Oh, thanks for all of you reported this issue. I'm using Ubuntu20.04.2 now, and encountered the exactly same issue as you met about 12 years ago on Ubuntu9.04. It seems this is a very old bug in Ubuntu or linux bug on its HDMI driver. And because not so many people using external HDMI monitor, so this issue couldn't be paid attention to for linux/Ubuntu engineering team.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/349943 Title: Screen blinks randomly on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/349943/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
