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[Amos <amos.elberg@xxxxxxxxx>]

I'd really prefer to execute commands and provide the results, if that's
at all possible.  (And apport is still going, perhaps it'll unfreeze in
a few hours.)

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https://bugs.launchpad.net/bugs/1538221

Title:
  Monitors on DisplayPort do not wake from sleep

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  Potentially related:  
  http://askubuntu.com/questions/546818/displayport-monitor-not-detected-if-switched-off-and-on-again
  https://bugs.freedesktop.org/show_bug.cgi?id=88063
  http://superuser.com/questions/945362/displayport-link-failure-after-monitor-sleep

  I have three monitors plugged into an ATI HD 7950, one through DVI,
  the others through DisplayPort, via dual-link adapters.  When KDE puts
  the monitors to sleep, only the DVI monitor wakes up, not the
  DisplayPort monitors.

  xrandr shows all three monitors on.

  xset dpms force on does not work.   Using xrandr to change the
  resolution and change it back does not work.  Logging out and logging
  back in does not work.  Trying to switch to CLI with shift-alt-f1, I
  see a console, but it shows the bootlog (on the DVI monitor), without
  a login prompt.

  Trying to log out and log back in, lightdm behaves as though the other
  two monitors are on, but only displays on the DVI.

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