It looks like a BIOS bug to me. But Windows does work, and Linux should, too. It looks like there's plenty of available space for 00:1f.5 BAR 0. Can you try a current version of Linux, e.g., v5.8-rc1 with the command line argument 'dyndbg="file drivers/pci/* +p"'? There were some significant resource assignment changes in v5.5.
AIDA64 (https://www.aida64.com/) has a free trial version that should show the PCI address map under Windows. I assume it probably moved 00:1f.5 BAR 0 to somewhere inside the PCI host bridge window. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1884232 Title: touchpad doesn't work at all on ACER Spin 5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1884232/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
