Kai-Heng, thank you for providing the test kernel. Folks, if you need to add pci=nocrs to your kernel-commandline to get your touchpad to work, please test this kernel:
https://people.canonical.com/~khfeng/lp1878279/ With pci=no_e820 on the kernel commandline (replacing pci=nocrs). If the touchpad works this way, please provide DMI strings for your laptop, so that I can add a quirk to the kernel to automatically enable "pci=no_e820" on your laptop model. Run the following command *as normal user* to collect the DMI strings for your laptop: grep . /sys/class/dmi/id/* 2> /dev/null And copy and paste the output here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878279 Title: MSFT0004:00 06CB:CD98 Touchpad/trackpad mouse randomly not recognized from any given boot To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1878279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs