I've been debugging a similar issue together with a Fedora user: https://bugzilla.redhat.com/show_bug.cgi?id=1871793 (note this bug is set to private atm, so you can likely not view this, I've asked the reporter if it is ok to open it up)
I see some comments here about things no longer working after a BIOS upgrade, here is what I wrote about this in the Fedora bug: "Sometimes BIOS upgrades don't clear the BIOS settings even though they should, causing the new BIOS to interpret the binary settings blob from the old BIOS in the wrong way. This may also cause hidden settings to be wrong. Have you tried loading the BIOS default or optimal settings?" And it turns out that on the reporters "Lenovo IdeaPad 5 14IIL05" the fix for this issue is the combination of: 1. Install the latest BIOS 2. Enter setup, load default or optimal settings. 3. Save settings, reboot Please give this a try and if this works, please let us know that this helped. If you are adding a comment about this helping or not, it would also be useful to know: 1. If you tried "pci=nocrs" with older BIOS versions and if that helped with the older BIOS 2. If you are still using "pci=nocrs" with the newer BIOS 3. If you are still using "pci=nocrs" with the newer BIOS, please try removing "pci=nocrs" from the kernel commandline, do things still work? Note for the Fedora reporter things worked with: 1. The old BIOS + "pci=nocrs" 2. The new BIOS + default-settings-load without needing "pci=nocrs" ** Bug watch added: Red Hat Bugzilla #1871793 https://bugzilla.redhat.com/show_bug.cgi?id=1871793 -- 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
