Hi, On Wed, May 15, 2024 at 10:35:22PM +0200, Lukas Wunner wrote: > On Wed, May 15, 2024 at 02:53:54PM -0400, Esther Shimanovich wrote: > > On Wed, May 8, 2024 at 1:23???AM Lukas Wunner <lukas@xxxxxxxxx> wrote: > > > On Wed, May 01, 2024 at 06:23:28PM -0400, Esther Shimanovich wrote: > > > > On Sat, Apr 27, 2024 at 3:17AM Lukas Wunner <lukas@xxxxxxxxx> wrote: > > > > That is correct, when the user-visible issue occurs, no driver is > > > > bound to the NHI and XHCI. The discrete JHL chip is not permitted to > > > > attach to the external-facing root port because of the security > > > > policy, so the NHI and XHCI are not seen by the computer. > > > > > > Could you rework your patch to only rectify the NHI's and XHCI's > > > device properties and leave the bridges untouched? > > > > So I tried a build with that patch, but it never reached the > > tb_pci_fixup function > > That means that for some reason, the PCI devices are not associated with > the Thunderbolt ports. Could you add this to the command line: > > thunderbolt.dyndbg ignore_loglevel log_buf_len=10M > > and this to your kernel config: > > CONFIG_DYNAMIC_DEBUG=y > > You should see "... is associated with ..." messages in dmesg. > This did work for Mika during his testing with recent Thunderbolt chips. > I amended the patches after his testing but wouldn't expect that to > cause issues. > > @Mika, would you mind re-testing if you've got cycles to spare? Sure, I'll try this today and update.