desktop-packages team mailing list archive

[Liviu Andronic <1308105@xxxxxxxxxxxxxxxxxx>]

Thanks a lot André! And thanks a lot for the instructions; although I
know most of them individually, stringing them all together wasn't
immediately obvious.

I've tested Sean's updated patch and I'm happy to report that it seems
indeed to solve the `xfsettingsd` crashes. I will test it for a couple
more days to make sure that all is OK, but so far looks very promising!
I'll report back if I'm still hitting trouble.

(The only nagging issue was that after `make install`---hence having
both /usr/bin/xfsettingsd and /usr/local/bin/xfsettingsd---for some
reason the "Mirror display" option was greyed out. I suspect it's some
issue with having both binaries installed at the same time, but I can't
say.)

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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:
  Incomplete
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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