Hallo, i have the same problem under Xubuntu 14.04 and a brandnew HP Zbook 14.
At system boot my external vga screen was detected correctly and a few seconds after Xubuntu-XFCE-Login the external screen isn't available. At a few seconds i have seen the correct XFCE-desktop through the login process. Here is my syslog-entry if i plug out an plug in the external vga-monitor: [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up The problem affects obviosly to a programming bug. See here: https://bugs.freedesktop.org/attachment.cgi?id=93781 (Patch Intel i915). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1300914 Title: External screen undetected after first plug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
