Ubuntu
linux package

  1. Bug #1884232
  2. Comment #12

Comment 12 for bug 1884232

Revision history for this message
Bjorn Helgaas (bjorn-helgaas) wrote : Re: touchpad doesn't work at all on ACER Spin 5

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.