There is one stack trace in the log but that is a warning (should not cause the system hang directly). Extracting the relevant data here for reference:
WARNING: CPU: 7 PID: 5030 at drivers/usb/typec/class.c:311 typec_altmode_update_active+0x101/0x110 [typec] dmi_sysfs autofs4 aesni_intel ] CPU: 7 UID: 0 PID: 5030 Comm: kworker/u32:8 Kdump: loaded Not tainted 6.17.0-14-generic #14-Ubuntu PREEMPT(voluntary) Hardware name: Dell Inc. XPS 13 7390 2-in-1/06CDVY, BIOS 1.35.0 12/17/2024 Workqueue: USBC000:00-con1 ucsi_poll_worker [typec_ucsi] RIP: 0010:typec_altmode_update_active+0x101/0x110 [typec] ucsi_altmode_update_active+0xac/0x190 [typec_ucsi] ucsi_check_altmodes+0x69/0xb0 [typec_ucsi] ucsi_poll_worker+0x3d/0x100 [typec_ucsi] process_one_work+0x18b/0x370 worker_thread+0x317/0x450 kthread+0x108/0x220 ret_from_fork+0x131/0x150 ret_from_fork_asm+0x1a/0x30 </TASK> In typec_altmode_update_active() this warning is triggered when getting a reference to a module (driver) fails. And the system seems to be still active once this happened. But at the end the connection gets lost and I suspect that is where the crash happens. One thing to try before other things, I vaguely recalled something like panic_on_oops but seems that got renamed since. So it might help to add "oops=panic" to the list of grub arguments and see whether that causes a dump. Otherwise, if non-secureboot is a temporary option, you could attempt to step through v6.17.9, v6.17.12, v6.18.7, and v6.19-rc8 from https://kernel.ubuntu.com/mainline/dashboard.html. Those are raw upstream kernels without any changes from Ubuntu. That would tell us whether it is something wrong in our delta (v6.17.9). whether it might be fixed in pending upstream fixes (v6.17.12) or future kernel versions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2141225 Title: Kernel panic when connecting USB-C Dell monitors on Ubuntu kernel 6.17.0-14-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.17/+bug/2141225/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
