I noticed this issue affects my system mentioned above under WinXP too. Even more with WinXP.
So I think this whole "bug" is hardware -related. This bug is not to blame Linux. I used WinXP to show animated movies to my kids as video quality is better with WinXP. Videos played without a glitch, but after that my wife surfed the internet using Firefox and XP, and black 1 second blinks appeared at approximately 5 minutes intervals. So, hardware related. I will come back to tell if this is a problem with DisplayPort as I imagine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011732 Title: External display blinks off periodically To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1011732/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs