DVMT (Dynamic Video Memory Technology) or like this!

English Hardware
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Yo there!:slight_smile: Im wondering if there is a way to set (or at least fix to certain minimum or maximum) of ram that uses the amds apu. I have a laptop using an a8 6400 and I dont really do gaming or similar video ram uses.
So this system always have 2 GB of ram for video. I was checking for bios setup but isnt available any option as in others systems.
Is some sort of script tor configuration that can handle this?

Thanksrotfl!

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Are you sure it is shared memory and not dedicated memory? Settings are normally in the BIOS.

If possible at all maybe you need the proprietary AMD driver and check out the settings program

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Hi
No proprietary driver for Tumbleweed (only deb available), fglrx doesn’t work with Xorg 1.18. You need to use the open source amdgpu driver for supported cards, there is experimental support for some, but yet to be enabled (it is coming). I’ve just managed to get mine (Mullins R5) running today, it’s configuration uses 1GB of ram…

@OP, AFAIK, it’s the card, not physical ram… check the output from the command below (I see VRAM);


journalctl -b --no-pager |grep "amdgpu"

Aug 21 17:50:07 ernie3 kernel: amdgpu 0000:00:01.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used)
Aug 21 17:50:07 ernie3 kernel: amdgpu 0000:00:01.0: GTT: 1024M 0x0000000040000000 - 0x000000007FFFFFFF
Aug 21 17:50:07 ernie3 kernel: [drm] amdgpu: 1024M of VRAM memory ready
Aug 21 17:50:07 ernie3 kernel: [drm] amdgpu: 1024M of GTT memory ready.

If I run something like glmark2, I see none of my normal RAM being utilized.

What card do you have?


/sbin/lspci -nnk |grep -A3 VGA