Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I have seen many pieces but not a comprehensive guide to fix what must be a very common problem, particularly in Ubuntu 11.10 where there is no xorg.conf file. Is there an easy how-to somewhere (for Linux newbies like me)to get this done. The other pieces I've seen require a fair amount of Linux ability to make them work. Even better would be to make Ubuntu automatically detect these types of monitors.

I have a green screen and the drivers installed. I just can't see a picture on my Doublesight USB monitor. Any help would be appreciated.

share|improve this question
add comment

1 Answer

This may help you get it going.

Displaylink Doublesight DS-90U monitor working

1) Install dependencies required to build displaylink X server...

apt-get install xinit xserver-xorg xserver-xorg-dev xfonts-base libusb-dev xorg-dev git-core build-essential

2) Downloaded and fixed source for xserver-xorg-video-displaylink from Launchpad and extract the source code.

tar xvfz xserver-xorg-video-displaylink_0.3.orig.tar.gz
cd xf86-video-displaylink

Edit src/displaylink.c

#graphical
gedit src/displaylink.c

#command line
nano src/displaylink.c

comment (add a # to the front) out the following lines...

//#include "xf86Resources.h"
//#include "xf86RAC.h"
//      pScrn->racMemFlags = RAC_FB | RAC_COLORMAP | RAC_CURSOR | RAC_VIEWPORT;
//      pScrn->racIoFlags = RAC_FB | RAC_COLORMAP | RAC_CURSOR | RAC_VIEWPORT;
//      xf86CrtcScreenInit (pScreen);`

3) build and install

./configure && make && make install
sudo cp  /usr/local/lib/xorg/modules/drivers/displaylink_drv.so /usr/lib/xorg/modules/drivers/

4) create /etc/X11/xorg.conf

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen         0  "DisplayLinkScreen" 0 0
EndSection
Section "Device"
    Identifier  "DisplayLinkDevice"
    Driver      "displaylink"
    Option      "fbdev" "/dev/fb0"
EndSection
Section "Monitor"
    Identifier  "DisplayLinkMonitor"
    # DS-90U is 1024x600 9-inch monitor - remove or change the DisplaySize for other devices
    DisplaySize  190 115
EndSection
Section "Screen"
    Identifier  "DisplayLinkScreen"
    Device      "DisplayLinkDevice"
    Monitor     "DisplayLinkMonitor"
EndSection

5) Plug in the Displaylink monitor into a USB port (screen should go green)

6) Reboot or restart X

source

instructions

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.