Bug OpenXR framerate drops when headset is removed.

When trying to create a project with Unity 2022.3.4f1 with the default packages in the template, the demo scene works great.

However, if I remove the headset, the CPU tanks. Putting the headset back on solves the problem for VR but at this point non-VR use of the application is impossible.

Profiler culprit is FrameEvents.XRBeginFrame > Gfx.WaitForRenderThread 96+% @ 250ms

This isn't ideal in general but it's specially bad if trying to create an application where VR/3D interaction is supported.

Devices tested are Rift S and Touch and Quest 2 and Touch.

OS Name Microsoft Windows 10 Enterprise
Version 10.0.19045 Build 19045
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name CFDEV004
System Manufacturer ASUS
System Model System Product Name
System Type x64-based PC
System SKU SKU
Processor AMD Ryzen 5 5600X 6-Core Processor, 3701 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 2403, 6/16/2021
SMBIOS Version 3.3
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer ASUSTeK COMPUTER INC.
BaseBoard Product TUF GAMING B550-PLUS
BaseBoard Version Rev X.0x
Platform Role Desktop
Secure Boot State Off
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "10.0.19041.2728"
User Name SOHO\dkolev
Time Zone Eastern Daylight Time
Installed Physical Memory (RAM) 32.0 GB
Total Physical Memory 31.9 GB
Available Physical Memory 8.29 GB
Total Virtual Memory 65.0 GB
Available Virtual Memory 10.8 GB
Page File Space 33.1 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Not enabled
Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/device(s) detected, TPM is not usable
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware No
Hyper-V - Data Execution Protection Yes

Name AMD Radeon RX 6800
PNP Device ID PCI\VEN_1002&DEV_73BF&SUBSYS_04F61043&REV_C3\6&13ACD3E9&0&00000019
Adapter Type AMD Radeon Graphics Processor (0x73BF), Advanced Micro Devices, Inc. compatible
Adapter Description AMD Radeon RX 6800
Adapter RAM (1,048,576) bytes
Installed Drivers C:\WINDOWS\System32\DriverStore\FileRepository\u0392410.inf_amd64_db8e7eec2f31b31d\B392251\aticfx64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\u0392410.inf_amd64_db8e7eec2f31b31d\B392251\aticfx64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\u0392410.inf_amd64_db8e7eec2f31b31d\B392251\aticfx64.dll,C:\WINDOWS\System32\DriverStore\FileRepository\u0392410.inf_amd64_db8e7eec2f31b31d\B392251\amdxc64.dll
Driver Version 31.0.14057.5006
INF File oem27.inf (ati2mtag_Navi21 section)
Color Planes Not Available
Color Table Entries 4294967296
Resolution 2560 x 1440 x 60 hertz
Bits/Pixel 32
Memory Address 0xC0000000-0xD01FFFFF
Memory Address 0xD0000000-0xD01FFFFF
I/O Port 0x0000FF00-0x0000FFFF
Memory Address 0xFC800000-0xFC9FFFFF
IRQ Channel IRQ 4294967270
Driver C:\WINDOWS\SYSTEM32\DRIVERSTORE\FILEREPOSITORY\U0392410.INF_AMD64_DB8E7EEC2F31B31D\B392251\AMDKMDAG.SYS (31.0.14057.5006, 95.65 MB (100,296,080 bytes), 5/31/2023 3:33 PM)

 

Is the game view window still open?
Does this also happen with Oculus XR Plugin? (Just to pinpoint if it's OpenXR specifically)

 

Thanks for responding!

Yes, the Game View window is open on a different screen (wasn't an issue with prior versions of Unity)

Yes, I've tried with and without the Oculus XR plugin. Same result.

 

If it wasn't an issue before make a bug report and mention that

 

Any news on this? the issue link doesn't work and I am experiencing the same problem