Olivier Caro, could you please use the latest mainline kernel and provide the missing information following https://wiki.ubuntu.com/DebuggingKernelBoot ?
** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1499491 Title: Display connected on DisplayPort turns black during boot and never returns To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1499491/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs