• KOReader version: 2020.02
• Device: kobo_nova (Kobo ClaraHD)

Issue

In landscape mode the frontlight level on status bar causes screen artifact on poweroff. The frontlight level status bar item being selected is what causes the artifact, the presence (or absence) of any of the other possible status bar items makes no difference.

Steps to reproduce

1 ensure statusbar is enabled
2 ensure the frontlight level box is checked
3 open an epub
4 set to landscape view
5 power off device

A vertical bar is then seen across the landscape text on my device. The bar remains on the screen when the device is powered back on, and screen refresh removes it until the next power-off. The frontlight indicator on the status bar (along the bottom) remains at the value when the device was on, and the 'anomalous' frontlight level shows the correct value.