• Hui Wang's avatar
    sound: clear the value on level_bar when stream is empty · aa0adcaa
    Hui Wang authored and Robert Ancell's avatar Robert Ancell committed
    
    
    We met an Input Device level_bar display issue on a machine which has
    no internal mic. At first there is no external mic plugged, so the
    Input Device list is empty and level_bar is gray color, after we plug
    an external mic, the level_bar has red color ripples, then we unplug
    the external mic, the Input Device list changes to empty and we
    expect the level_bar changes back to gray color, but some bars are
    still red color.
    
    Here clear the self->value to 0 if the stream is empty, then the
    level_bar will change back to gray color when Input/Output device
    list is empty.
    Signed-off-by: Hui Wang's avatarHui Wang <hui.wang@canonical.com>
    aa0adcaa