ATI Dual Monitor Left/Right

**Cuco3** · January 21st, 2011

Ubuntu 10.04

I have the ATI proprietary drivers installed. I have a dual monitor set up: laptop on my left, and LCD on the right. I have the LCD set up as the main screen, but I want to be able to move my mouse to the left onto the other screen. As of right now, I have to go to the right in order to get on to the other screen.

The ATI GUI tool, even w/ Administrative privileges, does not apply the changes I want it to. I can't even enable somethings like Xinerama. Weird.

Here's my xorg.conf

Code:

Section "ServerLayout"
    Identifier     "amdcccle Layout"
    Screen      0  "amdcccle-Screen[1]-0" 0 0
EndSection

Section "Files"
EndSection

Section "Module"
    Load  "glx"
EndSection

Section "ServerFlags"
    Option        "Xinerama" "off"
EndSection

Section "Monitor"
    Identifier   "0-CRT1"
    Option        "VendorName" "ATI Proprietary Driver"
    Option        "ModelName" "Generic Autodetecting Monitor"
    Option        "DPMS" "true"
    Option        "PreferredMode" "1680x1050"
    Option        "TargetRefresh" "60"
    Option        "Position" "0 0"
    Option        "Rotate" "normal"
    Option        "Disable" "false"
EndSection

Section "Monitor"
    Identifier   "0-LVDS"
    Option        "VendorName" "ATI Proprietary Driver"
    Option        "ModelName" "Generic Autodetecting Monitor"
    Option        "DPMS" "true"
    Option        "TargetRefresh" "60"
    Option        "Position" "1680 0"
    Option        "Rotate" "normal"
    Option        "Disable" "false"
    Option        "PreferredMode" "1366x768"
EndSection

Section "Device"
    Identifier  "Default Device"
    Driver      "fglrx"
    BusID       "PCI:1:5:0"
EndSection

Section "Device"
    Identifier  "amdcccle-Device[1]-0"
    Driver      "fglrx"
    Option        "Monitor-CRT1" "0-CRT1"
    Option        "Monitor-LVDS" "0-LVDS"    
    BusID       "PCI:1:5:0"
EndSection

Section "Device"
    Identifier  "amdcccle-Device[1]-1"
    Driver      "fglrx"
    Option        "Monitor-LVDS" "0-LVDS"
    BusID       "PCI:1:5:0"
    Screen      1
EndSection

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

Section "Screen"
    Identifier "amdcccle-Screen[1]-0"
    Device     "amdcccle-Device[1]-0"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Virtual   3046 3046
        Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "amdcccle-Screen[1]-1"
    Device     "amdcccle-Device[1]-1"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

Here's a weird thing also: I can only enable/disable monitors using the default "Monitors" tool. And when I arrange the monitors there, it still doesn't apply the changes.

**Cuco3** · January 21st, 2011

Any1 please?

**Cuco3** · January 22nd, 2011

please?

**gerowen** · January 22nd, 2011

I installed the ATI proprietary drivers from synaptic, but when I hook my laptop up to my TV for playing Nintendo 64 or something I don't even use it. I just use the "System -> Preferences -> Monitors" thing. You can drag the little diagram boxes around in that to identify the setup of your screens, hit apply and it configures your display accordingly. I had to use it the first time to tell it that the TV was to the right of the laptop and that I did not want them mirrored.

**gerowen** · January 22nd, 2011

By the way, you may have to log out and back in after applying changes for them to take effect. A lot of times, if it's the first time you've hooked up a particular secondary monitor, you'll have to re-log (which in effect restarts X) so the settings can be written to the configuration file. Then you should be able to plug-and-play that particular monitor in the future.

**Cuco3** · January 22nd, 2011

Originally Posted by gerowen

I installed the ATI proprietary drivers from synaptic, but when I hook my laptop up to my TV for playing Nintendo 64 or something I don't even use it. I just use the "System -> Preferences -> Monitors" thing. You can drag the little diagram boxes around in that to identify the setup of your screens, hit apply and it configures your display accordingly. I had to use it the first time to tell it that the TV was to the right of the laptop and that I did not want them mirrored.

I have tried it that way. Unfortunately, it moves the actual desktop (ie startmenu) to the left and makes my LCD the secondary monitor. What I need it to do is keep the LCD monitor as main monitor (right) and make the Laptop (left) the secondary monitor. I want to be able to move the mouse over to the left side of the screen to switch from Main to Secondary monitor. Thanks anyway.

Any1 else? Please?

**Krytarik** · January 22nd, 2011

Code:

Section "ServerLayout"
    Identifier     "amdcccle Layout"
    Screen      0  "amdcccle-Screen[1]-0" 0 0
     Screen      1  "amdcccle-Screen[1]-1" RightOf "amdcccle-Screen[1]-0"    # add this
EndSection

Section "Files"
EndSection

Section "Module"
    Load  "glx"
EndSection

Section "ServerFlags"
     Option        "Xinerama" "off"                  # set this to "on"
EndSection

Section "Monitor"
    Identifier   "0-CRT1"
    Option        "VendorName" "ATI Proprietary Driver"
    Option        "ModelName" "Generic Autodetecting Monitor"
    Option        "DPMS" "true"
    Option        "PreferredMode" "1680x1050"
    Option        "TargetRefresh" "60"
     Option        "Position" "0 0"                    # isn't necessary in this setup
    Option        "Rotate" "normal"
    Option        "Disable" "false"
EndSection

Section "Monitor"
    Identifier   "0-LVDS"
    Option        "VendorName" "ATI Proprietary Driver"
    Option        "ModelName" "Generic Autodetecting Monitor"
    Option        "DPMS" "true"
    Option        "TargetRefresh" "60"
     Option        "Position" "1680 0"               # isn't necessary in this setup
    Option        "Rotate" "normal"
    Option        "Disable" "false"
    Option        "PreferredMode" "1366x768"
EndSection

Section "Device"
    Identifier  "Default Device"
    Driver      "fglrx"
    BusID       "PCI:1:5:0"
EndSection

Section "Device"
    Identifier  "amdcccle-Device[1]-0"
    Driver      "fglrx"
    Option        "Monitor-CRT1" "0-CRT1"
     Option        "Monitor-LVDS" "0-LVDS"    # remove this one
    BusID       "PCI:1:5:0"
    Screen      0                                    # add this
 EndSection

Section "Device"
    Identifier  "amdcccle-Device[1]-1"
    Driver      "fglrx"
    Option        "Monitor-LVDS" "0-LVDS"
    BusID       "PCI:1:5:0"
    Screen      1
EndSection

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

Section "Screen"
    Identifier "amdcccle-Screen[1]-0"
    Device     "amdcccle-Device[1]-0"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
         Virtual   3046 3046                 # may have to removed
        Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "amdcccle-Screen[1]-1"
    Device     "amdcccle-Device[1]-1"
    DefaultDepth     24
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
EndSection

Since you have not said which one is the LCD and which one the laptop screen, it may be the other way around. I've assumed it from the specified positioning.

https://wiki.archlinux.org/index.php....2FDual_screen

**MashUseLinux** · July 13th, 2012

Any one got any solution?
me too got the same problem on 12.04, i keep my extra monitor on the left and laptop on the right. So i want to move the mouse smoothly from laptop to extra monitor moving mouse towards left, as for now its getting when moving towards right only, thats weired..