NVidia PhysX defaulting to CPU, cannot set to GPU.

[StrikerTheHedgefox]

Seems KF2 as of late has an issue where it no longer is able to use the GPU for PhysX, even if you set bDisablePhysXHardwareSupport=False. The GPU is properly selected in the NVidia control panel as well, but it still just resorts to using the CPU. This causes insane performance degradation when using Flex.

Please fix it, this issue started around the time the game came out of Early Access.

[Glocky]

This seems to be the issue I am having too.

[iecoie]

Well .. I had experienced similar problem - but only till I selected "ALL" in the "CUDA- GPUs" section in the Nvidia control panel. I have gtx750 as a physx/apex dedicated card .. it used to work in KF2 when choosed as an exclusive "cuda-gpu" accelerator. Now only way to turn on higher settings of apex option is to select "both" cards (gtx750 as well as my main gtx980). After this, everything works as usual.

[StrikerTheHedgefox]

I only have one GPU, so that doesn't apply to me. It's already set to "all".

[Rohaq]

Game performance issues and crashes with Gibs enabled

Category: Crash, specific to hardware - Related to PhysX, most likely.

Reproducibility:
With Gibs enabled, generally within a few matches across various official maps during action. May be map specific. May be specific to GTX 1070 as other user has reported elsewhere.

Summary/ Description:
I've had consistent issues with the game slowing to a crawl, and occasionally crashing whenever I have Gibs enabled. Disabling Gibs results in all performance issues disappearing, and the game remains stable at otherwise high/ultra settings.

By the looks of things, this is happening to at least one other user, who also happens to be using the same video card as me: A Geforce GTX 1070: https://steamcommunity.com/app/232090/discussions/1/215439774876196572/

The game usually runs fine for a period of time. Sometimes the game performance drops like a rock during action scenes resulting in gibs. This either resulting in screen redraws as far as 10 seconds apart, or the game crashing out entirely.

Settings:
Resolution: 2560x1440
Display Mode: Windowed Borderless
Ambient Occlusion: NVIDIA HBAO+
Anti-aliasing: FXAA
Bloom: High
Character Detail: Ultra
Depth of Field: On
Environment Detail: Ultra
FX: Ultra
Lens Flares: On
Light Shafts: On
NVIDIA FleX: Gibs
Realtime Reflections: On
Shadow quality: Ultra
Texture Filtering: 16x Anisotropic
Texture Resolution: Ultra
Volumetric Lighting FX: On
NVIDIA Multi-Frame Sampled Anti-Aliasing: Off

[StrikerTheHedgefox]

Bumping this again, because it seems Tripwire hasn't done a ♥♥♥♥♥♥♥♥ thing about this.

[StrikerTheHedgefox]

Am I going to have to be a pain in the ąss about this for anything to get done about it?

[-Dare Devil/x/]

-Did you try uninstalling and re-installing physx?

[StrikerTheHedgefox]

Multiple times. Platform is Windows 10 x64 (Creator's Update), if it helps.

[Abyss]

Same thing with me. My game used to run ultra 60 fps but now constantly freezes and gets 30 fps regardless of what settings, low or ultra.

[Rubik748]

Originally posted by SM Striker:

Seems KF2 as of late has an issue where it no longer is able to use the GPU for PhysX, even if you set bDisablePhysXHardwareSupport=False. The GPU is properly selected in the NVidia control panel as well, but it still just resorts to using the CPU. This causes insane performance degradation when using Flex.

Please fix it, this issue started around the time the game came out of Early Access.

It exists as far back as Early Access or when it appeared on Steam store page. There have been many threads about this quite a few months back. Later threads have been misleading suggesting this is a newer issue and was not always present. They are lieing or didn't notice something. At this time I had noticed that the Nvidia Control Panel settings had been altered to use CPU and or SLI set to off without me noticing. Specifically the Nvidia SLI options. Yet the other settings had not been touched or altered. This was after 1 or 2 Nvidia updates. Not the last one that came out but the ones before then.

Originally posted by SM Striker:

Am I going to have to be a pain in the ąss about this for anything to get done about it?

I see a court case being put forward that involves Tripwire, Nvidia and the publishers. I'd be asking why despite the advertised Nvidia stuff, before and after release, beta, early access, and then official release, that all the mentioned and demonstrated Nvidia FLex stuff, is not there. And why they did not say why or warn about this.

More specifically why the body bits are not there and not kickable despite what was shown in those videos.
Why despite 1 or 2 "recommended" nvidia graphics cards, the game does not use the gpu(s) for PhysX.
A typical argument may ensue going on about the difference between beta, early access, and "official" release. But then one would remind them of what they all advertised.

I'd also be asking why the "news" outlets involved did not admit this problem exists. Of course I already know why. They are not really "PC Gamer"s. Still, questions must be asked and the excuses will be given. Or they'll shut up.

Also how other games that used PhysX were also not working as they should. Game examples will then be given - Cryostasis, Metro2033, Last Light, Then the excuses like they were not behind those games. At this point its all about Nvidia because they have always been advertising that sleasy slogan "the way its meant to be played".

So why doesn't it Nvidia?


Actually its recommended a lot more effort be put into exposing these buggers. A whingey, whiney comment like this isn't gonna solve the problem.

[Cornelius]

Originally posted by Rohaq:

Game performance issues and crashes with Gibs enabled

Category: Crash, specific to hardware - Related to PhysX, most likely.

Reproducibility:
With Gibs enabled, generally within a few matches across various official maps during action. May be map specific. May be specific to GTX 1070 as other user has reported elsewhere.

Summary/ Description:
I've had consistent issues with the game slowing to a crawl, and occasionally crashing whenever I have Gibs enabled. Disabling Gibs results in all performance issues disappearing, and the game remains stable at otherwise high/ultra settings.

By the looks of things, this is happening to at least one other user, who also happens to be using the same video card as me: A Geforce GTX 1070: https://steamcommunity.com/app/232090/discussions/1/215439774876196572/

The game usually runs fine for a period of time. Sometimes the game performance drops like a rock during action scenes resulting in gibs. This either resulting in screen redraws as far as 10 seconds apart, or the game crashing out entirely.

Settings:
Resolution: 2560x1440
Display Mode: Windowed Borderless
Ambient Occlusion: NVIDIA HBAO+
Anti-aliasing: FXAA
Bloom: High
Character Detail: Ultra
Depth of Field: On
Environment Detail: Ultra
FX: Ultra
Lens Flares: On
Light Shafts: On
NVIDIA FleX: Gibs
Realtime Reflections: On
Shadow quality: Ultra
Texture Filtering: 16x Anisotropic
Texture Resolution: Ultra
Volumetric Lighting FX: On
NVIDIA Multi-Frame Sampled Anti-Aliasing: Off

I've actually had issues with PhysX with overclocks that are otherwise stable. Try disabling your overclock or underclocking and see if that works

[Revalopod]

Will this ever be fixed?

[Molly]

I think we would need more info if it is still happening to people. I haven't ever experienced this and have no idea what spec are from those that is does happen to. Specs and driver info would be beneficial to use to investigate.

[Revalopod]

Originally posted by TWMolly:

I think we would need more info if it is still happening to people. I haven't ever experienced this and have no idea what spec are from those that is does happen to. Specs and driver info would be beneficial to use to investigate.

Geforce driver 391.24
Physx driver 9.17.0524

Specs:
Gtx 1070
i5-6500 @ 3201 Mhz, 4 cores, 4 logical processors
16384MB ddr4 ram
Win 10 education 10.0.16299 Version 1709
OS Build 16299.371
DirectX version 12

[Rubik748]

Originally posted by TWMolly:

I think we would need more info if it is still happening to people. I haven't ever experienced this and have no idea what spec are from those that is does happen to. Specs and driver info would be beneficial to use to investigate.

Edited for my question and accuracy;

What specs and driver information do, or did, you use?


v--- My specs and drivers ---v

1st PC specs

Windows 7 home premium. Every update since whenever.

Intel core i7 3770. Later used K version of this cpu. No manual overclocking.

16gb ram DDR3.

gtx 980. No manual overclocking.
Every Nvidia driver since 3rd July 2016. Also ran 2 in SLI. Made the game run worse and never improved over time or updates.

1tb hard disc drive. Later used a solid state disc drive.

Monitor resolution: 1920x1080p, refresh rate 60Hz. Later on 120Hz with a newer monitor.

2nd PC specs

Windows 10 professional. Every update since whenever.
Version: 1709.
OS Build: 16299.371.

Intel core i7 6700k. No manual overclocking. 4008Mhz.

16gb ram DDR4.

gtx 1080. No manual overclocking.
Every Nvidia driver since 3rd July 2016. Also ran 2 in SLI. Again SLI made, still makes, the game run worse.

Driver version: 23.21.13.8859.
DirectX driver version: 23.21.13.8859.
Driver date: 12 5 2017.
OpenGL version: 4.6.

1tb solid state disc drive.

Monitor resolution: 1920x1080p, refresh rate 120Hz.