Tesla K20c + GeForce GTX 970 = Fedora-26 config nightmare [384.90, 4.13.5-200.fc26]

Graphics / Linux Linux
1

I have a system with

02:00.0 3D controller: NVIDIA Corporation GK110GL [Tesla K20c] (rev a1)
04:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)

running fedora-26 (kernel: 4.13.5-200.fc26.x86_64), with nvidia-driver.x86_64 (384.90-1.fc26).

No matter what I try, xstart wants to make the Tesla card the primary card, and as a result I end up with no screens. Back in to good old F25 days, a friendly nudge (BusID “PCI:4:0:0” in the Device section) did the trick, but I am stumped.

Any help (please explain like I’m 4.5y/o) would be GREATLY appreciated.

Thanks.
nvidia-bug-report.log.gz (367 KB)

2

Please run nvidia-bug-report.sh as root and attach the tar.gz file it creates to your post.

3

attached to the original message. thanks.

4

Your config is nonsense, it’s telling to use the Tesla as first gpu then set up a multi-gpu config with the gtx970. Doesn’t work, obviously.
The file
/etc/X11/xorg.conf.d/10-nvidia.conf
contains

Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
    Option "PrimaryGPU" "yes"
    Option "SLI" "Auto"
    Option "BaseMosaic" "on"
    ModulePath "/usr/lib64/nvidia/xorg"
EndSection

it should read

Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    ModulePath "/usr/lib64/nvidia/xorg"
EndSection

If that doesn’t work, you have to remove the file and create a /etc/X11/xorg.conf containing

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID  "PCI:4:0:0"
    ModulePath "/usr/lib64/nvidia/xorg"
EndSection
5

THANK YOU!!!
It works!