This happens for me as well with 20.04 and HP ZBook G5. But after turning of almost everything in the BIOS and discovering that it actually booted (without acpi=off), I eventually discovered that it works if I disable... the microphone(!). There are some errors, but it boots and is stable afterwards.
Erik -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805670 Title: 18.04 LTS - ACPI parsing errors in ZBook G5 Mobile Workstation: issues ex. suspend, touchpad To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805670/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs