I have an ASUS Z170M-Plus Mobo with an Intel Core i3-6100T, Intel HD 530 graphics and a Samsung TV connected through HDMI, running Mythbuntu 16.04.
I had the issue that when I turned the TV off and then back on again, the TV would say "No Signal" and I would have to run $ sudo service lightdm restart to get it to work again. Based on Alexandre's comment #128, I installed xfce-settings 4.12.1 from here: https://packages.debian.org/stretch/amd64/xfce4-settings/download http://ftp.uk.debian.org/debian/pool/main/x/xfce4-settings/xfce4-settings_4.12.1-1_amd64.deb and installed it on my Mythbuntu 16.04 installation. To my surprise, I didn't have any dependency issues, it all applied without problems and now the problem seems fixed! I can turn the TV off and on again and the picture comes back as expected. Great work all in getting this sorted. -- 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: 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
