Portal 2 Bug: Game slows after time when playing pti, then crashes partially with processes in the background.

[elektr1kOS]

Game slows with 1 second freezes, and gets more the more I play, until it crashes with no error, and some processes still running.

TotallyKenzo

Computer information

Note

This takes place on Windows 11, using a fresh install of Portal 2.
!!!! UPDATE: Game only starts to lag when I boot up puzzlemaker. !!!!

This is my system specifications, pulled from Steam.

Computer Information:

Manufacturer: HP
Model: HP ProBook x360 435 G8 Notebook PC
Form Factor: Laptop
Touch Input Detected

Processor Information:

CPU Vendor: AuthenticAMD
CPU Brand: AMD Ryzen 5 5600U with Radeon Graphics
CPU Family: 0x19
CPU Model: 0x50
CPU Stepping: 0x0
CPU Type: 0x0
Speed: 2296 MHz
12 logical processors
6 physical processors
Hyper-threading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Supported
SSE42: Supported
AES: Supported
AVX: Supported
AVX2: Supported
AVX512F: Unsupported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Unsupported
AVX512VNNI: Unsupported
SHA: Supported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported

Operating System Version:

Windows 11 (64 bit)
NTFS: Supported
Crypto Provider Codes: Supported 311 0x0 0x0 0x0

Video Card:

Driver: AMD Radeon(TM) Graphics
DirectX Driver Name: aticfx32.dll
Driver Version: 31.0.21905.1001
DirectX Driver Version: 31.0.21905.1001
Driver Date: 10 17 2023
OpenGL Version: 4.6
Desktop Color Depth: 32 bits per pixel
Monitor Refresh Rate: 60 Hz
DirectX Card: AMD Radeon(TM) Graphics
VendorID: 0x1002
DeviceID: 0x1638
Revision: 0xc2
Number of Monitors: 2
Number of Logical Video Cards: 2
No SLI or Crossfire Detected
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 3792 x 2160
Primary Display Size: 23.54" x 13.23" (26.97" diag), 59.8cm x 33.6cm (68.5cm diag)
Primary Bus Type Not Detected
Primary VRAM: 512 MB
Supported MSAA Modes: 2x 4x 8x

Sound card:

Audio device: Headphones (Realtek(R) Audio)

Memory:

RAM: 15681 Mb
VR Hardware:
VR Headset: None detected
### Miscellaneous:
UI Language: English
Media Type: Undetermined
Total Hard Disk Space Available: 2151293 MB
Largest Free Hard Disk Block: 390517 MB
OS Install Date: Aug 22 2023
Game Controller: None detected
MAC Address hash: 967a3448960190619502b21a2ff5fb672ab5e8a4

Storage:

Disk serial number hash: c750d1cf
Number of SSDs: 1
SSD sizes: 256G
Number of HDDs: 1
HDD sizes: 2000G
Number of removable drives: 0

Explanation

First boot up

The game boots up fines, although some audio distortion can be heard from the tiles in the UI, along with miniscule visual glitches.
After that, the game works mostly fine. I'm pretty sure this is a time-based thing, so letting it sit would probably eventually crash it.

Playing the game

The game seems perfectly fine, until after a minute or two goes by, which is when the game starts to freeze and glitch. This is usually minor.

5 minutes in

This is when full freezes for at least a second start. The notorious Source sound loop also plays during these periods.
After 30 seconds, full freezes of upward of 10 seconds happen.

Crash

Then, it crashes, silent, instant, no error crash. After this, some parts of the engine stay open, meaning that Portal 2 can no longer re boot until a restart. I don't know why this happens.

How to Replicate

This crash happens every time I open Portal 2, so I don't know where it originated from. It also usually comes and goes, usually for about a 1 week. Which means, I don't know how this could be replicated.

Summary

1. Game opens fine.
2. Minor bugs at the beginning.
3. Glitches get worse over time.
4. Full freezing begins.
5. Crash.
6. Background processes are still open, forced to restart.