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void7910

Member

Registered: 2012-01-14

Posts: 7

multi monitor, enableing nvidia with USB graphics adapter

Ok, I am trying to add a USB Graphics Adapter to my laptop so I can add an extra screen. I've been following wikis etc, and have hacked together a 10-monitors.conf file, but every time I start X the "fbdev" module is unloaded with no errors in the log!!! What is going on?

Here is a snippet from my xorg log, I have read that the UBB warning is a red herring, but could it be causing my woes/

[     9.881] (--) NVIDIA(1): DPI set to (90, 88); computed from "UseEdidDpi" X config
[     9.881] (--) NVIDIA(1):     option
[     9.881] (WW) NVIDIA(1): UBB is incompatible with the Composite extension.  Disabling
[     9.881] (WW) NVIDIA(1):     UBB.
[     9.881] (II) UnloadModule: "fbdev"
[     9.881] (II) Unloading fbdev
[     9.881] (II) UnloadSubModule: "fbdevhw"
[     9.881] (II) Unloading fbdevhw

Here is my 10-monitors.conf

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 
    Screen      1  "Screen1" RightOf "Screen0"
    Screen      2  "Screen2" LeftOf "Screen0"
    Option         "Xinerama" "1"
EndSection

################ DisplayLink Stuff ###################

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor2"
    VendorName     "Unknown"
    ModelName      "DELL P2210"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
       Identifier      "Device2"
       Driver          "fbdev"
       BusID           "USB"               # needed to use multiple DisplayLink devices 
       Option          "fbdev" "/dev/fb0"  # change to whatever device you want to use
       Screen           2 
EndSection

Section "Screen"
       Identifier      "Screen2"
       Device          "Device2"
       Monitor         "Monitor2"
       DefaultDepth    16
EndSection


################ Nvidia Stuff ###################
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 313.30  (buildmeister@swio-display-x86-rhel47-05)  Wed Mar 27 16:37:11 PDT 2013


Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "DELL P2210"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "DELL P2210"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro FX 880M"
    BusID          "PCI:1:0:0"
    Screen          1
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro FX 880M"
    BusID          "PCI:1:0:0"
    Screen          0
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    16
    Option         "Stereo" "0"
    Option         "metamodes" "DFP-3: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       16
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    16
    Option         "Stereo" "0"
    Option         "metamodes" "DFP-2: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       16
    EndSubSection
EndSection

Any help would be very much appreciated!!! Thanks,

wassy

Member

Registered: 2013-04-16

Posts: 6

Re: multi monitor, enableing nvidia with USB graphics adapter

So I have also come up with the same issues. However on other forums most people suggest putting the usb video as screen0. It may work for you however I have still experienced the same thing regardless.

void7910

Member

Registered: 2012-01-14

Posts: 7

Re: multi monitor, enableing nvidia with USB graphics adapter

I haven't figured out how to get this working within one X server. I had to run a separate X server for the USB graphics display, then link the input with x2x. Take a look at this link: http://wiki.gentoo.org/wiki/DisplayLink