I have a MvM server running on a linux server on my network. In windows I can see it under the LAN tab in the server browser, but not in linux. It does show in my history and I can connect to it through that or using the connect command from the command line.

Steam info:

Processor Information:
    Vendor:  AuthenticAMD
    Speed: 2100 Mhz
    2 logical processors
    2 physical processors
    HyperThreading:  Unsupported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Unsupported
    SSE42:  Unsupported

Network Information:
    Network Speed:  

Operating System Version:
    "openSUSE 12.2 (x86_64)" (64 bit)
    Kernel Name:  Linux
    Kernel Version:  3.4.28-2.20-desktop
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11203000
    X Window Manager:  KWin
    Steam Runtime Version:  steam-runtime-release-i386_2013-02-27

Video Card:
    Driver:  ATI Technologies Inc. ATI Radeon HD 5700 Series 

    Driver Version:  4.2.12002 Compatibility Profile Context 9.002
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 59 Hz
    VendorID Not Detected
    DeviceID Not Detected
    Number of Monitors:  1
    Number of Video Cards Not Detected
    Primary Display Resolution:  1680 x 1050
    Desktop Resolution: 1680 x 1050
    Primary Display Size: 18.62" x 11.65"  (21.93" diag)
                                            47.3cm x 29.6cm  (55.7cm diag)
    Primary VRAM Not Detected

Sound card:
    Audio device: Realtek ALC888

Memory:
    RAM:  3958 Mb

Miscellaneous:
    UI Language:  English
    LANG:  en_US.UTF-8
    Microphone:  Not set
    Total Hard Disk Space Available:  112642 Mb
    Largest Free Hard Disk Block:  54509 Mb

Installed software:

Recent Failure Reports: