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PC Drivers & Software

Near76
Journeyman III

Radeon driver crashing Vulkan...

Hello!  The Radeon driver is adding a 'Trigger 6' display adapter as a 2nd 6700XT GPU to vulkaninfo, causing screen to freeze.

In setting up a new Win10 PC w/ radeon 6700xt gpu, as an x-plane simulator, all ran great with vulkan until I added a usb 3.0 to dual HDMI display adapter that uses the Trigger 6 display adapter. I need this for two small 640x480 gauge displays. X-plane instantly freezes upon loading the plane. I've worked with a few others online to get to this point as we troubleshooted the issue. We think we have the culprit, and why I am here asking for help. When I plug in that USB/hdmi device, it shows up in Vulkaninfo incorrectly as a second Radeon 6700xt GPU...I can send the vulkaninfo output if needed. When I unplug it, it goes away and vulkan graphics work again.

Feedback from the Vulkan Dev forum points to the AMD driver as the driver is responsible for finding and setting up the hardware on the system.  All vulkaninfo is doing is calling vkEnumeratePhysicalDevices and printing what was returned.  How can I resolve this, is there a way to not have that 2nd display load as an available GPU to Vulkan?  This is also a fairly common "sim" setup and I do not see others with the same issue...something within my AMD configuration?  I have uninstalled and performed a full install several times, no luck.

I am running the latest 21.3.1 driver.  I have also tried rolling back drivers, still does not fix.

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3 Replies

Can you post the Make & Model of your Monitor and how exactly it is connected to the GPU Card or your Motherboard's USB Port?

This seems to be the home page for your Trigger 6 USB-HDMI -VGA Adapter: https://oemdrivers.com/graphics-trigger-6-driver

It has Windows driver for your adapter which might help if you install it.

Screenshot 2022-03-13 220146.png

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Connected to the MCT device (USB\VID_0711&PID_5621) are two RealSimGear 640x480 G5s (RealSimGear Dual G5 Bundle for X-Plane – RealSimGear.com) via two HDMI cables.

Connected to my 6700XT is an ACER Nitro XZ342CK via Display Port.  Nothing is connected to the motherboard monitor port.

Within the Windows device manager everything looks correct, it lists the "AMD Radeon RX 6700 XT" and the "Trigger 6 External Graphics" adapter.  It is using the driver you have highlighted below.  However, vulkaninfo.exe shows this below (according to the Vulkan Devs is incorrect and is the issue, GPU ID 1 should not be there...it comes and goes when the MCT is plugged in):

Layers: count = 1
=================
VK_LAYER_AMD_switchable_graphics (AMD switchable graphics layer) Vulkan version 1.3.203, layer version 1:
Layer Extensions: count = 0
Devices: count = 2
GPU id = 0 (AMD Radeon RX 6700 XT)
Layer-Device Extensions: count = 0

GPU id = 1 (AMD Radeon RX 6700 XT)
Layer-Device Extensions: count = 0

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If you are sure this is a Vulkan API issue try posting your question from AMD Forum's Developer here first to get access to Vulkan & OpenGL Forum: https://community.amd.com/t5/newcomers-start-here/bd-p/newcomer-forum

This is AMD Forum for Vulkan & OpenGL issues: https://community.amd.com/t5/opengl-vulkan/bd-p/opengl-and-vulkan-discussions

but you need to get whitelisted by the Moderator @dipak