On Saturday 15 Oct 2011 04:30:18 Lavender wrote:
> I have just tried , the output is like something below
> 
>  01:00.0 VGA compatible controller:  ATI Technologies Inc M92 LP
>  Subsystem: Hewlett-Packard Company Device 3644
>  Flags: bus master, fast devsel, latency 0, IRQ 10
>  Memory at 80000000 (32bit, prefetchable) [size=256M]
>  I/O ports at 3000 [size=256]
>  Memory at 90300000 (32bit, non-prefetchable) [size=64K]
>  Expansion ROM at 90320000 [disabled] [size=128K]
>  Capabilities: [50] Power Management version 3
>  Capabilities: [58] Express Legacy Endpoint, MSI 00
>  Capabilities: [a0] MSI: Enabel- Count=1/1 Maskable- 64bit+
>  Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
> 
>  How can I find the driver according to these information ?


There should be an additional line with the kernel modules just below what you 
showed.  This is what mine is showing:
=================================
02:00.0 VGA compatible controller: ATI Technologies Inc Device 9488 (prog-if 
00 [VGA controller])
	Subsystem: Dell Device 02fe
	Flags: bus master, fast devsel, latency 0, IRQ 45
	Memory at d0000000 (32-bit, prefetchable) [size=256M]
	I/O ports at 2000 [size=256]
	Memory at cfef0000 (32-bit, non-prefetchable) [size=64K]
	[virtual] Expansion ROM at cfe00000 [disabled] [size=128K]
	Capabilities: [50] Power Management version 3
	Capabilities: [58] Express Legacy Endpoint, MSI 00
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: radeon
=================================

Are you using the latest LiveCD?  Have you tried booting with this?

  http://www.sysresccd.org

It usually has the latest kernel and drivers.
-- 
Regards,
Mick