12.04 Dual Monitor Nvidia

hi there!,

im having some problems with my dual monitor setup and was wondering if i could get some help? all i get is a white screen on the second monitor and a small "x" as a cursor.

i have done the following.

-cd /etc/X11
-sudo rm xorg.conf
-sudo nvidia-settings

and i tried enabling the second monitor with that and saving the new xorg config file but that didn't work either... and yes i did log out and back in, i even rebooted my pc... (T.T)

Nvidia detects the second monitor but Settings---> Displays doesn't ... (T.T)




# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 295.33 (buildd@allspice) Fri Mar 30 13:37:33 UTC 2012

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "HannStar Display Corp AG191"
HorizSync 30.0 - 83.0
VertRefresh 55.0 - 75.0
Option "DPMS"
EndSection

Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "DELL E178FP"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 560 Ti"
BusID "PCI:1:0:0"
Screen 0
EndSection

Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 560 Ti"
BusID "PCI:1:0:0"
Screen 1
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "CRT-0"
Option "metamodes" "CRT-0: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "CRT-1: 1280x1024 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

I had this problem as well. I solved it by using Twinview instead of seperate x screen. This made both monitors work correctly; however the "Displays" application showed a single giant monitor named "laptop" instead of the two distinct monitors in nvidia-settings. This made some applications use the wrong resolution and become unusable.

going back to the open source driver made everything work properly, but was noticeably choppier all around.

After some searching, I tried updating to the nvidia-current-updates in the testing feed (version 304.43-0ubuntu0.1), rebooted and now everything works perfectly. The screen resolution can be set either via nvidia-settings or the display application.

It looks like this update is in the pipeline, so you can either wait for it or go grab it from the testing feed.

thank you very much... sorry it took me a while to get back to you... i'll try that as soon as i have access to my desktop.

I too had the same problem when I used nvidia from 12.04 on Apple MacBook Pro 5,5 - with both external monitor, which supported EDID and a projector, which didn't provide EDID over DVI.

After upgrading to 304.43 from Ubuntu-X, external monitor worked fine, but projector got stuck at 640x480 resolution. After I added NoEdidModes to xorg.conf file, it went up to 800x600 only. The projector supports up to 1280x1024.

With nouveau, suspend/resume didn't work earlier. So, I'm not sure of going back to nouveau.

Quote:

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Originally Posted by sateeshpnv

I too had the same problem when I used nvidia from 12.04 on Apple MacBook Pro 5,5 - with both external monitor, which supported EDID and a projector, which didn't provide EDID over DVI.

After upgrading to 304.43 from Ubuntu-X, external monitor worked fine, but projector got stuck at 640x480 resolution. After I added NoEdidModes to xorg.conf file, it went up to 800x600 only. The projector supports up to 1280x1024.

With nouveau, suspend/resume didn't work earlier. So, I'm not sure of going back to nouveau.

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Have you tried to add a 1280x1024 modeline in xorg.conf. I had same problem with
projector and adding the correct modeline gave me right resolution.