I just bisected the git repository of xfce/xfce4-settings and identified the commit that introduced the issue as:
------------------------------------------ dbd76eb58bd9d7a55de753daa5572ef24867d924 Author: Lionel Le Folgoc <[email protected]> 2012-11-08 20:15:42 Committer: Simon Steinbeiss <[email protected]> 2012-11-08 20:50:40 Parent: 82ab3a355a4b7eff6cffa57ca5a8e8622feb2d31 (l10n: Updated Portuguese (pt) translation to 100%) Child: cf67ba0d283d991c67a4e3df2de758f94cb2f7d2 (l10n: Updated Spanish (Castilian) (es) translation to 99%) Branches: master, remotes/origin/bluesabre/display-settings, remotes/origin/bluesabre/display-settings2, remotes/origin/master, remotes/origin/ochosi/primary Follows: xfce4-settings-4.11.0 Precedes: xfce4-settings-4.11.1 Re-enable the internal display when the external one is disconnected (and add the possibility to start xfce4-display-settings --minimal when a new display is connected) Signed-off-by: Simon Steinbeiss <[email protected]> ------------------------------------------ Building and using its immediate predecessor fixes the issue for me. Can anybody confirm? I am currently investigating the code, trying to find what's wrong. However, I have little to no experience regarding the code base, so this might take a while. Any help would be greatly appreciated. -- 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 <[email protected]> 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 : [email protected] Unsubscribe : https://launchpad.net/~linux-traipu More help : https://help.launchpad.net/ListHelp
