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**oshunluvr** · Jun 26, 2011, 12:32 PM

Re: question about my odd xorg file

First of all, I'd say it appears there's been quite a bit of editing done on your xorg.conf file. Most of it is a mess.

If you're using twinview, you need only have one screen and monitor section as twinview configures the second screen and you only need one device section unless you have two video cards.

To get answers to what xorg is doing - read /var/log/Xorg.0.log and see how it's detecting and configuring your setup.

If you want to try and reconfigure twinview properly:

1) Rename /etc/X11/xorg.conf to xorg.conf.old (in case you want to refer to it later)
2) Open a terminal and type: sudo nvidia-xconfig and then sudo service kdm restart

This should leave you with only the primary monitor working and the second one blank.
Log back in and:

1) Open a terminal and type: sudo nvidia-settings
2) Enable the 2nd monitor and save settings at /etc/X11/xorg.conf
3) Then sudo service kdm restart again and log back in.

This should do it. I would then research specific options available for your card to improve your performance.

**oshunluvr** · Jun 26, 2011, 12:40 PM

Re: question about my odd xorg file

Here's my xorg.conf for you to compare with. I disable "Dynamic Twinview" because my system is a desktop and therefore the attached screens do not change. I have added several options for my card (8800GT) that may or may not help you. I also set my "Metamodes" at a fixed resolution because I always want my screens at native resolution. In your case Option "MetaModes" "1280x1024,1024x768" would be more appropriate.

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection

Section "Extensions"
Option "Composite" "Enable"
Option "RENDER" "Enable"
EndSection

Section "ServerFlags"
Option "Xinerama" "0"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "DELL 1905FP"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8800 GT"
BusId "PCI:1:0:0"
Option "Coolbits" "1A"
Option "TripleBuffer" "True"
# + Enables triple buffering. "Decreases the time an application stalls while waiting for vblank events, but increases latency slightly" (NVIDIA Readme)
Option "UseCompositeWrapper" "True"
# + Enables the X server's composite wrapper instead of the builtin one.
Option "BackingStore" "True"
# + Cache overlayed areas in case they get redisplayed later
Option "OnDemandVBlankInterrupts" "True"
# + only fire VBlank interrupts in modes where they are needed
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "DPI" "100x100"
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "DynamicTwinView" "false"
Option "TwinViewOrientation" "LeftOf"
Option "MetaModes" "1280x1024,1280x1024; 1280x1024"
SubSection "Display"
Depth 24
EndSubSection
EndSection

**adrianm** · Jun 27, 2011, 04:07 AM

Re: question about my odd xorg file

thanks for the replies, although i havnt been able to try changing the xorg file cos now i cant log in!

last night it all worked just fine, booted up this morning and it freezes on the login page (cursor blinks but cant type or move mouse pointer)

Just before the splash screen there is a moment where a light blue screen with an error message appears but it does stay long enough to read it (tried several times) The most i could get was something about MCU request failed or some such - seems like a hardware issue but absolutely nothing has changed since it last worked. (unless kubuntu applied some patch in the background while shutting down)

Does anyone know what the issue is? or failing that any way to make the error message stay until you press enter or something?

**adrianm** · Jul 06, 2011, 06:24 AM

Re: question about my odd xorg file

sudo nvidia-xconfig

will this completely reconfig the file with only what i need? im having trouble (http://kubuntuforums.net/forums/inde...opic=3117504.0) with my mouse/keyboard that i think may be due to my config file - id like to just set it back to default so i can get basic functionality back.

**oshunluvr** · Jul 06, 2011, 06:49 AM

Re: question about my odd xorg file

Yes, that should reset you to default.

You can also delete or rename xorg.conf

**adrianm** · Jul 06, 2011, 10:50 AM

Re: question about my odd xorg file

well the command worked but had no effect

i might just reinstall

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