D455 and RealSense Viewer Slow/Laggy on new i9 Dell laptop

July 08, 2022 19:46

I am a new user of the D455. I have tried it on three Dell laptops and it runs fine on two of the three. On the third laptop it's very slow/laggy using the RealSense Viewer app and its default settings (even with only the depth camera on). If I turn on post processing it almost complete stops/freezes. Ironically, this laptop is the newest and most powerful of the three (and the one I'd like to use with this D455, for a variety of reasons). I've used Dell Command to update all the drivers on this laptop. I've update the firmware in the D455.

Anyone have any ideas what's causing this? (Probably something simple)

Some details:

Intel RealSense Viewer v.2.50.0.3785
Dell Precision 7740
Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz 2.40 GHz
32.0 GB (31.8 GB usable)
Windows 10 Enterprise
Windows Feature Experience Pack 120.2212.4180.0

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6 comments

MartyG

July 08, 2022 20:40
Hi Matthew Schmidt

Please try disabling the two GLSL options in the Settings interface of the RealSense Viewer using the instructions at the link below to see whether it makes a positive difference to performance on that particular laptop.

https://github.com/IntelRealSense/librealsense/issues/8110#issuecomment-754705023
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Matthew Schmidt

July 08, 2022 21:36
No difference with GLSL options disabled.
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MartyG

July 08, 2022 21:41
Thank you for testing the GLSL options. Next, please launch the example program rs-capture to display all available stream types simultaneously and see whether this program also lags.

https://github.com/IntelRealSense/librealsense/issues/8024#issuecomment-747630656
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Matthew Schmidt

July 08, 2022 22:24
Well, it's definitely an improvement running rs-capture, vs the Viewer...but still not quite right. It streams all three channels (VL, depth and IMU) at what looks like a reasonable rate for about 5 seconds, then it hesitates/glitches for about 4 frames over about 2 seconds, then this cycle repeats, over and over, consistently. Task manager says rs-capture is using about 3 to 4% of my CPU. I'm mystified.
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Matthew Schmidt

July 08, 2022 22:32
Do the drivers for this camera install from the camera unit itself? The first time I plugged it in to this computer was before the D455 firmware was updated. Is there a way to uninstall/reinstall the drivers? (Just trying to rule things out.)
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MartyG

July 09, 2022 07:30
The camera drivers automatically install when the connector is inserted into the USB port if they have not already been installed. Instructions for completely uninstalling the drivers and then re-installing them are at the link below.

https://support.intelrealsense.com/hc/en-us/community/posts/4419989666323/comments/4431239847443
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