Expected: Serial console should be accessible even if DUT goes to suspend mode.
Not sure I agree with this. Not entirely sure what DUT is. Assuming it means display unit.
Messages indicate the system is suspending. This means all consoles will be disabled unless you specifically do something to ensure they are enabled for debugging (hence the text: use no_console_suspend to debug). This isn't just the display blanking, but the entire system sleeping. This will require a hardware interrupt to wake the system (something like a touch on a touchscreen, or pressing a hardware button, input from a USB HID device, etc). What is the expected means of waking up a Snowball board?
Expected: Serial console should be accessible even if DUT goes to suspend mode.
Not sure I agree with this. Not entirely sure what DUT is. Assuming it means display unit.
Messages indicate the system is suspending. This means all consoles will be disabled unless you specifically do something to ensure they are enabled for debugging (hence the text: use no_console_suspend to debug). This isn't just the display blanking, but the entire system sleeping. This will require a hardware interrupt to wake the system (something like a touch on a touchscreen, or pressing a hardware button, input from a USB HID device, etc). What is the expected means of waking up a Snowball board?