Mouse doesn't work on CS:S

gistfile1.txt

Processor Information:
    Vendor:  GenuineIntel
    Speed: 3901 Mhz
    8 logical processors
    4 physical processors
    HyperThreading:  Supported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Supported
    
Network Information:
    Network Speed:  
    
Operating System Version:
    Ubuntu Raring Ringtail (development branch) (64 bit)
    Kernel Name:  Linux
    Kernel Version:  3.8.0-18-generic
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11303000
    X Window Manager:  Compiz
    Steam Runtime Version:  steam-runtime-release-i386_2013-04-02
    
Video Card:
    Driver:  Intel Open Source Technology Center Mesa DRI Intel(R) Ivybridge Desktop x86/MMX/SSE2

    Driver Version:  3.0 Mesa 9.0.3
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 60 Hz
    VendorID:  0x8086
    DeviceID:  0x162
    Number of Monitors:  1
    Number of Logical Video Cards:  1
    Primary Display Resolution:  1920 x 1080
    Desktop Resolution: 1920 x 1080
    Primary Display Size: 20,08" x 11,42"  (23,07" diag)
                                            51,0cm x 29,0cm  (58,6cm diag)
    Primary VRAM Not Detected
    
Sound card:
    Audio device: Intel PantherPoint HDMI
    
Memory:
    RAM:  6930 Mb
    
Miscellaneous:
    UI Language:  English
    LANG:  cs_CZ.UTF-8
    Microphone:  Not set
    Total Hard Disk Space Available:  1869618 Mb
    Largest Free Hard Disk Block:  1611340 Mb
    
Installed software:
    
Recent Failure Reports: