I have successfully run the system without the USB hubs, and with the Realtek Wi-Fi adapter plugged directly into the system. The system still experienced a hard hang at 16:02:18 (GMT+0530). The latest USB logs (attached below) show a clean initialization of all USB devices and drivers, confirming that the USB subsystem is NOT the root cause of the hard lockup. I am attaching the logs for your reference.
** Attachment added: "15-Oct-25.zip" https://bugs.launchpad.net/ubuntu/+bug/2127687/+attachment/5918034/+files/15-Oct-25.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2127687 Title: Unreliable Hard System Freeze/Kernel Lockup on Browser Notification (Ubuntu 25.10 / Kernel 6.17) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2127687/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
