Re: NVIDIA Optimus and KDE

[Sérgio Basto <sergio@xxxxxxxxxx>]

Hi, 

Correction 

On Mon, 2023-09-18 at 20:57 +0100, Sérgio Basto wrote:

https://docs.fedoraproject.org/en-US/quick-docs/set-nvidia-as-primary-gpu-on-optimus-based-laptops/

https://rpmfusion.org/Howto/Optimus#NVIDIA_PrimaryGPU_Support

https://wiki.archlinux.org/title/NVIDIA_Optimus#Display_managers

glxinfo | grep -E "OpenGL vendor|OpenGL renderer"

OpenGL vendor string: NVIDIA Corporation

OpenGL renderer string: NVIDIA GeForce GTX 1050/PCIe/SSE2

I just check /usr/share/sddm/scripts/Xsetup and no need changes anymore 

xrandr --setprovideroutputsource modesetting NVIDIA-0

xrandr --auto

sorry is not /usr/share/sddm/scripts where we should looking for, is in /etc/sddm/Xsetup and I still need add:  

xrandr --setprovideroutputsource modesetting NVIDIA-0

xrandr --auto

note, I disable intel graphic on boot with intel_iommu=igfx_off , this ensure me, that I'm using NVIDIA Optimus.

If I don't do what is described before in sddm/Xsetup ,  sddm give me a black screen .

Anyway sddm on boot have something wrong , I need run systemctl restart sddm , to appears correctly . 

Best regards,

in grub default (/etc/default/grub)  I added 

intel_iommu=igfx_off

and I also added 

export LIBVA_DRIVER_NAME=nvidia

yesterday I added to  /etc/sddm.conf

[General]

DisplayServer=x11

On Mon, 2023-09-18 at 12:34 -0600, sbob wrote:

All;

I just installed Fedora 38 KDE spin on a laptop with an NVIDIA card.

Per the rpmfusion HOWTO NVIDIA page I have an optimus card since this command finds my card:

# lspci | grep -e 3D
0000:01:00.0 3D controller: NVIDIA Corporation GA107M [GeForce RTX 3050 Mobile] (rev a1)

The docs say that GDM/Gnome detects it automatically but I am running KDE, can someone point me to the right guide to use for KDE?  Do I just install akmod-nvidia ?

Thanks in advance

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-- 

Sérgio M. B.

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