[Game hang] Sackboy - A big adventure

[shelterx]

Sackboy - A big adventure suffers from random crashes (UE4 fatal error) and hangs, it seems to be somewhat related to when RT reflections is turned on.
A guaranteed hang is in the second world on the Water Predicament level, it always hangs during the first cutscene. But if I turn off RT reflections, it passes the cutscene.

I tried with PROTON_HIDE_NVIDIA_GPU=1, it made no difference.

• GPU: RTX 4070
• Driver: 565.77
• Wine version: proton-cachyos
• VKD3D-Proton version: 0f5e58d also tried v2.13.

A full proton log was not possible since it just kept growing and growing before even loading into the game.
vkd3d.log

Nothing related to the hang is found in dmesg.

UPDATE:
Going back to the first world again, and reenter the spaceship from there also causes the game to hang.
What's weird is that I played with RT on for several levels after the Water Predicament level and it seems to work fine (apart from the random UE4 Fatal Error crashes which actually also happens in Windows too), I'm wondering if it sometimes hits some shader that crashes with RT.
However, it works sometimes and sometimes it does not, for example, it got past the cutscene i mentioned above a few times now.

This is what the game shows when it hangs (not the same as the UE4 Fatal error dialog).

[shelterx]

I'm starting to wonder if the game is just buggy, because what I thought was reproducible, really isn't all the time, it's very random. It shows mostly under proton tho'.
When the "render hang" occurs tho' (dialog box above) it sometimes can jump a few frames if you alt-tab...

I've tried every trick I know of, nothing seems to help to get rid of the hangs.

Update:
Game seems to run much better after I installed the "Remove Epic Online Services" mod. It can still hang occasionally but way way less than before. I played for 3-4 hours without hangs or crashes.

[simifor]

I played up to water predicament and in my way to there I didn't find any crash nor hang with my amd card, so I couldn't reproduce the issue. I did run into 3 smaller issues, but they also happen on windows, namely the stuttery logos when you start the game, an illumination issue around sackboy after you fall off "ready yeti go", and some sort of weird shadow applied on top of sackboy during the first world boss cinematics

[shelterx]

@simifor Thanks!
May I ask what GPU and driver you use? Did you have RT on?

[simifor]

rx 6600 with mesa 24.3.4, ray tracing was enabled during my attempts to enter the spaceship and a couple of traversals in the water level

…

On Thu, Feb 6, 2025, 2:39 PM shelterx ***@***.***> wrote: @simifor <https://github.com/simifor> Thanks! May I ask what GPU and driver you use? Did you have RT on? — Reply to this email directly, view it on GitHub <#2298 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQZQ4EGF24PTCJX63MGRB7T2OOT67AVCNFSM6AAAAABVR6ZXG6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMNBQG4YDMMJXHA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[shelterx]

Ok, then we know it’s not happening on AMD. It’s possible it’s an Nvidia issue then.
I disabled the low latency2 extension in vkd3d, but that didn’t help.
Nor did hiding the Nvidia GPU.

[shelterx]

@HansKristian-Work I think it's a game bug but any suggestion what I could do to provide better logs? A normal vkd3d-proton trace doesn't show much. Would breadcrumbs help?