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Well, not long after someone reported the issue to Valve from my benchmarks, the performance penalty of using Vulkan with the Steam Overlay seems to be mostly fixed.

Beta changelog:
QuoteGeneral
- Fixed game install failing with “Content still encrypted”

VR
- Fixed VR keyboard over-aggressively popping up on library page

Steam Overlay
- Improved rendering performance with Vulkan applications
- Improved stability of Big Picture overlay with Direct3D 10 applications and above


Nice to see my benchmark prompted Valve to push this issue a little quicker. See their release announcement here. Article taken from GamingOnLinux.com.
Tags: Beta, Steam, Vulkan
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24 comments
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wojtek88 Apr 15, 2016
the performance penalty of using Vulkan with the Steam Overlay seems to be mostly fixed.
Will you redo The Talos of Principle tests for Vulkan with Steam overlay turned on?
Pecisk Apr 15, 2016
Well, that was impressively fast.
Liam Dawe Apr 15, 2016
the performance penalty of using Vulkan with the Steam Overlay seems to be mostly fixed.
Will you redo The Talos of Principle tests for Vulkan with Steam overlay turned on?

Probably :)
ziabice Apr 15, 2016
Will they ever fix the Steam Runtime to run with open source graphics drivers?
melkemind Apr 15, 2016
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When you run the Vulkan drivers, do they function well/normally with the desktop and other games, or do you have to switch back to other drivers when you're not testing Vulkan?
Keyrock Apr 15, 2016
I'm glad they addressed this. The overlay is a big feature of Steam. Having said feature come with a 20% FPS penalty would knock much of the shine off the shiny new Vulkan API when using Steam.
Mountain Man Apr 15, 2016
Now we just need more games supporting Vulcan. :D
Mountain Man Apr 15, 2016
Will they ever fix the Steam Runtime to run with open source graphics drivers?
Alternatively, will the open source drivers ever be fixed to run with Steam Runtime?
minj Apr 15, 2016
Now we just need more games supporting Vulcan. :D
this Vulkan typo is annoying, please stop
Armand Raynal Apr 15, 2016
Yeah, we're not in a startrek special episode here :><:
Eike Apr 15, 2016
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Now we just need more games supporting Vulcan. :D
this Vulkan typo is annoying, please stop

Vulçan FTW!
walther von stolzing Apr 15, 2016
When you run the Vulkan drivers, do they function well/normally with the desktop and other games, or do you have to switch back to other drivers when you're not testing Vulkan?

They're absolutely fine with everything else. (I'm using the 364.16 right now.)
walther von stolzing Apr 15, 2016
Now we just need more games supporting Vulcan. :D
this Vulkan typo is annoying, please stop

Though seriously, why is it spelled with a 'k'? The word obviously derives from the Latin "Vulcanus" -- the Roman equivalent of Hephaestus; and in Latin the letter 'c' accounts almost exclusively for the 'k' sound.

I mean, if the 'k' were at the beginning, I would've suspected intervention by the KDE e.V.; but that doesn't seem to be the case.
tuubi Apr 15, 2016
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Though seriously, why is it spelled with a 'k'? The word obviously derives from the Latin "Vulcanus" -- the Roman equivalent of Hephaestus; and in Latin the letter 'c' accounts almost exclusively for the 'k' sound.

I mean, if the 'k' were at the beginning, I would've suspected intervention by the KDE e.V.; but that doesn't seem to be the case.
Maybe for the same reason the organization is called Khronos group instead of Chronos group?
LinuxGamesTV Apr 15, 2016
When you run the Vulkan drivers, do they function well/normally with the desktop and other games, or do you have to switch back to other drivers when you're not testing Vulkan?

They're absolutely fine with everything else. (I'm using the 364.16 right now.)

364.16? Realy? Or did you mean 364.15?
Mountain Man Apr 15, 2016
Now we just need more games supporting Vulcan. :D
this Vulkan typo is annoying, please stop
Though seriously, why is it spelled with a 'k'? The word obviously derives from the Latin "Vulcanus" -- the Roman equivalent of Hephaestus; and in Latin the letter 'c' accounts almost exclusively for the 'k' sound.

I mean, if the 'k' were at the beginning, I would've suspected intervention by the KDE e.V.; but that doesn't seem to be the case.
I assume the word "Vulcan" is copyrighted by Paramount. But being a lifelong Star Trek fan, I habitually type "Vulcan" and have to consciously remember to type it as "Vulkan" in this context.
walther von stolzing Apr 15, 2016
When you run the Vulkan drivers, do they function well/normally with the desktop and other games, or do you have to switch back to other drivers when you're not testing Vulkan?

They're absolutely fine with everything else. (I'm using the 364.16 right now.)

364.16? Realy? Or did you mean 364.15?

No, .16; I think it came out on April 8th.
Magbed Apr 15, 2016
When you run the Vulkan drivers, do they function well/normally with the desktop and other games, or do you have to switch back to other drivers when you're not testing Vulkan?

They're absolutely fine with everything else. (I'm using the 364.16 right now.)

364.16? Realy? Or did you mean 364.15?

https://developer.nvidia.com/vulkan-driver
LinuxGamesTV Apr 15, 2016
...

...

...

https://developer.nvidia.com/vulkan-driver

Ahhhh ok. Why to hell, NVIDIA don't put this driver on the Downloadpage.

Grrr ^^


Last edited by LinuxGamesTV on 15 April 2016 at 1:25 pm UTC
walther von stolzing Apr 15, 2016
Maybe for the same reason the organization is called Khronos group instead of Chronos group?

Actually 'Chronos' is the Latinized form of a Greek word; and it could be spelt with a 'K' without conflicting with the original spelling.

In Greek the word is spelt with an 'X', not with a 'K'; but 'K' is a 'Greek' letter, so you could say it carries with it some of the original flavor.

Though, sure, it's probably a reference to the 'K' of the 'K'hronos group.


Last edited by walther von stolzing on 15 April 2016 at 1:27 pm UTC
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