@thorsten Thanks.
I loaded the kernel from #94, having set the BIOS to use S3 sleep and having removed that driver from the blacklist. Result: after a fairly long sleep (15 minutes, I think) the touchpad stopped working. I tried a workaround, with no success: # echo 1 > /sys/devices/rmi4-00/nosleep bash: /sys/devices/rmi4-00/nosleep: Permission denied But perhaps I need still higher privileges for that command. Touchpad and trackpad drivers: I have installed everything that `fwupdmgr`, and the Lenovo update utility (via a WindowsToGo install) offered me. What versions of what drivers do we need? (I note also that the WindowsToGo install showed no errors about the trackpad in the log, although admittedly I don't think I tried WindowsToGo when I had s3 enabled in the BIOS.) Logs: `dmesg | grep pad` and `dmesg | grep point` show nothing relevant. `dmesg | grep sleep` yields this: [ 160.378036] ACPI: Preparing to enter system sleep state S3 [ 160.567710] cache: parent cpu1 should not be sleeping [ 160.568369] cache: parent cpu2 should not be sleeping [ 160.569015] cache: parent cpu3 should not be sleeping [ 160.569727] cache: parent cpu4 should not be sleeping [ 160.570383] cache: parent cpu5 should not be sleeping [ 160.571041] cache: parent cpu6 should not be sleeping [ 160.571697] cache: parent cpu7 should not be sleeping [ 160.578374] ACPI: Waking up from system sleep state S3 [ 160.915793] rmi4_f01 rmi4-00.fn01: f01 old_nosleep: 0. [ 180.058157] ACPI: Preparing to enter system sleep state S3 [ 180.237233] cache: parent cpu1 should not be sleeping [ 180.237890] cache: parent cpu2 should not be sleeping [ 180.238560] cache: parent cpu3 should not be sleeping [ 180.239271] cache: parent cpu4 should not be sleeping [ 180.239930] cache: parent cpu5 should not be sleeping [ 180.240605] cache: parent cpu6 should not be sleeping [ 180.241280] cache: parent cpu7 should not be sleeping [ 180.247963] ACPI: Waking up from system sleep state S3 [ 180.583836] rmi4_f01 rmi4-00.fn01: f01 old_nosleep: 1. Other logs: coming up . . -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1791427 Title: Touchpad and/or trackpoint stop working after S3 suspend on Lenovo X1 Carbon 6th To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs