[SR] Windows GPU Performance almost 0 in Windows Task Manager while rendering

1. Question:

1.1: A user reports that his Task Manager shows the graphics card idle while rendering in Lumion

2. Standard Reply:

2.1: Answer:

Hello

Thanks for the question.

Everything is working fine for you. What is happening, due to the under-the-hood changes of Lumion, is that Windows Task Manager does not display the usage of the graphics card correctly. This is not an issue that strictly affects Lumion, but also other applications using a similar engine.

As you are probably aware, Lumion works based on a game engine and, lately, the gaming community has been fairly vocal about how terribly Microsoft is managing their Task Manager in regards to displaying the graphics card usage. Previous versions (up to Lumion 10.5) were being displayed correctly.

For situations like this, our developers recommend using either MSI Afterburner (with the Hardware Monitor turned on) or GPU-Z (Sensors tab) to monitor the usage of the GPU. This will show the true capacity at which the graphics card is being used.

Does that make sense?

3. Cause/Background information:

3.1: Reference: Zendesk Support Request

3.2: Applicable to:

Lumion 11 and newer users.

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ARTICLE SUPPORT (from transfer to HubSpot):

1. Tables:

Tables were not able to be imported via HubSpot Importer. Any Tables in this article are now based on a DIV Conversion. Same is also the case for the transfer of articles with tables in the EKB.

You can add new (basic) Tables in the HubSpot Editor directly.

If the layout does not work, then you can copy/paste or recreate the old Table from ZD. Where possible the Table has also been copy/pasted from the source page (see link below in 3.). Instructions, see this article: Copying an old Zendesk Table over to HubSpot

2. Finding the reference to the old Zendesk Ticket in HubSpot:

Use this Support article: Finding the reference to the old Zendesk Ticket in HubSpot

and for ZD ticket Search in HubSpot following step 1 in above article:

3. Source Zendesk article:

A source and backup copy was made of all articles 9 June 2025.

The saved HTML files and images are in subfolders of: HTML files and images subfolders.

4: Quick Link to Zendesk IKB article:

(not available when Zendesk closed)

[SR] Windows GPU Performance almost 0 in Windows Task Manager while rendering