Nvidia TwinView + Compositing [SOLVED]

[shuhart]

If anybody knows how to make Compositing work with the TwinView in Karmic, please help.

I've got to monitors, but can use both of them only in non-compositing mode. If I try to turn composite on, desktop go white and there is nothing on it except mouse cursor.

And I can't save 2 monitors config. If anybody knows how to make it, please let me know.

[ukchucktown]

Re: Nvidia TwinView + Compositing

I had to fiddle with the xorg.conf file generated by nvidia-settings. It did not detect my external monitor correctly which resulted in a host of problems. It could be the cause of your problem but I really don't know. A second monitor must be defined using options in the Screen section. It's only necessary if the monitor is detected incorrectly. I posted my Screen section. The Screen section has my laptop monitor. I defined my external (primary) in the monitor section. The NVIDIA tool was inserting my laptop specs in the Monitor section causing the problems. I used nvidia-settings to generate the initial file, cut and paste to Kate and made the edits myself. Everything works great after the changes. The documentation from NVIDIA is very good. I linked it.

ftp://download.nvidia.com/XFree86/Li...DME/index.html

Section "Screen"
  Identifier   "Screen0"
  Device     "Device0"
  Monitor    "Monitor0"
  DefaultDepth  24
  Option     "SecondMonitorHorizSync" "30.0 - 75.0"
  Option     "SecondMonitorVertRefresh" "60.0"
  Option     "TwinView" "1"
  Option     "TwinViewXineramaInfoOrder" "DFP-1"
  Option     "metamodes" "DFP-0: 1280x800_60 +1920+0, DFP-1: 1920x1200_60 +0+0"
  SubSection   "Display"
    Depth    24
  EndSubSection
EndSection

[shuhart]

Re: Nvidia TwinView + Compositing

Thanks a lot. I followed your advice and everything works fine now. Here is mine xorg.conf (may be somebody will find it useful)

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

Section "Module"
  Load      "glx"
EndSection

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

Section "InputDevice"
  Identifier   "Keyboard0"
  Driver     "keyboard"
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 "Monitor"
  Identifier   "Sharp"
EndSection

Section "Monitor"
  Identifier   "Monitor0"
  VendorName   "Unknown"
  ModelName   "BenQ FP92Wa"
  HorizSync    30.0 - 83.0
  VertRefresh   56.0 - 76.0
EndSection

Section "Device"
  Identifier   "nvidia0"
  Driver     "nvidia"
EndSection

Section "Device"
  Identifier   "Device0"
  Driver     "nvidia"
  VendorName   "NVIDIA Corporation"
  BoardName   "GeForce 8600M GT"
EndSection

Section "Screen"
  Identifier   "Screen0"
  Device     "Device0"
  Monitor    "Monitor0"
  DefaultDepth  24
  Option     "NoLogo" "True"
  Option     "TwinView" "1"
  Option     "TwinViewXineramaInfoOrder" "DFP-0"
  Option     "metamodes" "CRT: nvidia-auto-select +1920+300, DFP: nvidia-auto-select +0+0"
  SubSection   "Display"
    Depth    24
  EndSubSection
EndSection

[ukchucktown]

Re: Nvidia TwinView + Compositing

Let's go ahead and mark this one SOLVED so others know to come looking for a possible solution. Thanks.