I'm having a similar issue...I believe....my monitor goes blank after a certain time and doesn't turn back on....I looked up the error "drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting" and that brough me here....I've attached my dmesg output.....that output is *after* I turn the monitor back on from a dead state.
As far as I can tell no output is generated right before the blanking of the monitor. ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1189639/+attachment/3753950/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1189639 Title: [dp] External Screen doesn't wake up from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1189639/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
