Using a servo v4 with an HP power charger attached to its DUT POWER port.
In servo v4 console, we can see error messages with command `cc snkdts` sometimes and `cc srcdts` for almost every time:


> cc snkdts
[485.263860 CCD: TypeC detach, no change to SBU mux]
[485.291696 CCD: TypeC detach, no change to SBU mux]
C1 st14
dts mode: on
C1 st15
chg mode: off
chg allowed: off
> C1 st17
C1 st18
[485.804337 PD TMOUT RX 1/1]
RXERR1 Preamble
[485.909200 PD TMOUT RX 1/1]
RXERR1 Preamble
[486.014822 PD TMOUT RX 1/1]
RXERR1 Preamble
[486.120297 PD TMOUT RX 1/1]
RXERR1 Preamble
[486.225343 PD TMOUT RX 1/1]
RXERR1 Preamble
......



> cc srcdts
[477.230849 CCD: TypeC detach, no change to SBU mux]
[477.258636 CCD: TypeC detach, no change to SBU muxdts mode: on
chg mode: on
chg allowed: on
> ]
C1 st14
C1 st15
C1 st17
C1 st18
[477.416419 CCD: TypeC detach, no change to SBU mux]
C1 st14
[477.429336 CCD: connected noflip]
C1 st15
C1 st17
C1 st18
[477.716662 PD TMOUT RX 1/1]
RXERR1 Preamble
[477.719057 CCD: connected noflip]
[477.821226 PD TMOUT RX 1/1]
RXERR1 Preamble
[477.926535 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.031325 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.136171 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.241479 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.347623 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.452959 PD TMOUT RX 1/1]
RXERR1 Preamble
[478.558368 PD TMOUT RX 1/1]
RXERR1 Preamble
......