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Thread: 12.04 How to extend display on dual screen?

  1. #1
    Join Date
    Feb 2012
    Beans
    5

    12.04 How to extend display on dual screen?

    Hey there,

    Just updated from 11.10 to 12.04 Ubuntu. I have been on Windows most of the time lately and want to expand on Linux. My question is...

    How do I extend my display? Like have workspace 2 on my second monitor that I connected to? All the options that I see is mirror, where both screen replicates each other running at the same resolution.

    I have a HP Elitebook 8740w.

    -Devin

  2. #2
    Join Date
    Feb 2012
    Beans
    5

    Re: 12.04 How to extend display on dual screen?

    No one using dual screen? Got an update. When I uncheck the mirror option I have a choice to select whether to turn on each specific screen.

    My laptop screen in 1680x1050, and my secondary monitor at 1920x1080. However, when I uncheck the mirror option and turn on both screens I get this message.


    required virtual size does not fit available size: requested=(3600, 1080), minimum=(320, 200), maximum=(1920, 1920)

    then....

    GDBus.Errorrg.gtk.GDBus.UnmappedGError.Quark._gnome_2drr_2der ror_2dquark.Code3: required virtual size does not fit available size: requested=(3600, 1080), minimum=(320, 200), maximum=(1920, 1920)

    Could it be a driver issue?

  3. #3
    Join Date
    May 2010
    Location
    Lancaster, UK
    Beans
    315
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: 12.04 How to extend display on dual screen?

    If you have an Nvidia Graphics card this thread may help

    http://ubuntuforums.org/showthread.php?t=1967803

    I managed to get twinview working in the end but am still not able to set up two separate x screens -- as far as I know this is impossible using Unity, but doable with xfce.

    If you have an ATI card I'm afraid I can't help you.

  4. #4
    Join Date
    Jul 2009
    Location
    Denmark
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: 12.04 How to extend display on dual screen?

    If you are using ATI card and proprietary driver then use CCC to setup Xinerama but if you use Open-Source ATI driver then you should play with your xorg.conf file, I managed to setup dual-head with it. So what is your call?

    I had to go from Open-Source to Catalyst in 12.04 because Catalys solved a problem with heat and fan speed - only one reason why I was not using ubuntu so much, but with catalyst in 12.04 things seem to be muuuch better, have not tried yet to setup Dual-Head
    Sony Vaio VPCEB1S1E/BJ <--> Core i5-430M 2.533 MHz <--> Chipset Intel HM55 <--> ATI Radeon HD 5650 1GB Dedicated (Madison) <--> 8 GB RAM

  5. #5
    Join Date
    Jul 2009
    Location
    Denmark
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: 12.04 How to extend display on dual screen?

    I just right now did it with ATI Proprietary driver Catalyst 12.4 and everything is working like damn it! It was never ever working like this like it is working now. OMG I am so happy about 12.04.
    Heat level and fan speed trouble (Most bothering one for me) solved with Proprietary Driver. Dual Head Setup was done with help of AMD Catalyst Center and everything worked right away after couple of clicks and a restart... It is just a nice surprise fro me that Proprietary driver works so well in 12.04, where Open-Source looses in this questions. I always preferred Open Source until now, I hope that Open Source driver will be updated and upgraded and will be still able to provide better performance in 3D than Proprietary drivers. Looking forward. Here is my FGLRX xorg.conf setuped by Catalyst control center

    Code:
    Section "ServerLayout"
    	Identifier     "aticonfig Layout"
    	Screen      0  "aticonfig-Screen[0]-0" 0 0
    EndSection
    
    Section "Module"
    EndSection
    
    Section "ServerFlags"
    	Option	    "Xinerama" "off"
    EndSection
    
    Section "Monitor"
    	Identifier   "aticonfig-Monitor[0]-0"
    	Option	    "DPMS" "true"
    EndSection
    
    Section "Monitor"
    	Identifier   "0-LVDS"
    	Option	    "VendorName" "ATI Proprietary Driver"
    	Option	    "ModelName" "Generic Autodetecting Monitor"
    	Option	    "DPMS" "true"
    	Option	    "PreferredMode" "1366x768"
    	Option	    "TargetRefresh" "60"
    	Option	    "Position" "0 0"
    	Option	    "Rotate" "normal"
    	Option	    "Disable" "false"
    EndSection
    
    Section "Monitor"
    	Identifier   "0-DFP1"
    	Option	    "VendorName" "ATI Proprietary Driver"
    	Option	    "ModelName" "Generic Autodetecting Monitor"
    	Option	    "DPMS" "true"
    	Option	    "PreferredMode" "1360x768"
    	Option	    "TargetRefresh" "60"
    	Option	    "Position" "1366 0"
    	Option	    "Rotate" "normal"
    	Option	    "Disable" "false"
    EndSection
    
    Section "Device"
    	Identifier  "aticonfig-Device[0]-0"
    	Driver      "fglrx"
    	Option	    "Monitor-LVDS" "0-LVDS"
    	Option	    "Monitor-DFP1" "0-DFP1"
    	BusID       "PCI:1:0:0"
    EndSection
    
    Section "Device"
    	Identifier  "amdcccle-Device[1]-1"
    	Driver      "fglrx"
    	Option	    "Monitor-LVDS" "0-LVDS"
    	BusID       "PCI:1:0:0"
    	Screen      1
    EndSection
    
    Section "Screen"
    	Identifier "aticonfig-Screen[0]-0"
    	Device     "aticonfig-Device[0]-0"
    	DefaultDepth     24
    	SubSection "Display"
    		Viewport   0 0
    		Virtual   2726 1920
    		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

    It even recognized the max resolution of my second screen and all suported resolution... Amazing!
    Sony Vaio VPCEB1S1E/BJ <--> Core i5-430M 2.533 MHz <--> Chipset Intel HM55 <--> ATI Radeon HD 5650 1GB Dedicated (Madison) <--> 8 GB RAM

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