Install catalyst 11.1 AMD HD6870

Can you give the output of:

sudo lshw -C display

Thanks

Here is what I get form the command.
$ sudo lshw -C display
[sudo] password for user:
  *-display UNCLAIMED
       description: VGA compatible controller
       product: ATI Technologies Inc
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:d0000000-dfffffff memory:fe5e0000-fe5fffff ioport:9000(size=256) memory:fe5c0000-fe5dffff

Did you run:

sudo aticonfig --initial -f

?

Have you followed the installation guide with respect to this paragraph:

You MUST make sure that the standard radeon drivers are not installed. If you don't do this, the open-source radeon driver may be used instead of the newly-installed Catalyst driver, even if the Catalyst driver is correctly installed. This may cause the error message "aticonfig: No supported adapters detected":

$ sudo apt-get remove --purge xserver-xorg-video-radeon

I have tried both
user@user-MS-7577:~$ sudo aticonfig --initial -f
[sudo] password for user:
aticonfig: No supported adapters detected

and
user @ user-MS-7577: ~ $ sudo apt-get remove - purge xserver-xorg-video-radeon
Reading package lists ... Finished
Building dependency tree
Reading state information ... Finished
Package xserver-xorg-video-radeon is not installed, so it is not deleted
0 upgrade, 0 to newly installed, 0 to remove and 0 not upgraded.
still no luck and I have tried it before

What looks strange to me is that "sudo lshw -C display" shows

description: VGA compatible controller
product: ATI Technologies Inc
vendor: ATI Technologies Inc

It seems that ubuntu cannot identify your video adapter at all, which then will most probably have the consequence that aticonfig will not identify that unindentified adapter as one that the new driver can use.

Can you run the command lspci

user@user-MS-7577:~$ command lspci
00:00.0 Host bridge: ATI Technologies Inc RD790 Northbridge only dual slot PCI-e_GFX and HT3 K8 part
00:02.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port A)
00:03.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port B)
00:05.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port B)
00:06.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port C)
00:07.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port D)
00:09.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port E)
00:0c.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx1 port B)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [IDE mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:00.0 VGA compatible controller: ATI Technologies Inc Device 6738
01:00.1 Audio device: ATI Technologies Inc Device aa88
02:00.0 RAID bus controller: HighPoint Technologies, Inc. Device 2720 (rev 03)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
05:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series Firewire Controller
06:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03)
06:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03)
07:00.0 Network controller: RaLink RT2860

Sorry to say, but I do not have any idea how to proceed.

I just can conclude that both lshw and lspci apparently do not know much details about your graphic card.

I do not know if a graphic card can be too new to be correctly detected.
(http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units says it was released Oct. 22, 2010).

Some ideas what could be next steps:
1. try to create a /etc/X11/xorg.conf file manually (instead of aticonfig, use information in the installation guide in your question)
2. investigate if adding some information about that card in the kernel config or kernel source can help
3. search the web
4. wait for upcoming releases to solve that

I should try it.

I typed this command

$ sudo gedit /etc/X11/xorg.conf

and typed this in the xorg.conf
"

Section "Device"
 Identifier "ATI radeon 6870"
 Driver "fglrx"
EndSection

"
I get "unsupported hardware" watermark when in the relese note it says it support my grafik card but it another problem to solve, the driver is working good for now.
Thank you for your support.