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[omriasta <1189639@xxxxxxxxxxxxxxxxxx>]

Just purchased a Startech.com mini dp to DVI adapter and the issue does not occur.
It seems that the issue is confined to the mini dp to VGA adapter. If anyone is looking to purchase one of these the Cirago "active" mini dp to VGA has issues on Ubuntu when the screen goes to DPMS.

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https://bugs.launchpad.net/bugs/1189639

Title:
  [dp] External Screen doesn't wake up from sleep

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have a Lenovo X1 Carbon with an external screen connected to a Mini DP to VGA adapter. External screen works fine until the display goes to sleep for inactivity (just the display goes to sleep, not the laptop).
  When I return to the laptop, the built in screen wakes but the external screen does not. The screen is still detected, xrandr displays the resolution and I can move the cursor to the external display but the display remains off.
  I have tried cycling with Fn+F7 and also tried Ctrl+Alt+F1 then Ctrl+Alt+F7. The only way to get the external display back on is by disconnecting the adapter from the laptops DP port and reconnecting.

  dmesg produces:
  drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting

  Running 
  Description:	Ubuntu 13.04
  Release:	13.04
  kernel 3.8.0-23-generic
  xserver-xorg-video-intel:
    Installed: 2:2.21.6-0ubuntu4

  
  As a workaround I have disabled the monitor from sleeping in System Settings->Brightness & Lock-> Turn Screen off when inactive for
  --- 
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  omri       2408 F.... pulseaudio
                        omri       8582 F.... TeamViewer.exe
   /dev/snd/pcmC0D0p:   omri       2408 F...m pulseaudio
  DistroRelease: Ubuntu 13.10
  HibernationDevice: RESUME=UUID=d46a5b01-0285-4289-8345-692997c83409
  InstallationDate: Installed on 2013-10-19 (80 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 3443CTO
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-15-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm bluetooth cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 04/29/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G6ET96WW (2.56 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 3443CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG6ET96WW(2.56):bd04/29/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3443CTO
  dmi.product.version: ThinkPad X1 Carbon
  dmi.sys.vendor: LENOVO

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