Seeing "[Warning]: Skipping unsupported non-RTX GPU: NVIDIA Titan Xp" **despite** using the --/renderer/activeGpu flag to select the correct GPU

On running:

(base) safdar@obelix:~/.local/share/ov/pkg/isaac_sim-2021.1.1$ ./isaac-sim.sh --/renderer/activeGpu=2

I get the following:

[Info] [carb] Logging to file: /home/safdar/.nvidia-omniverse/logs/Kit/Isaac-Sim/2021.1/kit_20211014_194029.log
[Info] [carb] Initializing plugin: carb.events.plugin (interfaces: [carb::events::IEvents v0.2]) (impl: carb.events.plugin)
[0.010s] Loading user config located at: '/home/safdar/.local/share/ov/data/Kit/Isaac-Sim/2021.1/user.config.json'
2021-10-15 02:40:29 [71ms] [Warning] [omni.ext.plugin] Extension with the same id is already registered. ext_id: 'omni.kit.xr-1.0.0', ext 1: '/home/safdar/.local/share/ov/pkg/isaac_sim-2021.1.1/kit/exts/omni.kit.xr', ext 2: '/home/safdar/.local/share/ov/pkg/isaac_sim-2021.1.1/kit/extscore/omni.kit.xr'
[0.086s] [ext: omni.usd.config-1.0.0] startup
[0.087s] [ext: omni.usd.libs-1.0.0] startup
[0.239s] [ext: omni.kit.pipapi-0.0.0] startup
[0.244s] [ext: omni.usd.schema.semantics-0.0.0] startup
[0.247s] [ext: omni.usd.schema.audio-0.0.0] startup
[0.249s] [ext: omni.hydra.iray-0.1.0] startup
[0.253s] [ext: omni.kit.pip_archive-0.0.0] startup
[0.257s] [ext: omni.kit.loop-default-0.1.0] startup
[0.257s] [ext: omni.kit.async_engine-0.0.0] startup
[0.265s] [ext: omni.stats-0.0.0] startup
[0.267s] [ext: omni.assets.plugins-0.0.0] startup
[0.269s] [ext: omni.appwindow-1.0.0] startup
[0.282s] [ext: omni.client-0.1.0] startup
[0.290s] [ext: omni.kit.test-0.0.0] startup
[0.300s] [ext: omni.kit.renderer.core-0.0.0] startup
INTEL-MESA: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

2021-10-15 02:40:30 [367ms] [Warning] [gpu.foundation.plugin] Skipping unsupported non-RTX GPU: NVIDIA TITAN Xp
2021-10-15 02:40:30 [367ms] [Warning] [gpu.foundation.plugin] Skipping unsupported non-RTX GPU: NVIDIA TITAN Xp

|---------------------------------------------------------------------------------------------|
| Driver Version: 470.74      | Graphics API: Vulkan
|=============================================================================================|
| GPU | Name                             | Active | LDA | GPU Memory | Vendor-ID | LUID       |
|     |                                  |        |     |            | Device-ID | UUID       |
|---------------------------------------------------------------------------------------------|
| 0   | Intel(R) UHD Graphics 630 (CFL.. |        |     | 48145   MB | 8086      | 0          |
|     |                                  |        |     |            | 3e92      | 512aef43.. |
|---------------------------------------------------------------------------------------------|
| 1   | NVIDIA TITAN Xp                  |        |     | 12534   MB | 10de      | 0          |
|     |                                  |        |     |            | 1b02      | d469296d.. |
|---------------------------------------------------------------------------------------------|
| 2   | NVIDIA GeForce RTX 2080 Ti       | Yes    |     | 11510   MB | 10de      | 0          |
|     |                                  |        |     |            | 1e04      | 90af1795.. |
|=============================================================================================|
| OS: Linux obelix, Version: 5.11.0-37-generic
| XServer Vendor: The X.Org Foundation, XServer Version: 12009000 (1.20.9.0)
| Processor: Intel(R) Core(TM) i7-8086K CPU @ 4.00GHz | Cores: Unknown | Logical: 12
|---------------------------------------------------------------------------------------------|
| Total Memory (MB): 64193 | Free Memory: 56005
| Total Page/Swap (MB): 2047 | Free Page/Swap: 2047
|---------------------------------------------------------------------------------------------|

Note the 2 warnings:

2021-10-15 02:40:30 [367ms] [Warning] [gpu.foundation.plugin] Skipping unsupported non-RTX GPU: NVIDIA TITAN Xp
2021-10-15 02:40:30 [367ms] [Warning] [gpu.foundation.plugin] Skipping unsupported non-RTX GPU: NVIDIA TITAN Xp

The non-RTX GPU is the one with id 1 above, which it is understandably skipping. But why does it list these as Warnings despite me specifying –/renderer/activeGpu=2 as a launch argument? The RTX 2080 Ti is listed as the GPU with id 2 in the list that it spits out above. And, Isaac Sim launches alright as well. So, I know I got something right. Still, it’s a bit unsettling to see “Warning” messages despite following the instructions. Am I missing something?