Arch Linux

chris_on_linux

Member

Registered: 2022-09-23

Posts: 20

Disabling Integrated AMD Graphics Card

Hello Arch Linux Forums,
I recently bought an HP Laptop only to realize that the graphics card was integrated and took 2GB of my RAM! I want to disable this as I need all the RAM for my games . My CPU and GPU are:

CPU: AMD Ryzen 5 3450U with Radeon Vega Mobile Gfx @ 8x 2.1GHz

GPU: AMD/ATI Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series]

Can somebody help me reclaim my RAM please?

Thanks,
Chris

Last edited by chris_on_linux (2022-10-15 12:11:56)

The Loko

Member

From: Spain

Registered: 2014-07-23

Posts: 103

Re: Disabling Integrated AMD Graphics Card

Usually you can change shared memory on BIOS, look for "Graphics shared memory" or something like that.
But if you want to play games, you probably can't lower the shared memory much.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,076

Re: Disabling Integrated AMD Graphics Card

In the vast majority of cases your integrated card is what actually drives the display and it needs to be active in some shape or another regardless. "If you need all your RAM for games" don't buy standard office systems with some GPU tacked on but actual gaming laptops with  all the benefits and drawbacks of being directly attached to a dedicated GPU

gnox

Member

Registered: 2013-05-18

Posts: 90

Re: Disabling Integrated AMD Graphics Card

In Bios, Advanced / Advanced Options / UMA Buffer Size.  The reserved size will change from 2048M to 256M

$dmesg | grep VRAM
[    1.823177] amdgpu 0000:06:00.0: amdgpu: VRAM: 256M 0x000000F400000000 - 0x000000F40FFFFFFF (256M used)
[    1.823190] [drm] Detected VRAM RAM=256M, BAR=256M
[    1.823262] [drm] amdgpu: 256M of VRAM memory ready

but dynamically will use space from the system memory