On Wed, Aug 23, 2023 at 9:56 AM Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > So directly after resume the PCIe link (tunnel) from the Thunderbolt host router > PCIe downstream port does not get re-established and this brings down > the whole device hierarchy behind that port. The delay just made it take > longer but the actual problem is not the delay but why the tunnel is not > re-established properly. If you want to compare it to a "fast" resume (~5 sec, before commit e8b908146d44), here's dmesg: https://bugzilla-attachments.redhat.com/attachment.cgi?id=1984726 Even when the resume is fast, it takes a few extra seconds before the devices on the dock are usable in the OS. For example, my USB mouse connected to the dock doesn't work immediately, I have to wait a few more seconds. The ethernet on the dock also reconnects only after a few extra seconds. > Next question is that what's the Thunderbolt firmware version? You can > check it throughs sysfs: /sys/bus/thunderbolt/devices/0-0/nvm_version $ sudo cat /sys/bus/thunderbolt/devices/0-0/nvm_version 20.0 Here's whole `fwupdmgr get-devices` output, if that helps: https://bugzilla-attachments.redhat.com/attachment.cgi?id=1984728 Before reporting this bug, I updated the firmware on the Dock itself to the latest version (had to use Windows for that). The dock should have now this firmware: https://pcsupport.lenovo.com/us/en/downloads/DS506176 Which is: Tool package V1.0.25 TBT FW: C44 PD FW: 1.38.07 DP hub: 3.13.005 Audio: 04-0E-87_Rev_0087 according to the Readme file. That seems to match the "44" version in the fwupdmgr output. > I > see the BIOS you have seems to be quite recent (06/12/2023) so that > probably should be good enough. Lenovo seems to support it through LVFS, so that's what I use for updating the BIOS. Version 0.1.54 was updated quite recently and it seems to be also the latest version they have on their website.
