System:ubuntu 19.10
Run command:
nvidia-smi nvlink -c
result:
GPU 0: GeForce RTX 2070 SUPER (UUID: GPU-4c7bb584-8461-6a04-2807-06154624105f)
Link 0, P2P is supported: true
Link 0, Access to system memory supported: true
Link 0, P2P atomics supported: true
Link 0, System memory atomics supported: true
Link 0, SLI is supported: true
Link 0, Link is supported: false
GPU 1: GeForce RTX 2070 SUPER (UUID: GPU-0792495b-f871-c277-e9ca-da64688c3673)
Link 0, P2P is supported: true
Link 0, Access to system memory supported: true
Link 0, P2P atomics supported: true
Link 0, System memory atomics supported: true
Link 0, SLI is supported: true
Link 0, Link is supported: false
Xorg.0.log (39.5 KB)
Hi there,
I’m having the exact issue as you have and also getting the same error as you do:
[ 37.191] (II) NVIDIA: The X server supports PRIME Render Offload.
[ 37.191] (EE) NVIDIA(GPU-0): Failed to find a valid SLI configuration.
[ 37.191] (EE) NVIDIA(GPU-0): Invalid SLI configuration 1 of 1:
[ 37.191] (EE) NVIDIA(GPU-0): GPUs:
[ 37.191] (EE) NVIDIA(GPU-0): 1) NVIDIA GPU at PCI:1:0:0
[ 37.191] (EE) NVIDIA(GPU-0): 2) NVIDIA GPU at PCI:72:0:0
[ 37.191] (EE) NVIDIA(GPU-0): Errors:
[ 37.191] (EE) NVIDIA(GPU-0): - No video link present
[ 37.191] (WW) NVIDIA(GPU-0): Failed to find a valid SLI configuration for the NVIDIA
[ 37.191] (WW) NVIDIA(GPU-0): graphics device PCI:1:0:0. Please see Chapter 30:
[ 37.191] (WW) NVIDIA(GPU-0): Configuring SLI and Multi-GPU FrameRendering in the README
[ 37.191] (WW) NVIDIA(GPU-0): for troubleshooting suggestions.
Currently, there are atleast two other posts on this forum with the exact same issue, too.
https://devtalk.nvidia.com/default/topic/1048497/linux/problem-with-enabling-sli-configuration-on-linux/
https://devtalk.nvidia.com/default/topic/1057830/check-if-sli-is-enabled-on-ubuntu/?offset=7#5422310
All of us have a Linux setup with two RTX 20xx cards connected via a NVLink bridge.
It would be great, if an Nvidia representative could make a statement regarding this issue.