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Two bits of Valve news to cover tonight: SteamOS gains a new beta version and it looks like Steam Play Proton will be getting an update soon.

Let's start with SteamOS, Valve's own-brand Linux distribution, mainly aimed at living-room console-style boxes for a large screen experience. It's still going and the 2.190 beta version is now out for those who've chosen to live on the edge with the brewmaster_beta. It's not a big one, with it including mainly security updates and firmware-nonfree updates. Looks like Timothee "TTimo" Besset (formely id Software, helped to port Rocket League to Linux - see my previous interview) is currently keeping it going.

SteamOS 2.189 was also pushed out for everyone on April 18th, which included mesa 18.3.4, nvidia-graphics-drivers 415.27 and more security updates.

As for Steam Play Proton, it looks like the 4.2 series is getting another version, going by SteamDB it's having some internal testing. Not surprising though, with the last Steam Play update being nearly a month old now. With today's release of Rage 2 on Steam not currently working with Steam Play, a Valve developer did say "there's a build that fixes it in the pipeline" so hopefully it will be out by the end of the week.

Update (only a few minutes later): Well, that Steam Play update came sooner than expected. Steam Play Proton 4.2-4 is out! The changes included in this are:

  • Fix crash on launch for RAGE 2. (requires Mesa development builds on AMD)
  • Update DXVK to v1.1.1.
  • Improve Vulkan support for the new No Man's Sky Vulkan build.
  • Better icons in some window managers.
  • Fix occasional stuck Wine process when upgrading Proton version.
  • Fix controller detection for Yakuza Kiwami and Telltale games.
  • Fix terrain generation in Space Engineers.
  • Fix for Flower failing to launch.

It's also not currently noted, but Proton also updates to "FAudio 19.05 and now uses the official X3DAudio/XAPOFX libraries for 64-bit games by default" according to Ethan Lee on Twitter.

For those interested, Proton's build system was also updated and it now supports libvirt/qemu in addition to Vagrant's VirtualBox. This was mentioned in a later commit on the GitHub.

The changelog for Steam Play can be found here as usual. Top work from Valve and CodeWeavers.

Hat tip to mphuZ. Note: The article title and content was updated since Steam Play was updated soon after publishing.

Article taken from GamingOnLinux.com.
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39 comments
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Mohandevir 15 May 2019 at 2:20 pm UTC
Horimight be useful to write an article on the current state of SteamOS and its future. what we know, what we can expect, and what are the possibilities. i, for one, am in the dark. i really don't know what's going on with it.

and i'm interested, since I plan to install it once I get a TV, so I can boot straight into that when i wanna play from the couch, without the need for a keyboard. but if there is no future for it, or it performs badly, etc, then i will have to find alternatives

It's not much, but I asked TTimo if something could be done for the in-home streaming performance issues with a SteamOS host (lots of stuttering).

The answer was:
"As far as Valve supported, I'm afraid compositor work on brewmaster isn't very high on the priorities list right now "

Bold is on me.

Maybe something is brewing for Clockwerk, in this regard and it might also mean that they are working on it (as Clockwerk), behind closed doors? Sorry for what I just did.


Last edited by Mohandevir at 15 May 2019 at 2:28 pm UTC
F.Ultra 15 May 2019 at 2:23 pm UTC
The inclusion of DXVK 1.1.1 is kind of a bummer since it requires VK_EXT_host_query_reset without plummeting performance in some games and that is not available in any of the stable versions of Mesa yet.

For me Vampyr just took a nose dive performance wise when Steam updated Proton to 4.2-4 today.
x_wing 15 May 2019 at 4:55 pm UTC
F.UltraThe inclusion of DXVK 1.1.1 is kind of a bummer since it requires VK_EXT_host_query_reset without plummeting performance in some games and that is not available in any of the stable versions of Mesa yet.

For me Vampyr just took a nose dive performance wise when Steam updated Proton to 4.2-4 today.

Remember that Steam clients allows to select specific Proton versions for each game (at least this will be a solution for game that were working fine). But yeah, would be nice to be able to easily select an specific DXVK for each Proton version.


Last edited by x_wing at 15 May 2019 at 4:55 pm UTC
lejimster 15 May 2019 at 6:43 pm UTC
F.UltraThe inclusion of DXVK 1.1.1 is kind of a bummer since it requires VK_EXT_host_query_reset without plummeting performance in some games and that is not available in any of the stable versions of Mesa yet.

For me Vampyr just took a nose dive performance wise when Steam updated Proton to 4.2-4 today.

I've decided to stay on mesa-git. For the most part it's been stable and while dxvk/d9vk etc are being developed it works best with them. Maybe when these projects mature and settle down stable will be a good option, but for right now..
skinnyraf 15 May 2019 at 8:19 pm UTC
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To celebrate, I bought Hellblade at 50% only to face a "DX11 level 10 required" error on a supposedly Platinum title...
massatt212 15 May 2019 at 10:49 pm UTC
does paladins still work on Proton or Updates on EAC stop it ?
Dunc 16 May 2019 at 12:28 am UTC
I see a new Steam client beta just dropped, with this interesting note:

QuoteAdded support for developers and Valve testing specifying default Proton configuration options for games even if they're not yet white-listed
Nice.
TheRiddick 16 May 2019 at 1:14 am UTC
seems like a big update happened to steam just recently, now games get pre shader cache downloads and opengl and vulkan icons?
Nod 16 May 2019 at 4:32 am UTC
QuoteLooks like Timothee "TTimo" Besset (formely id Software, helped to port Rocket League to Linux - see my previous interview) is currently keeping it going.

Can you clarify what you mean by this? Is TTimo contracting to valve to maintain SteamOS? What do you mean by "looks like", github commits, tweets, something else?

Thanks.
Nod 16 May 2019 at 5:08 am UTC
NodCan you clarify what you mean by this? Is TTimo contracting to valve to maintain SteamOS? What do you mean by "looks like", github commits, tweets, something else?

Answering my own question, this probably: https://steamcommunity.com/groups/steamuniverse/discussions/search/?author=10334202
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