Your system information

• Steam client version (build number or date): Nov 26, 2018
• Distribution (e.g. Ubuntu): Ubuntu 18.04
• Opted into Steam client beta?: No
• Have you checked for system updates?: No

Please describe your issue in as much detail as possible:

SteamVR does not start. I see in /tmp/dumps/crash_*.dmp this error:

Assert( Assertion Failed: BFileExists( /home/freebullets/.steam/steam/steamapps/common/SteamVR/bin/linux32/vrpathreg ) failed ):vr/vrmanager.cpp:208"

I see it does exist at .steam/steam/steamapps/common/SteamVR/bin/linux64/vrpathreg.

$ dpkg -l steam'*'
Desired=Unknown/Install/Remove/Purge/Hold                                      
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend 
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)                     
||/ Name           Version      Architecture Description                       
+++-==============-============-============-================================= 
ii  steam:i386     1:1.0.0.54+r i386         Valve's Steam digital software de 
un  steam-devices  <none>       <none>       (no description available)
ii  steam-installe 1.0.0.54+rep all          Installer for Valve's Steam digit
rc  steam-launcher 1.0.0.53     all          Launcher for the Steam software d
un  steam64        <none>       <none>       (no description available)

$ dpkg -l '*nvidia*' | grep ii
ii  libnvidia-cfg1-390:amd64         390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA binary OpenGL/GLX configuration library
ii  libnvidia-common-390             390.87-0ubuntu0~gpu18.04.1 all          Shared files used by the NVIDIA libraries
ii  libnvidia-compute-390:amd64      390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA libcompute package
ii  libnvidia-compute-390:i386       390.87-0ubuntu0~gpu18.04.1 i386         NVIDIA libcompute package
ii  libnvidia-decode-390:amd64       390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA Video Decoding runtime libraries
ii  libnvidia-decode-390:i386        390.87-0ubuntu0~gpu18.04.1 i386         NVIDIA Video Decoding runtime libraries
ii  libnvidia-encode-390:amd64       390.87-0ubuntu0~gpu18.04.1 amd64        NVENC Video Encoding runtime library
ii  libnvidia-encode-390:i386        390.87-0ubuntu0~gpu18.04.1 i386         NVENC Video Encoding runtime library
ii  libnvidia-fbc1-390:amd64         390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-fbc1-390:i386          390.87-0ubuntu0~gpu18.04.1 i386         NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-gl-390:amd64           390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  libnvidia-gl-390:i386            390.87-0ubuntu0~gpu18.04.1 i386         NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  libnvidia-ifr1-390:amd64         390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA OpenGL-based Inband Frame Readback runtime library
ii  libnvidia-ifr1-390:i386          390.87-0ubuntu0~gpu18.04.1 i386         NVIDIA OpenGL-based Inband Frame Readback runtime library
ii  nvidia-390                       390.87-0ubuntu0~gpu18.04.1 amd64        Transitional package for nvidia-driver-390
ii  nvidia-compute-utils-390         390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA compute utilities
ii  nvidia-dkms-390                  390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA DKMS package
ii  nvidia-driver-390                390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA driver metapackage
ii  nvidia-kernel-common-390         390.87-0ubuntu0~gpu18.04.1 amd64        Shared files used with the kernel module
ii  nvidia-kernel-source-390         390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA kernel source package
ii  nvidia-prime                     0.8.8.2                    all          Tools to enable NVIDIA's Prime
ii  nvidia-settings                  415.25-0ubuntu0~gpu18.04.1 amd64        Tool for configuring the NVIDIA graphics driver
ii  nvidia-utils-390                 390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA driver support binaries
ii  xserver-xorg-video-nvidia-390    390.87-0ubuntu0~gpu18.04.1 amd64        NVIDIA binary Xorg driver