desktop-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Amos, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command once from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1538221

Please ensure you have the package xdiagnose installed, and that you
click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the
above method. You can learn more about this functionality at
https://wiki.ubuntu.com/ReportingBugs.

** Package changed: xserver-xorg-video-ati (Ubuntu) => xorg (Ubuntu)

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

** Changed in: xorg (Ubuntu)
       Status: New => Incomplete

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg in Ubuntu.
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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