This is a bare metal installation, though I do have Docker and other development tools installed for work. If it would be helpful for debugging, I'm willing to do a fresh minimal install specifically for testing purposes. Should I stay on 24.04 LTS or test with 25.10? I've experienced the same issue on both versions.
Regarding the crash symptoms: You make a good point - I don't always get the flashing Caps Lock LED. That behavior seems inconsistent but overall I always have black screen and no input: Connecting monitors after boot: Usually causes immediate black screen Booting with monitors already connected: Inconsistent behavior Most frequent issue: System locks up on the boot logo screen - the spinner stops spinning, all input is lost (keyboard unresponsive), and only a hard power-off resolves it Sleep/wake and power saving crashes: If the system does successfully boot and run with monitors connected, it remains stable until either the computer sleeps or the monitors enter power saving mode. When the system attempts to wake the monitors, the screens go black with full backlight on, and I lose all input. For example, pressing Caps Lock or Scroll Lock doesn't toggle the LED indicators - the system is completely frozen and requires a hard power-off. The shutdown lockup I just experienced (attached in journalctl-b1.log) is actually a new variant I haven't seen before. Given the inconsistency how would you prefer I focus? -- 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
