Yes mine is the white model (guess it is 2222 model ). I am getting DD5.1 from the below connection and no firmware update is needed.
Connection-1
DTH HDMI OUT - AVR HDMI IN and AVR HDMI OUT - TV HDMI IN
( AVR displays "Dolby digital" for most of the HD channels.)
Since I don't to keep the AVR in standby for watching DTH, connected it directly to TV as below
DTH HDMI OUT - TV HDMI IN
( No digital audio conection made from D2H to AVR).
In this case when I turn on AVR and the D2H audio will be output via TV HDMI(ARC) to AVR. AVR displays " PCM" for Dolby digital channels also. This may be the limitation of TV and ARC and it will transfer only 2 channel audio. So a "Digital Audio" out connection D2H to AVR is what is needed to get the DD5.1 if HDMI is connected directly to TV.