Bug 218882

Summary: USB & ethernet stops working after hot-plugging thunderbolt dock
Product: Drivers Reporter: Christoph Blessing (chris24.blessing)
Component: HotPlugAssignee: Greg Kroah-Hartman (greg)
Status: NEW ---    
Severity: normal    
Priority: P3    
Hardware: Alpha   
OS: Linux   
Kernel Version: 6.1.90 Subsystem:
Regression: No Bisected commit-id:
Attachments: Dmesg output when booting with the dock attached
Dmesg output when unplugging the dock after booting
Dmesg output when hot-plugging the dock
lsusb -vv output after booting with dock
lsusb -vv output without dock
lsusb -vv output with hot-plugged dock
lspci -vv output after booting with dock
lspci -vv output without dock
lspci -vv output with hot-plugged dock

Description Christoph Blessing 2024-05-24 13:07:31 UTC
The USB ports and the ethernet port stop working on my Dell WD19TBS dock when hot-plugging it into my Dell Latitude 7340. Both work fine when the laptop boots with them attached.
Comment 1 Christoph Blessing 2024-05-24 13:08:36 UTC
Created attachment 306331 [details]
Dmesg output when booting with the dock attached
Comment 2 Christoph Blessing 2024-05-24 13:09:16 UTC
Created attachment 306332 [details]
Dmesg output when unplugging the dock after booting
Comment 3 Christoph Blessing 2024-05-24 13:10:00 UTC
Created attachment 306333 [details]
Dmesg output when hot-plugging the dock
Comment 4 Christoph Blessing 2024-05-24 13:20:13 UTC
Created attachment 306334 [details]
lsusb -vv output after booting with dock
Comment 5 Christoph Blessing 2024-05-24 13:20:50 UTC
Created attachment 306335 [details]
lsusb -vv output without dock
Comment 6 Christoph Blessing 2024-05-24 13:21:38 UTC
Created attachment 306336 [details]
lsusb -vv output with hot-plugged dock
Comment 7 Christoph Blessing 2024-05-24 13:25:10 UTC
Created attachment 306337 [details]
lspci -vv output after booting with dock
Comment 8 Christoph Blessing 2024-05-24 13:25:45 UTC
Created attachment 306338 [details]
lspci -vv output without dock
Comment 9 Christoph Blessing 2024-05-24 13:26:24 UTC
Created attachment 306339 [details]
lspci -vv output with hot-plugged dock
Comment 10 Christoph Blessing 2024-05-24 13:28:24 UTC
This happens on kernel version 6.1.90. On versions 6.8.9 and 6.9.0 USB, ethernet and HDMI do not work at all.

The firmware on the laptop and the dock are up to date.
Comment 11 Greg Kroah-Hartman 2024-05-24 13:32:51 UTC
On Fri, May 24, 2024 at 01:28:24PM +0000, bugzilla-daemon@kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=218882
> 
> --- Comment #10 from Christoph Blessing (chris24.blessing@gmail.com) ---
> This happens on kernel version 6.1.90. On versions 6.8.9 and 6.9.0 USB,
> ethernet and HDMI do not work at all.
> 
> The firmware on the laptop and the dock are up to date.

And this really is on an alpha platform?

Please send this information to the linux-usb@vger.kernel.org mailing
list.

Also, why doesn't the newer versions work at all?

thanks,

greg k-h
Comment 12 Christoph Blessing 2024-05-24 14:51:26 UTC
(In reply to Greg Kroah-Hartman from comment #11)
> On Fri, May 24, 2024 at 01:28:24PM +0000, bugzilla-daemon@kernel.org wrote:
> > https://bugzilla.kernel.org/show_bug.cgi?id=218882
> > 
> > --- Comment #10 from Christoph Blessing (chris24.blessing@gmail.com) ---
> > This happens on kernel version 6.1.90. On versions 6.8.9 and 6.9.0 USB,
> > ethernet and HDMI do not work at all.
> > 
> > The firmware on the laptop and the dock are up to date.
> 
> And this really is on an alpha platform?
> 
> Please send this information to the linux-usb@vger.kernel.org mailing
> list.
> 
> Also, why doesn't the newer versions work at all?
> 
> thanks,
> 
> greg k-h

Hello, thanks for looking into this. What do you mean by "alpha platform"? The laptop is running NixOS. I do not know why they don't work on newer kernel versions.