multiple displays when enabling nvidia driver

Asked by daniel walls

I have downloaded ubuntu 9.04 on to my compaq laptop. When I enable the nvidia driver so that I can use the enhanced desktop features, I run into a problem. After I enable the driver, I reboot my laptop and it makes a high pitched beep sound. The laptop then reboots and my screen displays 6 small displays. 3 on the left side of the screen and 3 on the other. They are not seperate desktops. There is also a static like grayish line about an 1/8 of an inch thick that seperates the 6 displays on my laptop screen. All of enhanced desktop features work fine but I don't want 6 small screens on my laptop for obvious reasons. I have tried changeing the resolution via nvidia settings with no success. I've tried using 8.04 and kubuntu 9.04 and have the same problem with them when I enable the nvidia driver. I've also tried using different drivers then the recommended 180' driver, but that doesn't help either. I'm currently running kubuntu 9.04 in low graphics mode untill I figure out how to solve this problem. Please help.

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wojox
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Best wojox (wojox) said :
#1

Try this in the terminal:

kdesu kate /etc/X11/xorg.conf

Look for the Device section and add:

Option "ModeValidation" "NoTotalSizeCheck"

Save and reboot.

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daniel walls (pokalotap12) said :
#2

I typed kdesu kate /etc/X11/xorg.conf in the terminal and it said command not found. I'm sort of a newbie at this so I might require a little more help. I tried gedit kdesu kate /etc/X11/xorg.conf and the folder *xorg.conf (/etc/X11) - gedit opened up and I typed Option "ModeValidation" "NoTotalSizeCheck" in the device section directly under the line that reads Identifier "Configured Video Device". I then tried to save but it tells me that I don't have the permissions necessary to save the file and to check if I typed the location correctly.

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daniel walls (pokalotap12) said :
#3

I got it and it worked. Thank you, thank you, thank you wojox.

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daniel walls (pokalotap12) said :
#4

Thanks wojox, that solved my question.

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wojox (wojox) said :
#5

Welcome, glad to see you got it running. I use gnome and noticed you had kubuntu installed so wasn't sure about the editing of xorg.conf but I'm glad you figured it out.