On Mon, Apr 04, 2016 at 02:53:17PM -0500, Bjorn Helgaas wrote: > On Mon, Apr 04, 2016 at 04:01:42PM +0200, Martin Andersson wrote: > > Hi all, > > > > I have a Dell XPS 13 9350 laptop with a Dell Thunderbolt 3 dock (TB15) > > that I'm trying to get to talk to each other. I hope this is the right > > forum. > > > > Lukas Wunner was kind enough to give me some pointers and after > > upgrading the thunderbolt firmware and disabling all the security > > settings for thunderbolt in the bios I'm able to see a usb hub > > (ASMedia Technology) from the dock with lspci. But that's it. Nothing > > happens when I attach any usb devices to the dock and I see no sign of > > the ethernet or audio devices in the dock. > > > > cut from lspci -vv: > > > > 09:00.0 USB controller: ASMedia Technology Inc. ASM1042A USB 3.0 Host > > Controller (prog-if 30 [XHCI]) > > Subsystem: ASMedia Technology Inc. ASM1042A USB 3.0 Host Controller > > Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- > > ParErr- Stepping- SERR- FastB2B- DisINTx- > > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > > <TAbort- <MAbort- >SERR- <PERR- INTx- > > Interrupt: pin A routed to IRQ 18 > > Region 0: Memory at c4100000 (64-bit, non-prefetchable) [size=32K] > > Capabilities: <access denied> > > Kernel driver in use: xhci_hcd > > > > > > Also I only see the usb hub when I boot with the dock attached. I have > > tried with pcie_hp=nomsi and echo "1" > /sys/bus/pci/rescan with no > > luck. But hotplug is, of course, not my main concern at this point ;) > > > > Should I open a bug at the kernel bugzilla and attach dmesg logs? > > Looks like https://bugzilla.kernel.org/show_bug.cgi?id=115121 This looks possibly relevant: http://marc.info/?l=linux-acpi&m=145929159015853&w=2 I believe it was sussed out on a Dell Precision 5510, with the Dell tb3 dock. I actually have said dock and a 3510 here in hand, and have been meaning to give Prarit's patch a spin myself. -- Jarod Wilson jarod@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
