A user running Ubuntu with Gnome Desktop environment also found that APT came up with a blank screen. The problem was resolved by turning off all visual effects (System> Preferences> Appearance> Visual Effect> None).
Recently there was a big media sensation in Wisconsin around something called the "efficiency gap." It was a new metric of partisan gerrymandering that, for the first time, a court said they liked. The way it was devised was that the people who created it, they went back and they read all of Justice Anthony Kennedy’s written decisions about measuring gerrymandering. By reading his words and by reading what he said he found convincing and less convincing, they designed a statistic to appeal to him. He’s that vaunted median justice. If you can come up with something that will be convincing to Anthony Kennedy, then you’ve probably just changed the outcome.