Linux 6.3 Adds Thunderbolt/USB4 DisplayPort Bandwidth Allocation Mode

phoronix

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Linux 6.3 Adds Thunderbolt/USB4 DisplayPort Bandwidth Allocation Mode

01 March 2023, 03:30 PM

Phoronix: Linux 6.3 Adds Thunderbolt/USB4 DisplayPort Bandwidth Allocation Mode

Earlier this week Greg Kroah-Hartman submitted the USB/Thunderbolt subsystem updates for the ongoing Linux 6.3 kernel merge window...

Linux 6.3 Adds Thunderbolt/USB4 DisplayPort Bandwidth Allocation Mode - Phoronix

https://www.phoronix.com/news/Linux-6.3-USB-Thunderbolt

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edwaleni

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02 March 2023, 11:22 AM

FWIW: I don't see a lot of Linux users using their USB4 port for eGPU gaming. So I can see where DP Alt might be more desirable for traditional use cases, especially since most TB and USB docks support it.

I am currently testing a PC with the AMD USB4 host controller. Both Thunderbolt 3 and USB-C docks work fine. (At least the HP ones I tested did)

Several NVME to USB 3.2 bridge chips all test out at 7Gbps (read) on the USB4 port.

The AMD controller is a Gen 4, 16 lane device.
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