Tᴀᴋᴀɴᴀsʜɪ HᴏʀᴏDec 24, 2022
So this USB-C DP Alt Mode cable only works with the USB 3.2 Type-C port on my GPD Win Max 2, with spare USB 2.0 lanes for downstream USB devices. To get anything more than that I'll have to buy an actual Thunderbolt dock, which costs at least $200 and often more.
Show threadKevin Karhan Dec 24, 2022

@PeterCxy You may run ibto issues with those as well, depending on how they configure their setup.

Not every Thunderbolt Dock can handle DP Alterante Mode gracefully.

Show threadTᴀᴋᴀɴᴀsʜɪ HᴏʀᴏDec 24, 2022
@kkarhan I mean, TB docks with tunneled DP. That USB4 port on GPD Win Max 2 cannot even be switched into DP Alt Mode at all for some reason.
Show threadKevin Karhan Dec 24, 2022
@PeterCxy so #Softwin / #GPD botched the #USBC for some bs reason...
Show threadKevin Karhan Dec 24, 2022
@PeterCxy maybe they wanted to prevent people from accidentially using #eGPUs and still output video from the #iGPU, causing the PCOe link to be degraded into 2 lanes instead of 4.
Show threadTᴀᴋᴀɴᴀsʜɪ HᴏʀᴏDec 24, 2022
@kkarhan or maybe the problem is just some quirk in my usb-c hub. Who knows.
Show threadKevin Karhan 
@PeterCxy I guess only cross-checking devices would eliminate the irrelevant factors..
Dec 24, 2022 at 4:42amWeb