Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

Just upgraded to 14.04 and after rebooting my secondary monitor isn't working the way it was before the upgrade. I tried to get it back working but it doesn't seem to be working this time. Before I had both monitors as separate x screens and I configured this through Nvidia x server settings.

Now my second monitor has a black background but nothing else. I can still move my cursor to it but can't do anything on it. My xorg.conf file is at the bottom of this post.

Any one got any ideas? If you need any more info just ask.

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 337.12  (buildd@charichuelo)  Wed Apr  9 12:25:02 UTC 2014

Section "ServerLayout"
Identifier     "Layout0"
Screen      0  "Screen0"
Screen      1  "Screen1" LeftOf "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      "BenQ GW2265"
HorizSync       30.0 - 83.0
VertRefresh     50.0 - 76.0
Option         "DPMS"
EndSection

Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier     "Monitor1"
VendorName     "Unknown"
ModelName      "HP L1740"
HorizSync       30.0 - 83.0
VertRefresh     50.0 - 76.0
Option         "DPMS"
EndSection

Section "Device"
Identifier     "Device0"
Driver         "nvidia"
VendorName     "NVIDIA Corporation"
BoardName      "GeForce GTX 650"
Option         "Coolbits" "4"
BusID          "PCI:1:0:0"
Screen          0
EndSection

Section "Device"
Identifier     "Device1"
Driver         "nvidia"
VendorName     "NVIDIA Corporation"
BoardName      "GeForce GTX 650"
Option         "Coolbits" "4"
BusID          "PCI:1:0:0"
Screen          1
EndSection

Section "Screen"
Identifier     "Screen0"
Device         "Device0"
Monitor        "Monitor0"
DefaultDepth    24
Option         "Stereo" "0"
Option         "nvidiaXineramaInfoOrder" "DFP-2"
Option         "metamodes" "DVI-D-1: nvidia-auto-select +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" "VGA-0: nvidia-auto-select +0+0"
Option         "SLI" "Off"
Option         "MultiGPU" "Off"
Option         "BaseMosaic" "off"
SubSection     "Display"
    Depth       24
EndSubSection
EndSection

A bit more info. when I go to System Settings > Screen Display only my main monitor is detected. I'm pretty sure my second monitor was there before.

share|improve this question

1 Answer 1

The same exact thing just happened to me. I looked in /etc/X11, and I believe my xorg.conf file was renamed to xorg.conf.MMDDYYYY where MMDDYYYY were set to today's date (the day I did the upgrade).

I copied this xorg.conf.MMDDYYY file to /etc/X11/xorg.conf, rebooted, and my 2nd monitor returned to life. Maybe you won't have as easy a time, but this worked for me.

share|improve this answer
    
Yeah I tried this but the xorg.conf.MMDDYYYY wasn't setup the same as it was before. Both monitors work when they use the same xscreen but won't when I try to use two separate xscreens. One for each monitor. –  apemax Apr 20 at 10:45

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.