USB Touchscreen kills xHCI Controller

Open
#6,079 40 comments 1 reaction 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
linux
Domain
embedded-iot, operating-systems

Research direction

No source file or test is named. Start by reproducing the failure on a Raspberry Pi 5 running the reported Bookworm kernel, then inspect the xHCI and USB behavior using the provided dmesg sequence. Done means identifying the cause of the controller failure and verifying that connecting the MTouch USB touchscreen no longer disconnects other devices or requires a reboot.

Written by the indexing model from the issue text.

Description

Describe the bug

On Pi5 Bookworm an external usb touchscreens seems to kill the xHCI controller. The same device worked fine with a previous Pi4B (Bullseye).

I am trying to connect a touchscreen via USB and HDMI, unfortunately connecting the USB device seems to kill some of the other connected USB devices - until a reboot.

Thanks in advance!

Steps to reproduce the behaviour
  1. Boot with all devices connected except the touchscreen.
  2. Connect the USB touchscreen (with or without an additional powered USB Hub)
  3. The touchscreen doesn't work at all. Instead the xHCI Controller died.
Device (s)

Raspberry Pi 5

System
$ cat /etc/rpi-issue
Raspberry Pi reference 2024-03-15
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, f19ee211ddafcae300827f953d143de92a5c6624, stage4

$ vcgencmd version
2024/02/16 15:28:41
Copyright (c) 2012 Broadcom
version 4c845bd3 (release) (embedded)

$ uname -a
Linux fotobox 6.6.20+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.6.20-1+rpt1 (2024-03-07) aarch64 GNU/Linux
Logs

dmesg

...
[  855.080358] usb 1-2: new full-speed USB device number 3 using xhci-hcd
[  855.229606] usb 1-2: New USB device found, idVendor=0416, idProduct=c168, bcdDevice= 0.00
[  855.229611] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  855.229614] usb 1-2: Product: MTouch
[  855.229617] usb 1-2: Manufacturer: TSTP
[  855.229619] usb 1-2: SerialNumber: CMTP_1.0
[  865.656274] xhci-hcd xhci-hcd.0: xHCI host not responding to stop endpoint command
[  865.676453] xhci-hcd xhci-hcd.0: xHCI host controller not responding, assume dead
[  865.676464] xhci-hcd xhci-hcd.0: HC died; cleaning up
[  865.677182] usb 1-1: USB disconnect, device number 2
[  865.736634] usb 1-2: USB disconnect, device number 3
Additional context

No response

Dominant language
C
Stars
13.2k
Forks
5.5k
Avg merge
2d 21h
Merged PRs (30d)
21

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from raspberrypi/linux

All issues in raspberrypi/linux

Similar issues

More C issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.