Investigate CONFIG_DRM_PANEL_LVDS vs CONFIG_DRM_PANEL_SIMPLE

CONFIG_DRM_DW_HDMI_I2S_AUDIO vs CONFIG_DRM_DW_HDMI_AHB_AUDIO

 CONFIG_IIO_CROS_EC_SENSORS_CORE vs CONFIG_IIO_CROS_EC_ACCEL_LEGACY
(probably the first??)
tried the first, didn't change anything obvious. Further testing required. 

Enable boot logo? Device Drivers->Graphics support->Bootup logo


Added:
better sound support? HDMI support?