Steam VR Error Code 301

[galaxia_cosplayz]

I have tried many times to follow the instructions given to me through Steam support for this error. I have found no solution and it always comes up with this error no matter what. Can someone please help me I am using a Windows Mixed Reality (Dell Visor) headset and it's refusing to work for me, i've had VR for a while and it's worked fine up until now. Someone help, please.

[rhylos]

What video card do you have?

[beaglebc]

I have similar issue (Lenovo);

Video card: Sapphire AMD RX-570 8gig.

I tried both HDMI ports and a few 3.0 USB. I moved my PC for now am working from home! I also got a new monitor, so went from DVI to DisplayPort. Monitor has Freesync, so turned off in Radeon software. Rebooted, Enabled Direct Mode. all software up to date. One of the HDMI ports make my display goes into 4k mode, which makes my 1080p monitor not too happy.

I hope this helps "BladeBeastUK36's issue at the same time!. thanks.

[Stringy]

same issue. Nvidia GeForce GTX 1050 on WIndows 10 Home 1909 using Acer Nitro 5 spin. Reset laptop to factory. completely removed steam and windows mixed reality and reinstalled. same issue persists. seems Windows and Steam aren't getting along anymore.

[kawashi]

hmmm isso eh um caso de macaquisse

[galaxia_cosplayz]

Originally posted by beaglebc:

I have similar issue (Lenovo);

Video card: Sapphire AMD RX-570 8gig.

I tried both HDMI ports and a few 3.0 USB. I moved my PC for now am working from home! I also got a new monitor, so went from DVI to DisplayPort. Monitor has Freesync, so turned off in Radeon software. Rebooted, Enabled Direct Mode. all software up to date. One of the HDMI ports make my display goes into 4k mode, which makes my 1080p monitor not too happy.

I hope this helps "BladeBeastUK36's issue at the same time!. thanks.

Hi, I don't understand did you add the fix into here and if you did what is it?

[galaxia_cosplayz]

Originally posted by rhylos:

What video card do you have?

I use speccy so I guess by video you meant graphics card. Here is everything in my graphics card section I hope you can help please:

Generic PnP Monitor (1920x1080@60Hz)
Intel HD Graphics 630 (Dell)
4095MB NVIDIA GeForce GTX 1050 (Dell) 41 °C
ForceWare version: 445.75
SLI Disabled

[rhylos]

Originally posted by BladedBeastUk36:

Originally posted by rhylos:

What video card do you have?

I use speccy so I guess by video you meant graphics card. Here is everything in my graphics card section I hope you can help please:

Generic PnP Monitor (1920x1080@60Hz)
Intel HD Graphics 630 (Dell)
4095MB NVIDIA GeForce GTX 1050 (Dell) 41 °C
ForceWare version: 445.75
SLI Disabled

Based off of the GPU you are using, you could try the following:
go to Steam\steamapps\common\MixedRealityVRDriver\resources\settings
edit default.vrsettings

// Disable DX12 support
"forceDisableDX12": false

change to

// Disable DX12 support
"forceDisableDX12": true




Locating default.vrsettings for Windows Mixed Reality Portal for SteamVR

There are potentially multiple default.vrsettings files on your system, and it can be tricky to know which one to modify to enable the above behavior. The file that needs to be changed is part of the Windows Mixed Reality for SteamVR installation. On systems where you haven't modified your steam library path, it can be found at: C:\Program Files (x86)\Steam\steamapps\common\MixedRealityVRDriver\resources\settings\default.vrsettings.

On systems where you've installed Windows Mixed Reality for SteamVR to a different path, you can locate the file by doing the following:

Locate Windows Mixed Reality for SteamVR in your Steam library, right-click it and select Properties...
In the properties window, select the LOCAL FILES tab, and click the BROWSE LOCAL FILES... button.
In the file explorer window that opens, you can locate default.vrsettings under the resources\settings folder.

[galaxia_cosplayz]

Originally posted by rhylos:

Originally posted by BladedBeastUk36:

I use speccy so I guess by video you meant graphics card. Here is everything in my graphics card section I hope you can help please:

Generic PnP Monitor (1920x1080@60Hz)
Intel HD Graphics 630 (Dell)
4095MB NVIDIA GeForce GTX 1050 (Dell) 41 °C
ForceWare version: 445.75
SLI Disabled

Based off of the GPU you are using, you could try the following:
go to Steam\steamapps\common\MixedRealityVRDriver\resources\settings
edit default.vrsettings

// Disable DX12 support
"forceDisableDX12": false

change to

// Disable DX12 support
"forceDisableDX12": true




Locating default.vrsettings for Windows Mixed Reality Portal for SteamVR

There are potentially multiple default.vrsettings files on your system, and it can be tricky to know which one to modify to enable the above behavior. The file that needs to be changed is part of the Windows Mixed Reality for SteamVR installation. On systems where you haven't modified your steam library path, it can be found at: C:\Program Files (x86)\Steam\steamapps\common\MixedRealityVRDriver\resources\settings\default.vrsettings.

On systems where you've installed Windows Mixed Reality for SteamVR to a different path, you can locate the file by doing the following:

Locate Windows Mixed Reality for SteamVR in your Steam library, right-click it and select Properties...
In the properties window, select the LOCAL FILES tab, and click the BROWSE LOCAL FILES... button.
In the file explorer window that opens, you can locate default.vrsettings under the resources\settings folder.

Do I have to delete the default.vrsettings file?

[rhylos]

Originally posted by BladedBeastUk36:

Originally posted by rhylos:

Based off of the GPU you are using, you could try the following:
go to Steam\steamapps\common\MixedRealityVRDriver\resources\settings
edit default.vrsettings

// Disable DX12 support
"forceDisableDX12": false

change to

// Disable DX12 support
"forceDisableDX12": true




Locating default.vrsettings for Windows Mixed Reality Portal for SteamVR

There are potentially multiple default.vrsettings files on your system, and it can be tricky to know which one to modify to enable the above behavior. The file that needs to be changed is part of the Windows Mixed Reality for SteamVR installation. On systems where you haven't modified your steam library path, it can be found at: C:\Program Files (x86)\Steam\steamapps\common\MixedRealityVRDriver\resources\settings\default.vrsettings.

On systems where you've installed Windows Mixed Reality for SteamVR to a different path, you can locate the file by doing the following:

Locate Windows Mixed Reality for SteamVR in your Steam library, right-click it and select Properties...
In the properties window, select the LOCAL FILES tab, and click the BROWSE LOCAL FILES... button.
In the file explorer window that opens, you can locate default.vrsettings under the resources\settings folder.

Do I have to delete the default.vrsettings file?

NO

You edit it as described in the tip and save the file changes. File, save.

[galaxia_cosplayz]

Originally posted by rhylos:

Originally posted by BladedBeastUk36:

Do I have to delete the default.vrsettings file?

NO

You edit it as described in the tip and save the file changes. File, save.

Okay not to sound stupid here but HOW do I edit the file. I right click it and nothing says edit. What do I do?

[rhylos]

Originally posted by BladedBeastUk36:

Originally posted by rhylos:

NO

You edit it as described in the tip and save the file changes. File, save.

Okay not to sound stupid here but HOW do I edit the file. I right click it and nothing says edit. What do I do?

This tip is for experienced users; however editing information is provided below:

First make a backup of the file you will be editing:
Right click the default.vrsettings file
Select Copy
In the same window, Right click an empty area
Select Paste

Now you are ready to edit the default.vrsettings file

Right click the default.vrsettings file
Choose Open with
On the How do you want to Open this, uncheck, Always use this app to open .vrsettings files
Then select Notepad
*Note, you may need to find Notepad by clicking the [more apps] link on the popup window


Be sure to save your file once you are done editing.Start Windows Mixed Reality for SteamVR to see if this allows you to start SteamVR properly without the 301 error you have been experiencing till a proper application fix is released.

[rhylos]

@BladeBeastUk36, before you do the tip above, you could try the new Windows Mixed Reality for SteamVR beta build (1.1.207) to see if this new build addresses your issue.

(You can opt in and out of the beta branch found under the application properties, via the drop down option on the beta tab)

ref: https://steamcommunity.com/app/719950/eventcomments/2259060348522133122

[ztrdsa]

Hello to all,
the fix with "forceDisableDX12": true, inside driver.vrresources worked for me perfectly,
i was looking for a solution since 1 Month.
thank you very much for the tip
my hardware settings
lenovo legion Y510
win10 home 64 bit
nvidia geforce gtx1050
hewlett packard WMR (first edition)

[rhylos]

Originally posted by ztrdsa:

Hello to all,
the fix with "forceDisableDX12": true, inside driver.vrresources worked for me perfectly,
i was looking for a solution since 1 Month.
thank you very much for the tip
my hardware settings
lenovo legion Y510
win10 home 64 bit
nvidia geforce gtx1050
hewlett packard WMR (first edition)

Good to hear. Are you willing to try the beta build to see if the latest build now also fixes your 301 error without having to set forceDisableDX12. If it doesn't work, after reporting back, you would just to set the option back to true.

[beaglebc]

My issues seems to have disappeared with later drivers. I had not used VR for a while, so guess unlucky when I returned.