Thanks! Adding acpi_rev_override does the trick! I set it to "fix released" even if "workaround documented" would be more appropriate.
** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1678590 Title: Dell Inspiron on kernel 4.10 : battery detected only after AC power adapter event To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs