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X670E HERO: USB hiccups caused by Thunderbolt controller

ScaryBandana
Level 9

Hi,

The USB connection of my X670E HERO has extreme hiccups caused by the Thunderbolt controller.

The problem manifests itself in the fact that every few seconds the USB connection drops for a moment, noticeable by a brief pause in the cursor movement, USB audio and LED animations of my peripherals. The interval between hiccups seems to shorten when I start higher USB activity, e.g. copying files to a USB stick. The said pauses are caused by the Thunderbolt Controller 1137. The hiccups disappear as soon as I apply one of the following workarounds

- Device Manager -> Thunderbolt Controller 1137 -> Power management -> Disable Allow the computer to turn off this device to save power.

- Power plan -> Change advanced power settings -> USB settings -> Set USB selective power saving setting to Disabled.

- Uninstall Thunderbolt driver so that Thunderbolt Controller 1137 is no longer active.

- Disable Thunderbolt in BIOS.

System:
AMD Ryzen 9 7950X3D
AMD Radeon RX 7900 XTX
ASUS ROG CROSSHAIR X670E HERO
G.SKILL Trident Z5 RGB 64GB DDR5-6000 CL30 (F5-6000J3040G32GX2-TZ5NR)
SAMSUNG 980 PRO (2TB), WD_BLACK SN850 (500GB) (WDS500G1X0E-00AFY0)

In the power settings, I set it to high performance with the setting that selective USB power saving is disabled.

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1 REPLY 1

ScaryBandana
Level 9

Update: I booted my system with an Ubuntu 24.04.1 LTS (Live USB) and the problem also occurs there. If I disable selective USB Suspend (boot with kernel argument usbcore.autosuspend="-1") the problem no longer occurs. I would therefore rule out a problem with the Thunderbolt driver on OS level. Possibly a bug in the Thunderbolt NVM Firmware or in the BIOS?