https://bugs.kde.org/show_bug.cgi?id=502630
--- Comment #1 from Will Styler <w...@savethevowels.org> --- OK, I've found a way to coerce display settings into giving the desired output, confirming that this is software, not hardware. On the built in screen, in Display Settings, I need: - Enabled, Primary, 1600x2560 (10:16) - 90 CCW rotation Manual On the external screen, I need: - Enabled, Not Primary, 1680x1050 (16:10) - No Rotation, Manual - Replica of Built-In Screen Note the counterintuitive fact that the aspect ratio is listed as different for the two screens, even though they are displaying the same content. This creates the desired mirroring effect. However, when I pull up the Display Switcher with Meta+P and hit mirror displays, it creates: -- You are receiving this mail because: You are watching all bug changes.