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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,
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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.
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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
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