Keybindings and other certain letters/numbers not displaying

[Takios]

Hello,

most letters show up fine, but some seem to missing. The missing include the keybindings (in the keybinding menu and in the popups while playing) or the number above the doors in the co-op chamber or the number for the Steps taken display in the co-op chamber.

Example: https://steamuserimages-a.akamaihd.net/ugc/803242059814670046/78D1A23A13E2DD756BFA66AB9F95A1E124EF131D/

Tried solutions:

• https://wiki.archlinux.org/index.php/Steam/Game-specific_troubleshooting#Portal_2
• https://support.steampowered.com/kb_article.php?ref=9081-TPDC-8813 (except installing Tahoma)
• https://steamcommunity.com/app/400/discussions/0/412446292775908119/

System Information:

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

Processor Information:
    CPU Vendor:  AuthenticAMD
    CPU Brand:  AMD Ryzen 5 1600X Six-Core Processor           
    CPU Family:  0x17
    CPU Model:  0x1
    CPU Stepping:  0x1
    CPU Type:  0x0
    Speed:  3600 Mhz
    12 logical processors
    6 physical processors
    HyperThreading:  Supported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Supported
    SSE41:  Supported
    SSE42:  Supported
    AES:  Supported
    AVX:  Supported
    CMPXCHG16B:  Supported
    LAHF/SAHF:  Supported
    PrefetchW:  Unsupported

Operating System Version:
    "openSUSE Tumbleweed" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  5.0.13-1-default
    X Server Vendor:  The X.Org Foundation
    X Server Release:  12004000
    X Window Manager:  KWin
    Steam Runtime Version:  jenkins-steam-runtime-beta-release_0.20190320.2

Video Card:
    Driver:  X.Org AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.27.0, 5.0.13-1-default, LLVM 7.0.1)
    Driver Version:  4.5 (Compatibility Profile) Mesa 19.0.3
    OpenGL Version: 4.5
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 143 Hz
    VendorID Not Detected
    DeviceID Not Detected
    Revision Not Detected
    Number of Monitors:  2
    Number of Video Cards Not Detected
    Primary Display Resolution:  2560 x 1440
    Desktop Resolution: 6400 x 2160
    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: ATI R6xx HDMI

Memory:
    RAM:  15757 Mb

Miscellaneous:
    UI Language:  English
    LANG:  de_DE.UTF-8
    Total Hard Disk Space Available:  915265 Mb
    Largest Free Hard Disk Block:  712446 Mb
    VR Headset: None detected

Recent Failure Reports:

[pseiler]

I can verify this. Tried a lot but nothing worked. Using openSUSE x86_64 with i3 as window manager. Steam is from my package manager.