Quoted from Lenovo:
Yoda-1.0 (X1 Carbon 5th) only have Alpine Ridge AR-DP B1 (Device ID =
Lenovo Thunderbolt Dock also uses it.
0x1578 is previous Alpine Ridge chipset (2015), P70 (Payton) only has it.
Or other vendor dock may have it (Ex: HP Elite Thunderbolt 3 65W Dock etc.).
Alpine Ridge DP (B Step)
Alpine Ridge DP (C Step)
I doubt that customer plugged 3rtd party TBT device.
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Lenovo X1 Carbon Gen5 fails to resume
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