Describe the bug
When starting SteamVR the computer begins to hang until a generic steamvr fail error message pops up. Upon investigating the logs i could trace it back to vrclient_vrwebhelper_main:

Tue Sep 24 2019 14:18:12.290802 - Failed to allocate new VRCompositor semaphore
Tue Sep 24 2019 14:18:12.290811 - Failed to create shared vulkan semaphore
Tue Sep 24 2019 14:18:12.290824 - Initializing CVulkanVRRenderer
Tue Sep 24 2019 14:18:12.290850 - Debug markers: disabled, missing extension support. Is the Renderdoc layer enabled?
Tue Sep 24 2019 14:18:12.322125 - Initialized Vulkan transfer ring buffer, mapped at offset 0x0x7fdbb2a3d000.
Tue Sep 24 2019 14:18:12.322808 - Failed to allocate new VRCompositor semaphore
Tue Sep 24 2019 14:18:12.322823 - Failed to create shared vulkan semaphore
Tue Sep 24 2019 14:18:12.322835 - CSharedResourceBaseLinux::CreateAssociatedResources failed to pre-allocate semaphore handle=0x10000204d slot=0
Tue Sep 24 2019 14:18:12.322842 - SharedCountingSemaphoreLinux::CreateVulkanCountingSemaphore: failed to create associated semaphores.
Tue Sep 24 2019 14:18:12.322857 - CVulkanVRRenderer::CreateGPUCountingSemaphore - Failed to allocate counting shared resource

Full Logs:
vrclient_vrwebhelper_main.txt

System Information (please complete the following information):

• Distribution: Fedora 30
• VR Headset: Valve Index
• SteamVR version: 1.8.5
• Steam client version: Sep 23 2019, at 16:07:56 / 1569270763
• Opted into Steam client beta?: Yes
• Graphics driver version: Nvidia 435.21
• Gist for SteamVR System Information: https://gist.github.com/maxaudron/1c07abce5ddfde80c1bf3e0921328d86