First of all, I forgot that this issue was for "thinkpad thunderbolt 3
dock gen2" specifically. Sorry.
Anyway, I leave this as a note for other people who came here from the
Arch Linux wiki: The mainline kernel (6.2-rc2) works without bugs (in my
case). I have been testing it for a week, and I
Thanks, Jonas. This bugzilla has a lot of stuff going on, and it's not
clear yet whether the issue you're seeing is the same, so can you please
open a new report?
Use the "File a Bug" button at https://bugzilla.kernel.org/ and the
Drivers/PCI product/component. After you open the issue, the
Thanks for the great work!
Hotplugging thunderbolt docks definitely work better, but I still have a
couple issues.
Before I start, here is some info about my setup.
I use KDE on Arch Linux, but it shouldn't affect the problem. uname -a prints:
Linux MyPC 6.1.1-arch1-1 #1 SMP PREEMPT_DYNAMIC
Thanks for those! It's a little overwhelming, but I don't see any
issues related to the comment #62 patch. It seems to work as I expect
on your system.
There are definitely dock hotplug issues and the performance issue, but
those are problems for different reports.
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Since your laptop does match d341838d776a, I don't think the comment #62
patch will make much difference. It will likely change MMCONFIG
messages from "reserved in E820" to "reserved in ACPI motherboard
resources", but won't change the behavior.
No need to repeat with v6.1-rc7. A single .tgz or
Yes, it is overwhelming, isn't it.
The only thing that seems to stick out for me is when I sdiff pairs of
lsmod and lsusb files where it seems like the states of the devices
should return to the initial states after plugging or unplugging the
TBT4 Dock.
For example, when I sdiff these two files,
p.s. Yes Bjorn, your patch from commentt #62 worked perfectly, even
after I removed the Clevo Entry from the pci_crs_quirks[] array.
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Created attachment 303339
6.0.10 Logs
Bjorn --
Attached anker-tests-e..f-tar.gz
Manifest is below.
I went ahead and included all the logs I had already gathered yesterday
after reading this thread.
Notable:
1. The Patches I applied are in
kernel_config_debug/linux-6.0.10.kjh_dp.patch
2.
Bjorn --
My Laptop does match d341838d776a
# dmesg -t |grep DMI:
DMI: Notebook X170KM-G/X170KM-G, BIOS 1.07.08LS1 01/11/2020
I've already built 6.0.10 with your patches and I booted yesterday
afternoon with these CommandLine Args:
ro nvidia-drm.modeset=1 thunderbolt.dyndbg=+p efi=debug
Bjorn --
Not to butt in, but ...
If you want it, I've built 6.0.10 with your Patches and I ran the same
tests.
I've got a Sager NP9672M Laptop which is a rebranded Clevo X1170KM-G
I've been working with Mika on Bug 214259 - Discrete Thunderbolt
Controller 8086:1137 throws DMAR and XHCI errors
Hi Konrad, you're not butting in at all!
Things got a little tangled up here. I think bug 214259 describes two
issues:
1) Hot-added devices, e.g., an ethernet NIC in a dock, don't work. This
should be helped by https://git.kernel.org/linus/d341838d776a, which
appeared in v5.19, but only for
Created attachment 303327
dmsg of experimental patch, dock attached after boot 2
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Title:
thinkpad thunderbolt 3 dock gen2 with pci
ofc uploaded the dmesg with the new patch
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on
Yoga C940
Created attachment 303326
dmsg of experimental patch, dock attached before boot 2
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Title:
thinkpad thunderbolt 3 dock gen2 with pci
Created attachment 303314
add resource clip debug
Thank you very much, Werner! I was confused about why your machine has
DMI_BOARD_NAME "X170KM-G", but didn't match the quirk in d341838d776a
("x86/PCI: Disable E820 reserved region clipping via quirks"), but I see
that in comment #62 I suggested
Created attachment 303309
dmsg of experimental patch, dock attached after boot
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Title:
thinkpad thunderbolt 3 dock gen2 with pci
Created attachment 303308
dmsg of experimental patch, dock attached before boot
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Title:
thinkpad thunderbolt 3 dock gen2 with pci
Tested on Clevo X170KM seems to work. Attached dmesg with dock attached
during boot and dock attached after boot.
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Title:
thinkpad
I'd love to help you out Bjorn; Unfortunately, I no longer have easy
access to the original hardware.
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Title:
thinkpad thunderbolt
Created attachment 303237
experimental patch
That patch (d341838d776a ("x86/PCI: Disable E820 reserved region
clipping via quirks")) relies on quirks that match DMI Vendor, Product
Version, Product Name, and Board Name. This isn't an ideal solution
because there are likely other systems we don't
>From the dmesg log in
https://bugzilla.kernel.org/attachment.cgi?id=287483,
BIOS-e820: [mem 0x4bc5-0xcfff] reserved
pci_bus :00: root bus resource [mem 0x6540-0xbfff window]
pci :00:07.1: PCI bridge to [bus 2b-54]
pci :00:07.1: bridge window
I'm also affected by this bug on 20.04 with the HWE 5.13 kernel
(currently: 5.13.0-30-generic #33~20.04.1-Ubuntu SMP Mon Feb 7 14:25:10
UTC 2022 x86_64 x86_64 x86_64 GNU/Linux). My PCIe Thunderbolt card (ASUS
ThunderboltEX 4, Intel JHL8540 controller) only partially works: the USB
part works and
** Bug watch added: Linux Kernel Bug Tracker #214259
https://bugzilla.kernel.org/show_bug.cgi?id=214259
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Title:
thinkpad
*** Bug 214259 has been marked as a duplicate of this bug. ***
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation
Just wanted to leave a note here that this issue continues to be a
problem with descrete thundebold 4 chips:
https://bugzilla.kernel.org/show_bug.cgi?id=214259
The hack from https://bugzilla.kernel.org/show_bug.cgi?id=206459#c46
fixes the dock on that Laptop, the cleaner hack I have yet to try.
Just a testing update: As of today (2020-11-12), the patch:
- Still hasn't landed
- Still applies cleanly on kernel 5.10-rc3
- Is still needed, otherwise thunderbolt doesn't work at all on affected
hardware upon reconnect.
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Any updates on if a fix for this has arrived? So far I've just been
applying the patch (287661) and compiling the kernel myself for my Yoga
C940, but it's rather finnicky.
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I suggest you to reply on that email thread that there is a real problem
that needs to be solved so we get some traction from the maintainers.
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Hi, sorry about this. I did not get any comments from x86 maintainers
for this and the comment from Bjorn (the author of the original code)
seems to suggest rather big rework so I simply haven't had time to look
at it at the moment. Can send a ping on that thread? Maybe we get some
x86 maintainers
I just resent the patch. Hopefully it lands mainline at some point :)
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory
Launchpad has imported 54 comments from the remote bug at
https://bugzilla.kernel.org/show_bug.cgi?id=206459.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
** Also affects: linux via
https://bugzilla.kernel.org/show_bug.cgi?id=206459
Importance: Unknown
Status: Unknown
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There is now a working patch on the upstream bug
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on
Still no luck with 5.5.4
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on
Yoga C940 unless plugged
unfortunately, same results with BIOS AUCN54WW (manually installed,
since not offered by either lenovo system update nor windows update).
Same symptoms.
Same symptoms also on with kernel mainline 5.5.3
For reference, dock firmware is V3.1.66
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Please test latest BIOS AUCN54WW.
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on
Yoga C940 unless
Reported upstream on Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=206459
** Bug watch added: Linux Kernel Bug Tracker #206459
https://bugzilla.kernel.org/show_bug.cgi?id=206459
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Still the same on 5.5.2
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Title:
thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on
Yoga C940 unless plugged in
With kernel mainline 5.5.1, it does get a little bit further, only BAR
14 and 0 fail to assign on the second try. See attached dmesg. But
symptoms are still identical: no peripherals work except for video.
Any way I can systematically search for a workaround using pci= kernel
parameters?
**
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/
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Title:
thinkpad thunderbolt 3 dock gen2
** Summary changed:
- thinkpad thunderbolt 3 dock gen2 does not work on Yoga C940 unless plugged in
before boot
+ thinkpad thunderbolt 3 dock gen2 with pci memory allocation errors on Yoga
C940 unless plugged in before boot
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This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
thinkpad thunderbolt 3 dock
** Attachment added:
"ubuntu_5.3.0-26_working_dmesg_dock_plugged_before_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321565/+files/ubuntu_5.3.0-26_working_dmesg_dock_plugged_before_boot.txt
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** Attachment added:
"ubuntu_5.3.0-26_notworking_lspci_dock_plugged_after_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321563/+files/ubuntu_5.3.0-26_notworking_lspci_dock_plugged_after_boot.txt
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Public bug reported:
I have thinkpad thunderbolt 3 dock gen2 dock I am trying to use with a
New Lenovo Yoga C940 laptop.
- The dock works fine when plugged-in before boot.
- The dock does NOT work when plugged after the system booted.
- The dock does NOT work when plugged-in at boot,
** Attachment added:
"ubuntu_5.3.0-26_working_lsusb_dock_plugged_before_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321567/+files/ubuntu_5.3.0-26_working_lsusb_dock_plugged_before_boot.txt
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** Attachment added:
"ubuntu_5.3.0-26_working_lspci_dock_plugged_before_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321566/+files/ubuntu_5.3.0-26_working_lspci_dock_plugged_before_boot.txt
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** Attachment added:
"ubuntu_5.3.0-26_notworking_dmesg_dock_plugged_after_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321562/+files/ubuntu_5.3.0-26_notworking_dmesg_dock_plugged_after_boot.txt
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** Attachment added:
"ubuntu_5.3.0-26_notworking_lsusb_dock_plugged_after_boot.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860284/+attachment/5321564/+files/ubuntu_5.3.0-26_notworking_lsusb_dock_plugged_after_boot.txt
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