Turning on SVS crashes X-Plane 12

[rightruddr]

Just experience a few crashes today using the Hotstart 650, version 1.8. The first two, I loaded up the plane from cold and dark. The sim always crashed when the IRS aligned. This happens to coincide with the PFD's SVS turning on. I tried uninstalling using the uninstaller, then reinstalling from scratch. The flight was going well until I tried adjusting the PFD settings. I turned SVS back on and the sim crashed less than a second later.

Here's the relevant section of the x-plane log.

1:05:46.240 E/GFX/VK: Failed to allocate from memory index. Requirements: { 256 (256.00 b), 256, ffffffff }
1:05:46.240 E/GFX/VK: Used memory type index: 5 (VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT|VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT|VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)
1:05:46.240 E/GFX/VK: Memory heap Usage: 213.32 mb (223681984 bytes). Budget: 704.00 kb (720896 bytes)
1:05:46.240 E/GFX/VK: Encountered error: VK_ERROR_OUT_OF_DEVICE_MEMORY

...

--=={This application has crashed because of the plugin: Challenger 650 by Hot Start}==--

Log.txt

[Pils]

55 minutes ago, rightruddr said:

1:05:46.240 E/GFX/VK: Encountered error: VK_ERROR_OUT_OF_DEVICE_MEMORY

This means that X-Plane thinks you've run out of VRAM. A few things you can try:

1. Reduce texture quality in Graphics settings
2. Install the 6GB or less VRAM version of the CL650
3. Make sure nothing but the sim is running on Windows (no browsers, minimized processes, etc.)
4. Upgrade GPU drivers
5. Disable Zink plugin bridge
6. Report the issue to Laminar Research

[skiselkov]

Disable Zink and try without, but realistically, the problem is being out of VRAM. That's what's ultimately triggering the SVS code crashing. It simply cannot function if it cannot allocate memory on the GPU to do the 3D rendering. Disabling Zink simply enables the stock OpenGL driver from Nvidia, which will use RAM swapping in cases when you're out of VRAM, at the cost of performance. Might be an acceptable workaround, since the SVS really only operates at 20 fps anyway and is completely disconnected from the sim's rendering, so worst case is you'll get somewhat laggy SVS rendering.

Edited December 1 by skiselkov