Hi Christian, On Mon, Jan 30, 2023 at 04:10:12PM +0200, Mika Westerberg wrote: > Hi, > > On Mon, Jan 30, 2023 at 11:52:59AM +0100, Christian Schaubschläger wrote: > > Hi, > > > > Am 27.01.23 um 13:27 schrieb Mika Westerberg: > > > Yeah, I just got report from the folks and unfortunately we were not > > > able to reproduce the issue in the lab. The PCIe tunnel stays up (or > > > gets re-created) after reboot from Linux and is visible in the UEFI > > > shell (so in the BIOS). > > > > > > So at the moment I'm out of ideas why this happens since Windows flows > > > should be the same. And we have no means to repro it locally to > > > investigate further :/ > > > > Ok. I try to get access to some more TB4 devices. Currently I have two > > (HP, Lenovo) that show the issue when the software connection manager > > is used. > > We should be getting one HP EliteBook 630 G9 soon (I guess this is one > of the systems you see the issue). Once we get it we will try to repro > and investigate further. We are able to reproduce the issue and it was root caused to be missing UNSET_INBOUND_SBTX port operation during retimer enumeration. I posted a series of fixes few minutes ago (with you Cc'd) and one of them should fix this issue: https://lore.kernel.org/linux-usb/20230306113605.46137-3-mika.westerberg@xxxxxxxxxxxxxxx/
