This is a CEC related issue: try changing HDMI cable; port or (both) on the TV. But it can be ignored.
We probably need to add VID/PID support for the Xbox tuner.
We’d also need to check driver support as it looks to be an MN-88472 based chipset.
So at the least you’d need wget http://palosaari.fi/linux/v4l-dvb/firmware/MN88472/02/latest/dvb-demod-mn88472-02.fw -O /lib/firmware/dvb-demod-mn88472-02.fw if that firmware isn’t there already.