Anvil wrote on 7/14/2021, 6:23 PM

there is more screen about my problem

Dexcon wrote on 7/14/2021, 6:25 PM

That looks like the Nahimic problem that surfaced last year. Please refer to one of the many previous posts about this problem:

... particularly my comment:

Just stopping Nahimic in Task Manager/Services is not enough as it starts running again on rebooting the computer. To properly disable Nahimic, R click NahimicService in Services and then select Open Services. A new window opens. R click Nahimic service and click on Properties in the window that opens. In the context box that then opens, select Disabled in the Startup type field, then hit the Stop button and click Apply and OK. All done. Nahimic now remains disabled on rebooting the computer.

I've recently had to do this again after re-installing Windows 10, and the above still solves the display problem in Vegas Pro 18.

Cameras: Sony FDR-AX100E; GoPro Hero 11 Black Creator Edition

Installed: Vegas Pro 16, 17, 18, 19, 20 & 21, HitFilm Pro 2021.3, DaVinci Resolve Studio 18.5, BCC 2023.5, Mocha Pro 2023, Ignite Pro, NBFX TotalFX 7, Neat NR, DVD Architect 6.0, MAGIX Travel Maps, Sound Forge Pro 16, SpectraLayers Pro 11, iZotope RX10 Advanced and many other iZ plugins, Vegasaur 4.0

Windows 11

Dell Alienware Aurora 11

10th Gen Intel i9 10900KF - 10 cores (20 threads) - 3.7 to 5.3 GHz

NVIDIA GeForce RTX 2080 SUPER 8GB GDDR6 - liquid cooled

64GB RAM - Dual Channel HyperX FURY DDR4 XMP at 3200MHz

C drive: 1TB M.2 PCIe NVMe SSD

D: drive: 2TB Samsung 870 SATA SSD (used for editing current projects)

F: drive: 6TB WD 7200 rpm Black HDD 3.5"

E drive: 2TB Barracuda 5400 rpm HDD 2.5"

Dell Ultrasharp 32" 4K Color Calibrated Monitor

Anvil wrote on 7/14/2021, 6:34 PM

Thank you @Dexcon !
You save my life, I tried your advice and now it work