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[Liviu Andronic <1308105@xxxxxxxxxxxxxxxxxx>]

As for the xfsettingsd crash, I noticed that with current master I was no longer experiencing the crashes. So I did some GIT bisecting, and it turns out that I can reproduce the crash with: 
http://git.xfce.org/xfce/xfce4-settings/commit/?id=5a7f55a049147320adb8e2dc8495d6f868c4d6ac

But I get no more crashes with: 
http://git.xfce.org/xfce/xfce4-settings/commit/?id=404d982f2936a58649423642956be563982b2ffa

It seems to me that Olivier has inadvertently fixed this issue... Just
to confirm, I do NOT get xfsettingsd crashes when using master and my
usual test case. As far as my setup is concerned, this issue is fixed.


=====
So what remains to be addressed is the disabled `Mirror displays` option introduced in 835671ad8db9bcaed4ec3d53753b7f9a8b4610a7. Should I open a separate ticket on this issue?

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https://bugs.launchpad.net/bugs/1308105

Title:
  Xfce resets TV mode to NULL when power cycled

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Confirmed
Status in xfce4-settings:
  In Progress
Status in nvidia-graphics-drivers package in Ubuntu:
  Invalid
Status in nvidia-graphics-drivers-331 package in Ubuntu:
  Invalid
Status in xfce4-settings package in Ubuntu:
  Confirmed

Bug description:
  I had an HTPC with Mythbuntu 12.04 installed.  Upon upgrading a new
  behavior that if the TV is power cycled it no longer detects a link
  with the HTPC.

  When this happens I can find in the xorg log that there is an
  accompanying log item:

  [ 39829.509] (II) NVIDIA(0): Setting mode "NULL"

  After debugging with NVIDIA at
  https://devtalk.nvidia.com/default/topic/729955/linux/tv-stops-being-
  detected/ we've deteremined it's a X client that reacts to the RANDR
  events causing the mode to be set to NULL.

  Working through the list in an Xfce environment, the culprit is
  xfsettingsd.  If xfsettingsd is running, it causes the TV to come up
  in a NULL mode.  If it's killed, it remains in the mode it was
  previously running in.

  
  Until this is fixed, this behavior can be worked around with a simple shell script:
  ==============================
  #!/bin/sh
  #Fix TV state when HDMI link is lost.
  #By Mario Limonciello <superm1@xxxxxxxxxx>

  OUTPUT="HDMI-0"
  BAD_MODE="1280x720"
  GOOD_MODE="1920x1080"

  for MODE in $BAD_MODE $GOOD_MODE; do
   DISPLAY=:0 xrandr --output $OUTPUT --mode $MODE
   sleep 2
  done
  ==============================

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