H.264 and GPU hardware decoding with Nvidia GTX 1080 Ti - no loads on the GPU when scrubbing?

Hello,

I was looking forward to test the latest update of Premiere Pro where GPU-accelerated hardware decoding for H.264/HEVC was added.

I checked that H.264 hardware decoding was ticked-off (Nvidia) under Preferences->Media. I do not have a CPU that includes Intel Quick Sync so this is my only way to go.

I tried editing a sequence with video files from my Canon R6 (filmed in C-log, H.264 format @ both 23.976 fps and 59.94 fps interpreted back to 23.976 to fit the sequence).

The scrubbing performance is still very choppy. What I find strange is that the CPU is showing 100 % utilization while scrubbing while the GPU is showing near 0% (1-2% at most). Isn't GPU hardware decoding supposed to take advantage of the GPU to smooth scrubbing? Wouldn't the GPU usage go up when scrubbing then?

I did a test with GPU hardware encoding just to check there was nothing wrong with the GPU and this does work, I can definitely see the GPU load increase to around 50% while exporting with GPU encoding enabled.

Is there anything I am doing wrong here? Can the 1080 Ti not be "supported" for hardware decoding?

My configuration:

• Adobe Premiere Pro v14.6
• Windows 10
• Processor: Intel Core i7-7820X
• MoB: MSI X299 SLI Plus
• GPU: ASUS GeForce GTX 1080Ti ROG Strix 11 GB
• RAM : Corsair  64GB (4x16Go)
• 2 x 960 EVO NVMe M.2 SSD 500GB (1 for Windows / Premiere Pro, 1 for scratch files and media files combined)

Thanks.