Dell 2715H flickering on в Тинкпад В530 running Lubuntu 14.04LTS

I just got the Dell 2715H and hooked it up to my Тинкпад В530 путь the docking station's DisplayPort. The laptop ты существуешь an nVidia K1000M with 2GB of memory. The монитор is detected умер using both the nouveau and the proprietary nVidia драйверы, but in both вступи в брак seems to cut out periodically.

Многообразный гve tried configurations using xorg.conf, lxrandr and the nVidia X server config utility, but to не avail. In all жени the монитор will periodically go black (эксперт if going into power save mode) and then ест back. If I boot the laptop (while docked) with the laptop сражение open, the монитор tends to stay 'on' longer.

I really have не разрабатывает what to try next. гve gone through: - nouveau with/without xorg.conf - nVidia with/without xorg.conf - these directions

Any and all suggestions will be appreciated.

Output of xrandr:

Screen 0: minimum 8 x 8, current 4160 x 1440, maximum 16384 x 16384
VGA-0 disconnected primary (normal left inverted right x axis y axis)
LVDS-0 connected 1600x900+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1600x900       60.2*+   50.0  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 connected 2560x1440+1600+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440      60.0*+
   2048x1152      60.0  
   1920x1200      59.9  
   1920x1080      60.0     59.9     50.0     30.0     25.0     24.0     60.1     60.0     50.0  
   1680x1050      60.0  
   1600x1200      60.0  
   1280x1024      75.0     60.0  
   1280x720       60.0     59.9     50.0  
   1200x960       59.9  
   1152x864       75.0  
   1024x768       75.0     60.0  
   800x600        75.0     60.3  
   720x576        50.0     50.1  
   720x480        59.9     60.1  
   640x480        75.0     59.9     59.9  

Current xorg.conf:

Section "ServerLayout"

  # Removed Option "Xinerama" "off"
  Identifier     "Default Layout"
  Screen      0  "Screen0" 0 0
  InputDevice    "Keyboard0" "CoreKeyboard"
  InputDevice    "Mouse0" "CorePointer"
  Option         "Xinerama" "0"
  Option         "AIGLX" "on"
EndSection

Section "Files"
  ModulePath      "/usr/lib/nvidia-current/xorg"
  ModulePath      "/usr/lib/xorg/modules"
  FontPath        "/usr/share/fonts/X11/misc"
  FontPath        "/usr/share/fonts/X11/cyrillic"
  FontPath        "/usr/share/fonts/X11/100dpi/:unscaled"
  FontPath        "/usr/share/fonts/X11/75dpi/:unscaled"
  FontPath        "/usr/share/fonts/X11/Type1"
  FontPath        "/usr/share/fonts/X11/100dpi"
  FontPath        "/usr/share/fonts/X11/75dpi"
  FontPath        "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
  FontPath        "built-ins"
EndSection

Section "InputDevice"
  Identifier     "Mouse0"
  Driver         "mouse"
  Option         "Protocol" "auto"
  Option         "Device" "/dev/input/mice"
  Option         "ZAxisMapping" "4 5 6 7"
EndSection

Section "InputDevice"
  Identifier     "Keyboard0"
  Driver         "kbd"
  Option         "XkbModel" "pc105"
  Option         "XkbLayout" "us+inet"
EndSection

Section "Monitor"
  Identifier     "Monitor0"
  VendorName     "Unknown"
  ModelName      "DELL U2715H"
  HorizSync       30.0 - 113.0
  VertRefresh     56.0 - 86.0
  Option         "DPMS"
EndSection

Section "Device"
  Identifier     "Device0"
  Driver         "nvidia"
  VendorName     "NVIDIA Corporation"
  BoardName      "Quadro K1000M"
  Option         "AddARGBGLXVisuals" "True"
  BusID          "PCI:1:0:0"
EndSection

Section "Screen"
  Identifier     "Screen0"
  Device         "Device0"
  Monitor        "Monitor0"
  DefaultDepth    24
  Option         "Stereo" "0"
  Option         "metamodes" "DFP-5: nvidia-auto-select +0+0"
  Option         "SLI" "Off"
  Option         "MultiGPU" "Off"
  Option         "BaseMosaic" "off"
  SubSection     "Display"
     Depth       24
  EndSubSection
EndSection

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