ValveSoftware
Deus Ex: Mankind Divided™ (337000)
deus ex mankind divided freeze and crashings steamplay protonhotfix
Computer Information:
Manufacturer: EVGA INTERNATIONAL CO.,LTD
Model: EVGA E672
Form Factor: Desktop
No Touch Input Detected
Processor Information:
CPU Vendor: GenuineIntel
CPU Brand: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
CPU Family: 0x6
CPU Model: 0x3a
CPU Stepping: 0x9
CPU Type: 0x0
Speed: 3900 MHz
4 logical processors
4 physical processors
Hyper-threading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
AVX2: Unsupported
AVX512F: Unsupported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Unsupported
AVX512VNNI: Unsupported
SHA: Unsupported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported
BMI1: Unsupported
BMI2: Unsupported
F16C: Supported
FMA: Unsupported
Operating System Version:
Ubuntu 24.04.2 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 6.11.0-21-generic
X Server Vendor: The X.Org Foundation
X Server Release: 12101011
X Window Manager: GNOME Shell
Steam Runtime Version: steam-runtime_0.20241127.109674
Client Information:
Version: 1741737356
Browser GPU Acceleration Status: Enabled
Browser Canvas: Enabled
Browser Canvas out-of-process rasterization: Enabled
Browser Direct Rendering Display Compositor: Disabled
Browser Compositing: Enabled
Browser Multiple Raster Threads: Enabled
Browser OpenGL: Enabled
Browser Rasterization: Enabled
Browser Raw Draw: Disabled
Browser Skia Graphite: Disabled
Browser Video Decode: Enabled
Browser Video Encode: Disabled
Browser Vulkan: Disabled
Browser WebGL: Enabled
Browser WebGL2: Enabled
Browser WebGPU: Disabled
Browser WebNN: Disabled
Video Card:
Driver: NVIDIA Corporation NVIDIA GeForce GTX 970/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 570.124.04
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x10de
DeviceID: 0x13c2
Revision Not Detected
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 20.04" x 11.26" (22.95" diag), 50.9cm x 28.6cm (58.3cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 4096 MB
Supported MSAA Modes: 2x 4x 8x 16x
Sound card:
Audio device: Realtek ALC889
Memory:
RAM: 11923 Mb
VR Hardware:
VR Headset: None detected
Miscellaneous:
UI Language: English
LANG: fi_FI.UTF-8
Total Hard Disk Space Available: 936737 MB
Largest Free Hard Disk Block: 598638 MB
Storage:
Number of SSDs: 1
SSD sizes: 1000G
Number of HDDs: 0
Number of removable drives: 0
deus ex mankind divided freeze and crashings steamplay protonhotfix Computer Information:
Use proton experimental
deus ex mankind protonhotfix error dont start protonhotfix
Issue transferred from https://github.com/ValveSoftware/Proton/issues/9199. @rix90121 posted on 2025-11-09T04:55:09:
deus ex mankind steamplay protonhotfix error dont start protonhotfix
Computer Information:
Manufacturer: EVGA INTERNATIONAL CO.,LTD
Model: EVGA E672
Form Factor: Desktop
No Touch Input Detected
Processor Information:
CPU Vendor: GenuineIntel
CPU Brand: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
CPU Family: 0x6
CPU Model: 0x3a
CPU Stepping: 0x9
CPU Type: 0x0
Speed: 3900 MHz
4 logical processors
4 physical processors
Hyper-threading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
AVX2: Unsupported
AVX512F: Unsupported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Unsupported
AVX512VNNI: Unsupported
SHA: Unsupported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported
BMI1: Unsupported
BMI2: Unsupported
F16C: Supported
FMA: Unsupported
Operating System:
Ubuntu 24.04.3 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 6.14.0-35-generic
X Server Vendor: The X.Org Foundation
X Server Release: 12101011
X Window Manager: GNOME Shell
Steam Runtime Version: steam-runtime_1.0.20250723.149234
Client Information:
Version: 1759461205
Browser GPU Acceleration Status: Enabled
Browser Canvas: Enabled
Browser Canvas out-of-process rasterization: Enabled
Browser Direct Rendering Display Compositor: Disabled
Browser Compositing: Enabled
Browser Multiple Raster Threads: Enabled
Browser OpenGL: Enabled
Browser Rasterization: Enabled
Browser Raw Draw: Disabled
Browser Skia Graphite: Disabled
Browser Video Decode: Enabled
Browser Video Encode: Disabled
Browser Vulkan: Disabled
Browser WebGL: Enabled
Browser WebGL2: Enabled
Browser WebGPU: Disabled
Browser WebNN: Disabled
Video Card:
Driver: NVIDIA Corporation NVIDIA GeForce GTX 970/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 580.95.05
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x10de
DeviceID: 0x13c2
Revision Not Detected
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 20.04" x 11.26" (22.95" diag), 50.9cm x 28.6cm (58.3cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 4096 MB
Supported MSAA Modes: 2x 4x 8x 16x
Sound card:
Audio device: Realtek ALC889
Memory:
RAM: 11924 Mb
VR Hardware:
VR Headset: None detected
No VR configuration with trackers detected
Most number of trackers in a session: 0
Miscellaneous:
UI Language: English
LANG: fi_FI.UTF-8
Total Hard Disk Space Available: 936737 MB
Largest Free Hard Disk Block: 793405 MB
Storage:
Number of SSDs: 1
SSD sizes: 1000G
Number of HDDs: 0
Number of removable drives: 0
Hey, been playing this game for about a week now, using Experimental as recommended. My rig has 16GB RAM, but I'm constantly having system freezes occur due to that being completely consumed. Wondering if there's a leak, or a bad driver?
Edit: Also experiencing loading screens where loading just stops near 90% and then hangs indefinitely. Could be my machine there, unclear.
@crowspin experimental isn't the default for this game, but leaving that aside. Regarding the memory leak, have you noticed a pattern on it? does it grow from simply being ingame? only when switching areas? what game settings are you using?
@simifor Using DX11 Ultra preset, hangs seem to occur most frequently when entering or exiting menus: either when pausing/unpausing or accessing/exiting inventory. Can also happen if I simply leave game unpaused and unattended for a few minutes however, when I begin to interact with the game again. Main concern imo is graphics driver, but not knowing much about the internals here I'm not sure that makes sense because the GPU has it's own memory space. Could be duplicating resources and failing to free them?
Apologies about 'experimental', by recommended I was referring to above comment and what I've seen on ProtonDB (yes I know not associated.) Could you confirm the recommended proton version for this game so I can see if issue persists?
@crowspin Well, I wouldn't say there's a recommended proton version right now, but steam deck currently defaults to proton 9, but this is due to it being set to use proton stable back when it got its verification badge in 2022 which at the time was proton 7 (but automatically goes to a newer proton when a new stable version is released).
Regarding game freezes, would you say just spamming the menu or inventory would be enough to get the issue to trigger fast? If so, how long does it roughly take on your end?
@simifor Okay so still on experimental I see before I launch the game I'm at 3.2GiB utilization. Once launched and resting at the main menu I'm at 8.3GiB. Once the save is loaded and I'm standing in the road I'm at 12.2GiB, and after spamming the pause menu for about a minute I get to 14.4GiB utilization. Doesn't actually get worse than that and while choppy at first the pausing/unpausing becomes smooth abiut halfway through. I then tried to walk around Prague, watching how the game was playing, only for my system to close both the game and steam. I assume that's happened because they look broken/malicious to whatever watchdog Debian uses?? Not the first time it's happened. Will try switching to Proton 7 to see if it's better/different.
Using Proton 7 I sit at 6.6GiB utilization on the Main Menu. Both after waiting a few seconds after loading and after spamming menus for a full minute utilization holds steady on 8.4GiB. Aside that, gameplay is signifigantly smoother overall on Proton 7 too, so mountain of thanks for that suggestion.
Edit: oh no its not smooth walking is so choppy now. this feels like graphics lag though so I'm just going to tweak settings for a minute here Switching to DX12 High, in game I'm at 14.3GiB. I'm gonna play a bit and see if that's a problem.
Proton 7 eventually gave out because of it's high idle util. in DX12. Proton 9 with DX12 High preset idles ingame at 9.9GiB utilization and is the best experience so far. That's where I'm staying for play, let me know if there're any other tests you'd like from me.
@crowspin the game being killed, assuming you're running out of memory, is done on purpose by your system to avoid the system deadlocking from running out of memory. You can check if this is the case by running sudo dmesg on your terminal after the crash happens, the information should be towards the bottom of the log.
Spamming escape/inventory didn't seem to meaningfully increase memory usage on my end. And neither did simply idling with the game in the foreground, however alt tabbing and leaving the game in the background seems to increase memory usage, at least on experimental. Can you confirm that by idling, you meant running the game in the background?
By idling I meant leaving the game unpaused in the foreground, with 'focus.' As if I had started the game, loaded a save, pressed 'A' to continue, and the walked away from the computer.
@crowspin ok, I'll take another look tomorrow. Just to be clear, experimental also had memory grow by idling just as you saw with proton 7, right? and can you share your save file just in case behavior depends on location
@simifor Experimental had idle memory grow, Proton 7's usage was stable. 7's increase came when I switched from DX11 to DX12, and the trade there was that DX11 was experiencing severe graphical stutters. DX12 was a smooth experience, but crashed eventually because even though it's memory use was stable, it's base use was so high that my system killed it if it even moved an inch. That said, it was about an hour before it was killed.
Experimental is where the really odd behaviour is at, Proton 7 was just inconvenient/inadequately optimized for my system's capabilities. And Proton 9 has been a dream.
I believe this is my save data? Had to tarball it so it could be uploaded, found it at the following location:
~/.steam/steam/steamapps/compatdata/337000/pfx/drive_c/Program Files (x86)/Steam/userdata/xxxxx/337000/323347682
@crowspin sorry I missed this, the save file is in the native steam folder.
~.local/share/Steam/userdata/xxxx/337000/remote/
@simifor Hey, sorry I've been away for a bit working on my HASS installation. Here's the save file from when we were talking before, as well as a file that seems to include my graphics settings? Just for good luck.
@crowspin hmm so the save wasn't working originally, looks like you can't just use high slot ones if you haven't used that many, but renaming it I could get the game to pikc it up. So I am in front of a bunch of buildings and after an hour idling with proton experimental ram usage grew from 22.1 GB (system total) to 23.3 GB. Does memory usage increase faster on your end? or is it that when you launch the game you don't have much memory to spare?
This was dx12 with ultra preset.
@simifor Maybe my understanding of Proton and its natural operation is lacking, but 22-23GB of RAM use seems astronomically too high for a game from a decade ago. Especially when in Proton 9 DX12-Ultra I see an average of 10GB dedicated to the game. My system only has 16GB RAM, so if the game needs 22, it's no wonder my system is failing to run it. Suppose it comes down to the port from Xbox to PC having been poorly optimized as I've heard before.. Thanks for your time and your help mate.
That's memory usage for the whole system, not just the game. What really matters here is the delta of 1.3GB from idling an hour, which is lower than what you're seeing.
Update: Took a better look. Ran the game on windows to establish a baseline before retesting on linux checking specifically for the memory usage of the game. And it apparently used more memory on windows. With ultra preset, dx12, and 2k resolution at the buildings of your save file. On windows 10 it was taking 5.1GB of ram after loading the save, and 5.5 after an hour of idling. On arch I saw 4.1GB after loading the save, and 4.2GB after an hour.
Can you give more information about your setup? your gpu, driver version and linux kernel version?
On Sat, Nov 29, 2025, 9:50 PM crowspin @.***> wrote:
crowspin left a comment (ValveSoftware/Proton#8576) https://github.com/ValveSoftware/Proton/issues/8576#issuecomment-3592100462
@simifor https://github.com/simifor Maybe my understanding of Proton and its natural operation is lacking, but 22-23GB of RAM use seems astronomically too high for a game from a decade ago. Especially when in Proton 9 DX12-Ultra I see an average of 10GB dedicated to the game. My system only has 16GB RAM, so if the game needs 22, it's no wonder my system is failing to run it. Suppose it comes down to the port from Xbox to PC having been poorly optimized as I've heard before.. Thanks for your time and your help mate.
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