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Also affects nvidia-graphics-drivers-319

The effect is identical to https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/958279
but with Nvidia instead of AMD/ATI drivers.

HW is Dell Precision M4800 with GK106GLM [Quadro K2100M] and QHD+
display

Once the display shuts off, it will not be woken up anymore and the screen stays dark.
Only a restart of the Xserver will bring back the display at that point.

A cycle of
xset dpms force off; sleep 30; xset dpms force on
will leave the display dark.

At the moment I help myself by not allowing DPMS to switch off the display:
neuffer@charion:~$ xset dpms 0 0 0

neuffer@charion:~$ xset -q -d :0.0
Keyboard Control:
  auto repeat:  on    key click percent:  0    LED mask:  00000000
  XKB indicators:
    00: Caps Lock:   off    01: Num Lock:    off    02: Scroll Lock: off
    03: Compose:     off    04: Kana:        off    05: Sleep:       off
    06: Suspend:     off    07: Mute:        off    08: Misc:        off
    09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
    12: Group 2:     off    13: Mouse Keys:  off
  auto repeat delay:  500    repeat rate:  20
  auto repeating keys:  00ffffffdffffbbf
                        fadfffefffedffff
                        9fffffffffffffff
                        fff7ffffffffffff
  bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control:
  acceleration:  2/1    threshold:  4
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  0    cycle:  0
Colors:
  default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path:
  /usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,built-ins
DPMS (Energy Star):
  Standby: 0    Suspend: 0    Off: 0
  DPMS is Enabled
  Monitor is On

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: nvidia-331 331.20-0ubuntu9
ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.13.1-0ubuntu1
Architecture: amd64
Date: Sat Jan 11 12:06:30 2014
InstallationDate: Installed on 2014-01-07 (3 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
SourcePackage: nvidia-graphics-drivers-331
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise trusty utopic
-- 
[Dell M4800] DPMS support broken, fails to wake up the monitor after putting it to sleep
https://bugs.launchpad.net/bugs/1268151
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