I've messed up. I work on HP Pavilion dv6000 laptop with nVidia GeForce 8400M GS video card. I had a problem with resolution of my external display, and Ubuntu display manager hadn't seen the proper display's resolution, so I started to setting it up in nVidia X server Settings. I added X Screen 1 and saved to X Configuration file. I don't know how it happened, but somehow I turned off my built in display and I can't turn it on. After this occurred I updated video card driver, but the problem still exists.
nvidia-smi output:
+------------------------------------------------------+
| NVIDIA-SMI 340.102 Driver Version: 340.102 |
|----------------------------+-------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|============================+===================+======================|
| 0 GeForce 8400M GS Off | 0000:01:00.0 N/A | N/A |
| N/A 65C P0 N/A / N/A | 234MiB / 255MiB | N/A Default |
+----------------------------+-------------------+----------------------+
+-----------------------------------------------------------------------+
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=======================================================================|
| 0 Not Supported |
+-----------------------------------------------------------------------+
xorg.conf
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 361.42 (buildd@lgw01-18) Tue Apr 5 14:33:28 UTC 2016
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 "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
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: builtin, VertRefresh source: builtin
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-0"
HorizSync 28.0 - 55.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "AU Optronics Corporation"
HorizSync 30.0 - 75.0
VertRefresh 60.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8400M GS"
BusID "PCI:1:0:0"
Screen 0
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8400M GS"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "CRT-0"
Option "metamodes" "VGA-0: 1360x768 +0+0"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "Stereo" "0"
Option "metamodes" "LVDS-0: nvidia-auto-select +0+0 {viewportin=1440x900}"
Option "SLI" "Off"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
My guess is that I should remove all the references to the Screen 1 from xorg.conf or restore this file to the original one. However the file xorg.conf.backup also isn't original, because I restarted the system multiple times while working on solving this problem.
Any ideas how to fix this problem or where to find the original xorg.conf file for the GeForce 8400M GS?
