Nvidia L40 Display Mode - DL380 Gen11

[jamesrs]

Hi all,

We've just taken receipt of our new DL380 Gen11, which we specified with an Nvidia L40 GPU. The L40 GPU's default display mode is Display Off (i.e. compute only, no output from the 4 DisplayPort ports), and we're looking to use the DL380 (initially) as a workstation, so need to change the L40 display mode to Display On via the Nvidia displaymodeselector software.

Nvidia warns (on the displaymodeselector webpage) to check with the system OEM before using the software, as changing modes can cause irreversible damage to the GPU.

Can someone from HPE please confirm that I am safe to use displaymodeselector to change the L40 display mode from Display Off to Display On?

Thanks!

[jamesrs · Accepted solution]

I've just heard back from my HPE contact and he has confirmed that the L40 in the DL380 Gen11 is indeed able to use the Nvidia displaymodeselector software to change display mode.

Hopefully this clarifies the issue for other uses in the future.

[Sunitha_Mod]

Hello @jamesrs,

That's Awesome! 

We are extremely glad to know your concern has been addressed and we appreciate you for keeping us posted. 

[3CB]

HPE support needs this information shared more in their shop.  I couldn't figure out why my new L40 card wasn't showing in Windows Task Manager (no GPU 0 listed) even though the Device Manager said everything was fine.  This post here on HPE.com and an official NVIDIA video on YouTube got it all working:

NVIDIA has a video:

www.youtube.com/watch?v=5nLhKhnQRjo&t=109s

and starting at 6:50 it describes what is needed.  The graphics card defaults to a non-graphics mode for AI-type stuff.  It just needs to be flipped into graphics mode.  The whole video is pretty useful, actually.

[Thaufique_Mod]

Hello @3CB,

Thanks for sharing that information with us. We will take this as feedback and appreciate your patience for keeping us posted.