On Android 10, after pressing the power button to turn off the display,
hwcomposer send a
hotplug event to turn off the display. The power button could be pressed again to wake up the display, but on some displays, after pressing the power button,
hwcomposer send a unplug event when the display is still off, after which a segmentation fault occurs in
This patch added a display connection check and does not call the
HandleDisplayHotplug() function, which dispatches an hotplug event when the display is disabled.