PSVR running at 60HZ with flickering

[Hermaphrodyke]

Hey there!

I've been trying to set up PSVR with iVRy and it's all gone smooth except for a noticeable flicker on white areas. Dev said on another discussion that it could be due to the HMD running at 60hz and dxdiag/AMD control panel seem to back up this info. Can't change the refresh rate in AMD control panel either, it just springs incompatibility errors. Logs and stuff:

VRSERVER https://file.io/yIPMmF
VRCOMPOSITOR https://file.io/niGfwt
DXDIAG https://file.io/cSFGMq
AMD ERROR https://ibb.co/02pW8R9
AMD CONFIG https://ibb.co/DggDYbR (this is what prompts error)

Thanks in advance! Can't wait to enjoy the buttery smoothness :)

[dzioback]

iVRy, can you look at above issue with direct-VR mode? After changes, SteamVR begins using of refresh rate above 60Hz, but fixed on 120Hz regardless iVRy settings or defined in EDID. Does iVRy driver set this in SteamVR in direct way?

[iVRy]

@dzioback

Please rephrase this or write it in your native language if not English. I can't understand what you're trying to say/ask.

However, you should really not be messing around with custom resolutions, as you're unlikely to get the expected results. The monitor spec needs to support 60, 90 & 120Hz and the refresh rate needs to be set to the intended value via iVRy settings. The driver will switch between two different monitor specs for "direct" and "not direct" driver modes, so if you did want to edit the "direct" mode specs, you'd have to switch iVRy to "direct" mode, restart SteamVR. Exit SteamVR and turn the PSVR off and back on again. You'll probably lose whatever you changed whenever you switch between "direct" and "not direct" driver modes.

The monitor specs supplied with the iVRy driver work correctly with nVidia cards (and with AMD cards at the time of release). I will refer to your findings when I am testing/resolving this issue, so thank you for the research.

[dzioback]

In short summary, whats going on with my PSVR and AMD Radeon:
1. extended mode, for 90/120Hz set in iVRy, SteamVR shows also selected refresh rate, BUT Windows 10 and Radeon not (fixed on 60Hz)
I changed TMDS clock (in "not direct" monitor spec) from 150MHz to 300MHz for HDMI and above problem gone: Windows 10 and Radeon changes refresh rate like is set in iVRy (and shows SteamVR)
2. direct-VR mode, for 90/120Hz in iVRy, SteamVR was fixed on 60Hz
I changed "direct" monitor spec like in point 1 (TMDS for HDMI to 300MHz): SteamVR jump to 76Hz (for both 90/120Hz in iVRy)
Next, I removed that (76Hz) refresh rate from "direct" monitor spec - SteamVR shows 120Hz (for both 90 and 120Hz settings in iVRy)

Above gives real 90/120Hz for extended mode and 120Hz for direct-VR, but I need also 90Hz for direct-VR. I can send you some screens from all elements with my settings if this help.
I think, that Radeon driver check HDMI throughput (TMDS clock) and block higher refresh rates depends.

[iVRy]

Yes, please send them to [e-mail]

[redsunblues]

was there any resolution to this?

[Hermaphrodyke]

โพสต์ดั้งเดิมโดย King:

was there any resolution to this?

1920x1080

Yes i'm so funny.

as far as i can tell no. I just gave up on psvr on pc myself

[iVRy]

This issue is caused by the AMD driver being limited to 150Mhz pixel clock using the current PSVR monitor drivers supplied with iVRy. You can edit the PSVR monitor settings using CRU, edit the extension block HDMI support and set the override maximum TMDS clock to 300Mhz. I'll update the driver with this fix in the next few days.

[iVRy]

There is a bug in SteamVR on AMD that means the HMD driver (eg. iVRy) can't set the refresh mode for VR-Direct mode, it will always be set to maximum (ie. 120Hz for PSVR). I've raised the issue with Valve:

https://github.com/ValveSoftware/openvr/issues/1276