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Nvidia GeForce 840M - vMix won't startup
Rank: Member
Groups: Registered
Joined: 3/21/2016(UTC)
Posts: 11
Location: Belgium
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Hello When I select the program 'vMix' in my Nvidia GeForce drivers to use the GeForce 840M graphics card, vMix just won't start up and gives the following error: “Attempted to read or write protected memory. This often indicates that other memory is corrupt.”
D3DStartupI have a Lenovo Z710 notebook with Windows 10 and I tried reinstalling all drivers, including DirectX 12. I also thought there was a fault with Direct3D/DirectX, but I have the latest version and Direct3D is enabled. Everythink works perfect with my Intel HD4000 graphics card, but I want to use the Nvidia graphics card... Also important to note: the GeForce 840M works perfectly in Lightroom (photo editing software) and Sony Vegas Pro (video editing software). Some screenshots:    UPDATE: I just installed the vMix 17 preview, now it starts up but all I get is this:
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Rank: Advanced Member
Groups: Registered
Joined: 2/14/2016(UTC) Posts: 107  Location: Oss Thanks: 12 times
Was thanked: 15 time(s) in 14 post(s)
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Try this:
- Go to Settings
- Displaty
- Output size is probably set to 1920x1080, change this is for example 1280x720.
Exit vMix and restart is by telling it to use your 840M-card.
Don't no exactly why, but this works for me (Nvidia GeForce GTX 960M).
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Nvidia GeForce 840M - vMix won't startup
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