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A while ago I bought a Dell computer (Vostro 15 3568) that came with Ubuntu 16.04 LTS OS. The computer has(/had) an AMD R5 M420 graphic card installed on it. For about 2 years my system recognized my graphic card (when I looked on the detatils of the OS on ubuntu), I had no problems even when I upgraded to 18.04 LTS.

A month ago my whole OS crashed and wouldn't load any more, prompting an error on boot that the graphic card faild (can't remember the exact error message).

After a day trying to fix it I decided to reset my computer to factory settings and rebuild everything I have lost. Since then, my computer refuse to recognize my graphic card. Currently I work on 18.04 LTS and the details window shows the following info:

My system details

trying lspci command gives the following output:

    lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)

It might be useful to mention that while trying to fix my computer I have watched some videos recommanding to disable my graphic card through grub. I did so, but after seeing it doesn't work I changed it back.

My current grub file

What I changed back then was adding nomodeset to the end of the line arrowed (inside the quoteation marks). Of course update-grub was executed after every change.

Any idea why the OS doesn't recognize my graphic card, and how can I make it use it?

Lorenz Keel
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1 Answers1

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So thank you all for your aid, however none of those solved my problem. The issue was that i couldnt find a proper driver for my Graphic Card supporting linux.

However when some focal fossa (20.04 LTS) reviews started to get published one of the first things I heard is that it features more support in Graphic Cards in both Nvidia and AMD. And indeed once I upgraded my distro the system started recognizing my radeon once again.

So not exactly a proper fix for the problem, but it works.

p.s. If after the upgrade I had no success, I thought about calling the company that sold me the company or even straight to dell, and ask for an adequate driver. It's a long shot, but I figured if the OS recognized it once that means someone made the introduction between them at some point, so the driver is somewhere out there...

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