o Fix backlight control in case that light is controlable but not be able to get status. o change some verbose prints.
lcd on/off
WSDISPLAYIO_PARAM_BRIGHTNESS supports.
- just copy from bivideo. - erase WindowsCE hardware cursor initialy. - LCD power management codes exist, but currently disabled. Because some devices(include ite8181) confuse after LCD power turn on. WorkPad z50 power unit seem to be very weak,