PROBLEM: Identified a USB 3.0 Cable likely either going bad or out-of- specifications, and now only compatible with USB 2.0.
Cable Matters SuperSpeed USB 3.0 Type A to B Cable in Black 10 Feet Item model number : 200007-BLACK-10 Date First Available : October 20, 2011 Manufacturer : Cable Matters ASIN : B00C7RZPJ0 SCENARIO: The ten foot USB 3.0 rated cable is connecting from the motherboard USB-3 port to the display included USB-3 rated hub, with two USB-2 peripheral input devices connect to the USB display hub. Although connected through the #1 USB-3 motherboard hub, errors were reporting on the #2 USB-3 motherboard hub/ports. SOLUTION: Connect the lengthy ten foot USB-3 cable inhibiting errors/failures on the motherboard USB-3 hub to a motherboard USB-2 hub. This newer recently purchased motherboard has USB-3 ports, whereas my older motherboard had only USB-2 ports. I also noted problems using a ten foot USB-2 rated cable with a USB printer, plugging into an external hub and with similar kernel printed errors/failures awhile ago, subsequently plugging the printer USB cable directly into the computer motherboard/PCI-E USB hub. NOTE: Probably a good idea for labeling these ten foot or lengthy cords, with labels noting only for use with USB-2 ports. It really baffles to-date that there are no decent front-ends or back- ends, reporting bad cables and/or connections due to lack of power/electrical current! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1749961 Title: xhci_hcd: TRB DMA errors reported with ASMedia ASM1142 USB 3.1 Controller Status in Linux: Confirmed Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: Won't Fix Status in linux source package in Xenial: Confirmed Status in linux source package in Bionic: Confirmed Status in linux source package in Focal: Confirmed Status in linux package in Debian: Confirmed Bug description: It was observed that while trying to use a 4K USB webcam connected to USB port provided by ASMedia ASM1142 USB 3.1 Controller, the webcam does not work and kernel log shows the following messages: [431.928016] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 [431.928021] xhci_hcd 0000:12:00.0: Looking for event-dma 0000003f3330e020 trb-start 0000003f3330e000 trb-end 0000003f3330e000 seg-start 0000003f3330e000 seg-end 0000003f3330eff0 [431.928024] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 [431.928026] xhci_hcd 0000:12:00.0: Looking for event-dma 0000003f3330e030 trb-start 0000003f3330e000 trb-end 0000003f3330e000 seg-start 0000003f3330e000 seg-end 0000003f3330eff0 [431.928027] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 [431.928029] xhci_hcd 0000:12:00.0: Looking for event-dma 0000003f3330e050 trb-start 0000003f3330e000 trb-end 0000003f3330e000 seg-start 0000003f3330e000 seg-end 0000003f3330eff0 [431.928386] xhci_hcd 0000:12:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13 A similar issue was already reported on Launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667750 The fix to this issue seems to be the following patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9da5a109 Tests in our scenario with this patch proved still broken. Our next approach is to modify the patch a bit and re-test. This LP will be used to document our progress in the investigation. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1749961/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
