was not uninstalled cleanly. I deleted everything in these directories in a fit of anger. Don't follow me.
Solution:
In the end, I decided to give up. When I was cleaning up my computer, I clicked into the Drivers directory-D:\Drivers on Disk D
Found these two driver installation folders:
Nvdia_GFX corresponds to install the NVIDIA image driver
Nvdia_GFE corresponds to installing NVIDIA GeForce Experience
Click on the directory and double-click setup.exe to install
Be careful not to choose simplified installation, choose custom installation.
Choose to perform a clean installation
The installation is successful, restart, and open the task manager to see the independent display.