

Chrome is the most commonly used application on this machine, so it is possible that the behavior is being triggered by Chrome, however, the behavior affects all applications, including system applications like software update and terminal.Ġ0:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c) Neither of these behaviors were seen during two years running 16.04.01.Ĭhrome is being used. This system also exhibits a corrupted lock screen since upgrade to 18.04.01. Killing gnome (from another TTY) and allowing it to relaunch results in a normal display again. The application window is again briefly displayed when dismissing the application icons by again clicking Show Applications.

Selecting one switches to a black window for that application. The application icons are shown correctly. They are still there, and can be interacted with with keyboard shortcuts or if you know where to click with the mouse, but they are not drawn.Ĭlicking Show Applications briefly draws the application window before switching to the background and application icons. Intermittently and randomly, all application windows will go black.
