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I have fresh installed the last Ubuntu version 11.10 in my desktop computer but I have a problem with my Graphic Card RADEON HD6870 at the boot of the O.S.

Hard Disk Interno Western Digital Caviar Green 500GB 3.5" Intellipower 32MB 
Case Midi Cooler Master Centurion 5 II ATX Nero
VGA Club 3d Radeon HD 6870 Core 900MHz Memory GDDR5 4200MHz 1GB 2xDVI HDMI             2xminiDisplayPort        
Masterizzatore Interno Blu-Ray LG BH10LS30 10x BR/DVD/CD Sata Bulk nero     
CPU Intel Core i5-2500K 3.30GHz Socket 1155 95W con GPU Sandy Bridge Boxed 
Alimentatore PC Corsair Enthusiast Series TX650 V2 650W 80Plus Bronze       
Scheda Madre Asrock H67DE3 Socket 1155 Intel H67 DDR3 SATA3 USB3 HDMI ATX
RAM DDR3 Geil Value Plus GVP36GB1333C7TC 1333MHz 6GB (3x2GB) CL7-7-7-24
ADAPTER DISPLAYPORT A HDMI, DVI E DISPLAYPORT       

This is my Ubuntu Version:

Distributor ID: Ubuntu
Description:    Ubuntu 11.10
Release:    11.10
Codename:   oneiric

The problem is after the boot. I can login but I cannot split the screens in three parts.

My Desktop WITHOUT the ATI Drivers and UBUNTU drivers: Desktop view

When I try to set the monitors I get this error:

[ 3130.906415] amdcccle[2548]: segfault at 8 ip 081cf6b8 sp bfcdbb00 error 4 in amdcccle[8048000+5d4000]

ATI Catalyst Configuration: ATI Catalyst config

Xorg.conf Configuration:

Section "Device"
    Identifier  "aticonfig-Device[0]-0"
    Driver      "fglrx"
    Option      "AccelMethod" "EXA"
    Option      "MigrationHeuristic" "greedy"
    Option      "AccelDFS" "true"
    Option      "EnablePageFlip" "true"
    Option      "EnableDepthMoves" "true"
    Option      "ColorTiling"   "on"
    Option      "EXAPixmaps"    "on"
    Option      "RenderAccel"   "on"

EndSection

Section "Screen"
    Identifier  "Default Screen"
    DefaultDepth    24
EndSection

Section "Module"
    Load    "glx"
EndSection

I have solved using these commands:

sudo apt-get remove --purge xorg-driver-fglrx fglrx*
sudo apt-get remove --purge fglrx*
sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri
sudo dpkg-reconfigure xserver-xorg
sudo apt-get install build-essential cdbs fakeroot dh-make debhelper debconf libstdc++6 dkms libqtgui4 wget execstack libelfg0 dh-modaliases
sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.old

then I have restarted the pc and the screens are set correct!

I have forgot that when I have started the Ubuntu Live from USB I have set the screens before to install the O.S. on my PC!

share|improve this question

closed as off topic by qbi, TheX, Uri Herrera, Stephen Myall, Jorge Castro Feb 28 '13 at 22:57

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
It is seems that there is a bug with the driver (segfault). Bugs are off-topic here. So I mark it as close. However it might help to upgrade to a newer version and see if the problem disappeared. Or you can also add a bugreport to Launchpad. –  qbi Feb 28 '13 at 18:57

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