With the current git-master (xfce4-settings 8adbd2e2463f5cc46c7ed94c0acf264155476268) and NO patches the issue does not occur for me. That is, neither when powering my HDMI-connected screen off and on again nor when physically disconnecting and reconnecting it.
However, I cannot even reproduce the original issue anymore. Weird! My current configuration: Xubuntu 14.04 x64 Kernel 3.13.0-45-generic Intel Core i5-4590S Intel driver 2.99.911-0intel1 Monitor attached with a HDMI-to-HDMI cable Things that indeed changed: - new, different mainboard (the old one died some weeks ago due to a power supply voltage peak) - new but identical CPU (died due to the same reason) - upgraded packages from the official Xubuntu 14.04 sources (got no related PPAs or such, so it's just regular updates) - new kernel version (probably does not matter) Btw, my machine is not a laptop, so I'm down to 0 outputs when physically disconnecting my screen (I kind of remember this being relevant in the source code). -- You received this bug notification because you are a member of UBUNTU - AL - BR, which is subscribed to Mythbuntu. 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: Confirmed 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 <supe...@ubuntu.com> 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 ============================== To manage notifications about this bug go to: https://bugs.launchpad.net/mythbuntu/+bug/1308105/+subscriptions -- Mailing list: https://launchpad.net/~linux-traipu Post to : linux-traipu@lists.launchpad.net Unsubscribe : https://launchpad.net/~linux-traipu More help : https://help.launchpad.net/ListHelp