Request for Help: Xorg "No screens found" Issue on Arch Linux with NVIDIA and Intel GPUs

[Vladimir Dergachev]

On modern systems you don't actually need Xorg configuration file - the 
configuration is deduced automatically. Try moving it away.

On Ubuntu, for example, the hardware you have should work after 
installation as is, and it should also work after installing NVidia 
drivers without any additional configuration.

With NVidia drivers you can use the NVidia control panel to fine tune some 
settings.

best

Vladimir Dergachev

On Sun, 29 Dec 2024, Falsify7342 at proton.me wrote:

> Dear Xorg Team,
>
> I am reaching out to seek help with a persistent issue I am facing with Xorg on my Arch Linux system. I have been troubleshooting for days but have not been able to resolve the problem. I am running Arch Linux with the Hardened Kernel (6.12.6-hardened1-2-hardened), and my system has both Intel (iGPU) and NVIDIA (dGPU) GPUs. Here are the details:
>
> System Information
>
> Kernel: 6.12.6-hardened1-2-hardened
>
> Intel GPU: Intel Raptor Lake-P (UHD Graphics), BusID PCI:0:2:0
>
> NVIDIA GPU: NVIDIA RTX 2050, BusID PCI:1:0:0
>
> Xorg version: 1.21.1.15
>
> NVIDIA driver: nvidia-dkms 565.77-2
>
> Intel driver: modesetting
>
> ---
>
> Problem Description
>
> The issue arises when I try to start Xorg. It consistently fails with the error:
>
> Fatal server error:
> (EE) no screens found(EE)
>
> I’ve checked the /var/log/Xorg.0.log file, and the relevant part of the log shows:
>
> (EE) NVIDIA: Failed to initialize the NVIDIA GPU at PCI:1:0:0.
> (EE) No devices detected.
> (EE) No screens found.
>
> ---
>
> Steps I Have Taken
>
> 1. Xorg Configuration File
> I created a configuration file at /etc/X11/xorg.conf.d/10-prime.conf to set up PRIME for the hybrid GPU system. Here is the configuration:
>
>
> Section "ServerLayout"
>    Identifier "layout"
>    Screen 0 "nvidia"
>    Inactive "intel"
> EndSection
>
> Section "Device"
>    Identifier "nvidia"
>    Driver "nvidia"
>    BusID "PCI:1:0:0"
> EndSection
>
> Section "Screen"
>    Identifier "nvidia"
>    Device "nvidia"
> EndSection
>
> Section "Device"
>    Identifier "intel"
>    Driver "modesetting"
>    BusID "PCI:0:2:0"
> EndSection
>
> Section "Screen"
>    Identifier "intel"
>    Device "intel"
> EndSection
>
> 2. Verified Hardware and Drivers
>
>
> lspci confirms that both GPUs are present.
>
> nvidia-smi recognizes the NVIDIA GPU and shows it is functional.
>
> The lsmod command confirms that both the nvidia and i915 modules are loaded.
>
> 3. Checked Variables and PRIME
>
>
> I attempted to use prime-run glxinfo | grep "OpenGL renderer", but it fails with the error: unable to open display.
>
>
> 4. Logs
> I have attached the complete /var/log/Xorg.0.log for reference.
>
>
>
> ---
>
> Request for Assistance
>
> Despite these efforts, the issue persists. I am currently using ChatGPT to troubleshoot, but I believe I may be missing something critical or misinterpreting the logs and steps. I kindly ask for your assistance in diagnosing and resolving this issue.
>
> Thank you for your time and support. Please let me know if you need any additional details.
>
> Best regards,
> Bataya
>
> Falsify7342 at proton.me
> banco177013 at gmail.com
>
>
> https://pastebin.com/a9an6Y7M
>