[Libdlo] 3rd screen with displaylink and nvidia driver on ubuntu 10.10
Vincent MAZENOD
vmazenod at gmail.com
Thu Dec 2 05:48:47 PST 2010
I tried to configure a third screen connected with a displaylink (Konig
USB VGA) on an ubuntu 10.10 Maverick Meerkat
First I installed nvidia proprietary driver
Next I followed these instructions
http://ubuntuforums.org/showthread.php?p=9358565 to install displaylink
driver libdlo (except for the update of the kernel cause I've already a
newer one)
Next when I reboot I have the prompt connexion on the screen connected
with displaylink and an extended desktop on my 3 screens \o/
BUT when I log in gdm crash immediatly!
I found this line in /var/log/syslog
Dec 2 12:40:47 bigmaze NetworkManager[1121]: <error>
[1291290047.969035] [nm-manager.c:1317] user_proxy_init(): could not
init user settings proxy: (3) Could not get owner of name
'org.freedesktop.NetworkManagerUserSettings': no such name
and googling say I have to disable Xinerama but is not enable in my
/etc/x11/xorg.conf as you can see
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 260.19.06 (buildd at palmer) Mon Oct 4
16:01:38 UTC 2010
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "DisplayLinkScreen" 0 0
Screen 1 "Screen0" RightOf "DisplayLinkScreen"
Option "Xinerama" "0"
EndSection
Section "Files"
ModulePath "/usr/local/lib/xorg/modules/drivers"
ModulePath "/usr/lib/xorg/modules"
ModulePath "/usr/lib/xorg/modules/drivers"
ModulePath "/usr/local/lib"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Hitachi/HINT X220W D-sub"
HorizSync 31.0 - 83.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 9500 GT"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "CRT-0"
Option "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1:
nvidia-auto-select +1680+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
##################################################{DisplayLink
Section "Monitor"
Identifier "DisplayLinkMonitor"
EndSection
Section "Device"
Identifier "DisplayLinkDevice"
Driver "displaylink"
Option "fbdev" "/dev/fb0"
EndSection
Section "Screen"
Identifier "DisplayLinkScreen"
Device "DisplayLinkDevice"
Monitor "DisplayLinkMonitor"
SubSection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
EndSubSection
EndSection
##################################################{
I suspected a conflict between nvidia and displaylink driver cause
using default or nv driver is not crashing gdm (but I have not extended
desktop with it).
So I tried to install latest version of the nvidia driver from here
http://www.nvidia.com/object/unix.html
but gdm is still crashing a few seconds after I log in :'(
Any suggestion?
regards
Vincent
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