xorg not starting every few weeks.

[Kim Carter]

Hi. I setup a machine a few months ago. Video card is Gigabyte 
GV-N650OC-2GI GTX 650 PCIE.
Linux Mint 3.2.0-23-generic.
I'm using 3 korean 2560x1440 monitors.
I spent close to 2 days getting the screens to work.
About every month, X doesn't completly start on boot, and i have to 
reset and it starts ok.
On investigating the log files, Every thing looks the same up until a 
certian line.
After the line when I boot and it works, I get a lot of extra log lines.

These are the lines from the log file where X starts:

[    28.855] (II) NVIDIA(0): Setting mode "DVI-D-0: 2560x1440 @2560x1440 
+0+0, DVI-D-1: nvidia-auto-select @2560x1440 +2560+0"
[    29.027] (II) NVIDIA(0): Setting mode "VGA-0: nvidia-auto-select 
@2560x1440 +5120+0, DVI-D-1: nvidia-auto-select @2560x1440 +2560+0"
[    29.199] (II) NVIDIA(0): Setting mode "VGA-0: nvidia-auto-select 
@2560x1440 +5120+0, DVI-D-0: nvidia-auto-select @2560x1440 +0+0, 
DVI-D-1: nvidia-auto-select @2560x1440 +2560+0"
# other lines after this, I don't think are relevant.

This is the line from the log file where X doesn't start.

[    29.441] (II) NVIDIA(0): Setting mode "VGA-0: nvidia-auto-select 
@2560x1440 +5120+0, DVI-D-1: 2560x1440 @2560x1440 +0+0"

My /etc/X11/xorg.conf

 1.
    Section"ServerLayout"
 2.
         Identifier "Layout0"
 3.
         InputDevice "Keyboard0""CoreKeyboard"
 4.
         InputDevice "Mouse0""CorePointer"
 5.
    EndSection
 6.
 7.
    Section"Files"
 8.
    EndSection
 9.
10.
    Section"InputDevice"
11.
    # generated from default
12.
         Identifier "Mouse0"
13.
         Driver "mouse"
14.
         Option "Protocol""auto"
15.
         Option "Device""/dev/psaux"
16.
         Option "Emulate3Buttons""no"
17.
         Option "ZAxisMapping""4 5"
18.
    EndSection
19.
20.
    Section"InputDevice"
21.
    # generated from default
22.
         Identifier "Keyboard0"
23.
         Driver "kbd"
24.
    EndSection
25.
26.
    # Single Graphics Card
27.
    Section"Device"
28.
         Identifier "Device0"
29.
         Driver "nvidia"
30.
         VendorName "NVIDIA Corporation"
31.
             BoardName "GeForce GTX 650"
32.
    EndSection
33.
34.
    Section"Monitor"
35.
         Identifier "Monitor0"
36.
             Option "Primary""false"
37.
             VendorName "Shimian"
38.
         ModelName "ACB QHD270"
39.
         HorizSync 30.0-91.0
40.
         VertRefresh 56.0-75.0
41.
         Option "DPMS"# Configure with
    https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling
42.
    EndSection
43.
44.
    Section"Monitor"
45.
         Identifier "Monitor1"
46.
             Option "RightOf""Monitor0"
47.
             Option "Primary""false"
48.
         VendorName "Unknown"
49.
             ModelName "FSM-270YG"
50.
         HorizSync 30.0-91.0
51.
         VertRefresh 56.0-75.0
52.
         Option "DPMS"# Configure with
    https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling
53.
    EndSection
54.
55.
    Section"Monitor"
56.
         Identifier "Monitor2"
57.
             Option "RightOf""Monitor1"
58.
             Option "Primary""false"
59.
         VendorName "Shimian"
60.
         ModelName "ACB QHD270"
61.
         HorizSync 30.0-91.0
62.
         VertRefresh 56.0-75.0
63.
         Option "DPMS"# Configure with
    https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling
64.
    EndSection
65.
66.
    Section"Screen"
67.
         Identifier "Screen"
68.
         Device "Device0"
69.
         Monitor "Monitor0"
70.
         DefaultDepth 24
71.
             Option "IgnoreEDIDChecksum" "DFP-2"
72.
             Option "ExactModeTimingsDVI""TRUE"
73.
             Option "ModeValidation" "NoDFPNativeResolutionCheck"
74.
         SubSection "Display"
75.
    Modes "2560x1440"# just added
76.
             Depth 24
77.
         EndSubSection
78.
         Option "UseDisplayDevice""DFP"
79.
    EndSection



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