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From What I've searched, my openGL renderer should show my discrete GPU but strangely, it shows my integrated GPU.

Here is my lspci | grep -E "VGA|Display"

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] (rev c3)

and my glxinfo | grep OpenGL

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2)

I have an Ubuntu 18.04

Running on Inspiron 15 5567 16GB ram which has Radeon R7 M440

I've also tried switcharoo with no avail.

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You need to set DRI_PRIME value before running the programs. Example DRI_PRIME=1 glxinfo | grep OpenGL This is assumming you already set the proper provider related article : PRIME

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