AMD Radeon(TM) HD 6480G: black screen

So here's the deal, i install ubuntu 11.10 alongside windows blah blah, well when i restart my computer and choose to run ubuntu, it says finishing installation.... or whatever and then the backlight to my laptop goes off, making it black of course, and then thats it. Remains that way forever!

I've tried all the avaiable options of running ubuntu, like the graphics safe mode, verbose, all of that, does no good. I've also reinstalled several times from hard disc, virtual drive (mounting the .iso image), installing off usb, and simply running off usb. Also, i've tried both running and installing from an actually live disk of Ubuntu 10.04.

I figure Ubuntu has a real problem with my graphics card, but surely there is a fix right?

My specs follow..thanks for your help in advance!

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System Information
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Time of this report: 12/4/2011, 16:12:48
       Machine name: BRADS-HP
   Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1
           Language: English (Regional Setting: English)
System Manufacturer: Hewlett-Packard
       System Model: HP Pavilion g7 Notebook PC
               BIOS: InsydeH2O Version CCB.03.61.22F.33
          Processor: AMD A4-3300M APU with Radeon(tm) HD Graphics (2 CPUs), ~1.9GHz
             Memory: 4096MB RAM
Available OS Memory: 3562MB RAM
          Page File: 1732MB used, 5391MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: Using System DPI
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7601.17514 32bit Unicode

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Display Devices
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          Card name: AMD Radeon(TM) HD 6480G
       Manufacturer: Advanced Micro Devices, Inc.
          Chip type: ATI display adapter (0x9648)
           DAC type: Internal DAC(400MHz)
         Device Key: Enum\PCI\VEN_1002&DEV_9648&SUBSYS_3568103C&REV_00
     Display Memory: 2022 MB
   Dedicated Memory: 497 MB
      Shared Memory: 1525 MB
       Current Mode: 1600 x 900 (32 bit) (60Hz)
       Monitor Name: Generic PnP Monitor
      Monitor Model: unknown
         Monitor Id: LGD027A
        Native Mode: 1600 x 900(p) (60.080Hz)
        Output Type: Internal