Rocksmith 2014 (Remastered) (221680) Crash after login

[torvitas]

Compatibility Report

• Name of the game with compatibility issues: Rocksmith 2014 (Remastered)
• Steam AppID of the game: 221680

System Information

Computer Information:
    Manufacturer:  Unknown
    Model:  Unknown
    Form Factor: Desktop
    No Touch Input Detected

Processor Information:
    CPU Vendor:  GenuineIntel
    CPU Brand:  Intel(R) Core(TM) i7-6800K CPU @ 3.40GHz
    CPU Family:  0x6
    CPU Model:  0x4f
    CPU Stepping:  0x1
    CPU Type:  0x0
    Speed:  3800 Mhz
    12 logical processors
    6 physical processors
    HyperThreading:  Supported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Supported
    AES:  Supported
    AVX:  Supported
    CMPXCHG16B:  Supported
    LAHF/SAHF:  Supported
    PrefetchW:  Unsupported

Operating System Version:
    Linux 4.x (64 bit)
    Kernel Name:  Linux
    Kernel Version:  4.17.19-200.fc28.x86_64
    X Server Vendor:  Fedora Project
    X Server Release:  11906000
    X Window Manager:  GNOME Shell
    Steam Runtime Version:  steam-runtime-beta-release_2018-09-03

Video Card:
    Driver:  X.Org AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.25.0, 4.17.19-200.fc28.x86_64, LLVM 6.0.1)
    Driver Version:  4.4 (Compatibility Profile) Mesa 18.2.1
    OpenGL Version: 4.4
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 59 Hz
    VendorID:  0x1002
    DeviceID:  0x67df
    Revision Not Detected
    Number of Monitors:  3
    Number of Logical Video Cards:  1
    Primary Display Resolution:  2560 x 1440
    Desktop Resolution: 3610 x 2384
    Primary Display Size: 23.50" x 13.23" (26.97" diag)
                                            59.7cm x 33.6cm (68.5cm diag)
    Primary VRAM: 8192 MB

Sound card:
    Audio device: Realtek ALC1150

Memory:
    RAM:  64397 Mb

Miscellaneous:
    UI Language:  English
    LANG:  en_GB.UTF-8
    Total Hard Disk Space Available:  293135 Mb
    Largest Free Hard Disk Block:  28408 Mb
    VR Headset: None detected

Recent Failure Reports:

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
• [x] that I have checked whether there are updates for my system available.

Logs: where do I find the logs if I use flatpak?

Symptoms

After working around #812 (lib issues) by using flatpak the game crashes after logging in. (only happens if credentials are correct)

Reproduction

Start rocksmith, enter valid credentials, wait for about 10 seconds (depending on ubisoft servers I guess), see the game vanish.

[kisak-valve]

Hello @torvitas, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/812#issuecomment-427913262.