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shadowspiral

Member

Registered: 2020-11-30

Posts: 2

[Solved] Wrong resolution with Nvidia Prime Offloading.

Hi everyone. I've recently bought a laptop that has a Ryzen 4800h and an Nvidia 2060. After reading the wiki and searching around I think I finally made it work using nvidia-prime as offloading. I am currently using AMDGPU driver with the Nvidia driver.

Now, I've run into a weird issue that I can't seem to find any info to solve. On some steam games, when I try to run them with the "prime-run %command%" the available resolutions on the game settings are limited to 1080p. I have a dual monitor setup with my second monitor being 4k. I thought that this could be a weird issue with the available resolutions, but my xorg.log seems to correctly detect my edid and lists the correct modes for my monitor.

On the other hand, nvidia-settings does not show any x displays in its configuration, so I've done most of the monitor setup with xrandr without major issues. I'm at a loss on where I should check for this.

One final question: I'm also trying to setup the Runtime D3 power mangement Is this only available for intel graphics or is there some configuration to make it possible with amd gpus? Perhaps I should use the modesetting driver?

In any case, thanks in advance.

Last edited by shadowspiral (2020-11-30 15:07:21)

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,473

Re: [Solved] Wrong resolution with Nvidia Prime Offloading.

Does it happen with all of the games?

Out of curiosity, what hapoens if you start one of those in a window bigger than 1080p?

edit:
oh i read that it happens only on some games, maybe the problem is game specific then.

Last edited by kokoko3k (2020-11-30 06:55:36)

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Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,388

Re: [Solved] Wrong resolution with Nvidia Prime Offloading.

[     5.537] (**) OutputClass "nvidia" setting /dev/dri/card1 as PrimaryGPU
[     5.539] (--) PCI:*(1@0:0:0) 10de:1f15:1043:1e21 rev 161, Mem @ 0xfb000000/16777216, 0xb0000000/268435456, 0xc0000000/33554432, I/O @ 0x0000f000/128, BIOS @ 0x????????/524288
[     5.539] (--) PCI: (5@0:0:0) 1002:1636:1043:1e21 rev 198, Mem @ 0xd0000000/268435456, 0xe0000000/2097152, 0xfc500000/524288, I/O @ 0x0000c000/256

The nvidia card is set as your primary card, but the rest of your log indicates the monitor is connected to the amd card.

as for prime-run :

#!/bin/bash
__NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only __GLX_VENDOR_LIBRARY_NAME=nvidia "$@"

It's intended to be used when nvidia is NOT the primary card.

Your configuration is wrong.

Check https://wiki.archlinux.org/index.php/NV … le_methods for your options using both cards .

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shadowspiral

Member

Registered: 2020-11-30

Posts: 2

Re: [Solved] Wrong resolution with Nvidia Prime Offloading.

Well, apparently I had concurring configurations that were interfering with each other. I had an extra rule in xorg.conf.d with nvidia "UsePrimaryGPU" "yes", but it wasn't working properly before that either; in the end, probably a misconfiguration on my part.
Changed that and apparently it is solved.

Thanks on noticing that!