Jump to content

Solved | Vulkan not recognized ?


Syb

Recommended Posts

Hi !
I wanted to run doom with Vulkan engine but it doesn't seems to be supported on GeForce 980M

 

FATAL ERROR: vkCreateInstance failed with error (VK_ERROR_EXTENSION_NOT_PRESENT)

Does anyone get this issue ?

(last nvidia driver instaled, vulkanRT too P170EM laptop)

Edited by Syb
Link to comment
Share on other sites

980M here also. Could be an Optimus or general mobile GPU issue. After updating to 368.81 I tried Vulkan but OGL ran over 50% faster. Then I cleared my local user temp files in Windows (there was a VulkanRT folder in there with the other junk) and now Vulkan doesn't work at all. Every time I launch Doom it CTD immediately at the first menu.

Link to comment
Share on other sites

Thanks @octiceps, I've installed the driver with a full INF tweak and installed the main VulkanRT in the main displaydriver directory.
Now it works... maybe the Doom patches solved something too

Link to comment
Share on other sites

Could be. A 12GB game patch was pushed out today. Changelog mentions a CTD fix for users of current Nvidia drivers. I'll try Vulkan again tomorrow.

 

So now that Vulkan is working for you, how much faster does it run compared to OGL?

Edited by octiceps
Link to comment
Share on other sites

Well, after the patch Doom now works in Vulkan without CTD. But it still runs much faster (50%+) faster in OGL.

 

What I've noticed is that in Vulkan, CPU ms/frame and thread utilization according to the in-game performance metrics is much higher than in OGL. For some reason, Vulkan uses a lot more of my CPU, not less. This is probably why performance stinks.

Edited by octiceps
Link to comment
Share on other sites

  • 2 weeks later...

Here is what I'm getting at 1080p max settings:

 

Vulkan - 76 FPS

doomvulkangbkxm.png

 

OGL - 123 FPS (+62%)

doomx64_2016_08_15_14sjk04.png

 

And besides the the shitty performance, Vulkan works maybe 1/20 times. Otherwise it CTD instantly after launching game.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.