x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' run with xf86-input-synaptics or without (no difference) > this gave some improvement (trackpad fails a lot less, but still failing!) kernel paramets: "psmouse.synaptics_intertouch=0 psmouse.proto=any psmouse.resetafter=1 psmouse.rate=200" add kernel parameters: "psmouse.synaptics_intertouch=0" add kernel parameters: "psmouse.synaptics_intertouch=1" add "blacklist i2c_i801" to /etc/modprobe.d/nf echo 'on' | sudo tee /sys/devices/platform/i8042/serio1/power/control
removing tlp and other energy saving software I have read following bug reports, articles etc: psmouse: probe of serio2 failed with error -1 rmi4_smbus 0-002c: Failed to resume device: -6 rmi4_physical rmi4-00: Failed to suspend functions: -6
rmi4_f01 rmi4-00.fn01: Resume failed with code -6. rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -6. rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read current IRQ mask. rmi4_smbus 0-002c: failed to get SMBus version number! At random either after boot or suspend the trackpad and/or trackpoint fails. Unfortunately the trackpad an trackpoint are working very unreliable. I have just gotten a T450s and have installed Arch on it (5.3.13-arch1-1). Then it will not even go on suspend and I have to power down the machine for at least half an hour. Maybe it also will completly break and the touchpad goes out the window, too. Then only suspend several times will maybe at some point help.
If it's on suspend only for a short time it will consistently break and come back without trackpoint/buttons. So after some time living with this unresolved issue (getting more and more frustrated with it) I realized that whenever the computer has been on suspend for a longer time period (maybe ~30 min) it comes back fully functional with trackpoint and everything working. It's only annoying because the mouse buttons then also stop functioning. Honestly it's not too bad and everything works most of the time. Without having any changes the trackpad stays stable and the trackpoint fails sometimes coming back randomly again. I have tried going back to 0, before I changed anything and I noticed that with the "fixes" it actually had gotten worse.