Quadro RTX4000 doesn’t load in system when a iGPU is present. When I install a CPU with no integrated GPU, the nvidia card works fine. When I install a CPU with an iGPU, the iGPU works fine but the nvidia card doesn’t. I can install Gentoo Linux when the displays are connected to either the iGPU or …

I suspect you’ll have to play with iommu options DMAR: 32bit DMA uses non-identity mapping Try if disabling iommu in bios makes the nvidia gpu work, or set it on kernel command-line, either iommu=soft, iommu=off or intel_iommu=igfx_off Other than that, I didn’t find anything obvious in config or …

Please attach the .config of the kernel and a dmesg output.

config.txt (136.6 KB) dmesg.txt (82.4 KB) Here are the requested files, thanks!

May I add, I tried nvidia framebuffer support (should be visible in the config file) and without. Also, a monitor is connected to both GPUs but only the one connected to intel’s displays output.

Thanks! I took a look at my IOMMU settings and did not disable them but enabled passthrough by default: # CONFIG_CALGARY_IOMMU is not set CONFIG_IOMMU_IOVA=y CONFIG_IOMMU_API=y CONFIG_IOMMU_SUPPORT=y # Generic IOMMU Pagetable Support # end of Generic IOMMU Pagetable Support # CONFIG_IOMMU_DEBUGFS …

Depending on what kind of setup you want, you’ll have to create an xorg.conf. Please run nvidia-bug-report.sh as root and attach the resulting nvidia-bug-report.log.gz file to your post. You will have to rename the file ending to something else since the forum software doesn’t accept .gz files (nif…

I don’t know if it’s related or not, but I now got this error: ucsi_ccg 6-0008: con1: failed to register alternate modes For this error I tried enabling Type-C alternate modes for nvidia, but the error kept comming. Full report attached! nvidia-bug-report.log.txt (65.1 KB)

I forgot to mention that when I installed gentoo with the CPU with no integrated graphics, I did not had to make a custom xorg. On that ocasion I installed GNOME but now I am on Xfce, if that makes a difference.

Unrelated, but you should disable iommu debugfs support in kernel config, there’s a big warning in dmesg.

Thanks! In the next reboot the display on nvidia now shows. The display at intel went blank but I now know its a matter of configuration. Nvidia server setting now works. Great help!

Failed to copy vbios to system memory

Graphics / Linux Linux

generix June 17, 2020, 12:47pm 10

Please remove the xf86-video-intel driver, then check how to enable PRIME to have desktop output from both intel and nvidia gpu:
https://forums.developer.nvidia.com/t/official-driver-384-59-with-geforce-1050m-doesnt-work-on-opensuse-tumbleweed-kde/52620/2?u=generix

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Failed to copy vbios to system memory

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