Actualizacion de Ubuntu 12.04.5 a Ubuntu 14.4.1

[Aradenatorix Veckhom Vacelaevus]

Hola:

Según dmidecode:

System Information
    Manufacturer: Acer
    Product Name: V5-131
    Version: V2.18
    Serial Number: NXM89AL01234728F813400
    UUID: A766A93E-5048-E311-A672-201A06AD3210
    Wake-up Type: Power Switch
    SKU Number: V5-131_0742_V2.18
    Family: Type1Family

Processor Information
    Socket Designation: U3E1
    Type: Central Processor
    Family: Celeron
    Manufacturer: Intel(R) Corporation
    ID: A9 06 03 00 FF FB EB BF
    Signature: Type 0, Family 6, Model 58, Stepping 9
    Flags:
        FPU (Floating-point unit on-chip)
        VME (Virtual mode extension)
        DE (Debugging extension)
        PSE (Page size extension)
        TSC (Time stamp counter)
        MSR (Model specific registers)
        PAE (Physical address extension)
        MCE (Machine check exception)
        CX8 (CMPXCHG8 instruction supported)
        APIC (On-chip APIC hardware supported)
        SEP (Fast system call)
        MTRR (Memory type range registers)
        PGE (Page global enable)
        MCA (Machine check architecture)
        CMOV (Conditional move instruction supported)
        PAT (Page attribute table)
        PSE-36 (36-bit page size extension)
        CLFSH (CLFLUSH instruction supported)
        DS (Debug store)
        ACPI (ACPI supported)
        MMX (MMX technology supported)
        FXSR (FXSAVE and FXSTOR instructions supported)
        SSE (Streaming SIMD extensions)
        SSE2 (Streaming SIMD extensions 2)
        SS (Self-snoop)
        HTT (Multi-threading)
        TM (Thermal monitor supported)
        PBE (Pending break enabled)
    Version: Intel(R) Celeron(R) CPU 1007U @ 1.50GHz
    Voltage: 0.8 V
    External Clock: 100 MHz
    Max Speed: 4000 MHz
    Current Speed: 1500 MHz
    Status: Populated, Enabled
    Upgrade: Socket rPGA988B
    L1 Cache Handle: 0x0009
    L2 Cache Handle: 0x000A
    L3 Cache Handle: 0x000B
    Serial Number: To Be Filled By O.E.M.
    Asset Tag: To Be Filled By O.E.M.
    Part Number: To Be Filled By O.E.M.
    Core Count: 2
    Core Enabled: 2
    Thread Count: 2
    Characteristics:
        64-bit capable
        Multi-Core
        Execute Protection
        Enhanced Virtualization
        Power/Performance Control

y lspci entre otras cosas me da:

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09)

Mi sistema es ubuntu 14.04 y ademas de unity tengo gnome fallback (o flashback)

Espero que eso sirva.

Saludos