*** This bug is a duplicate of bug 1786574 *** https://bugs.launchpad.net/bugs/1786574
I face the same issue with a lenovo thinkpad t420. After suspending the left mouse button does not work. Everything else works fine. I tried your suggestions with uncommenting i2c_i801 and adding "psmouse.synaptics_intertouch=0" to grub. First I tried uncommenting; this did not work. Then I added "psmouse.." to grub and keep i2c_i801 uncommented; this did not work. After that I tried only addind "psmouse.." to grub which also did not work. I also tried to delete and add psmouse and i2c_i801 from kernel with modprobe. Also no changes. Another strange thing is, if I run "xinput list" and choose the id of "SynPS/2 Synaptics TouchPad" and run "xinput --test 11" I get the following result after pressing left button (1) first and then right button (3): button press 1 button release 1 button press 3 button release 3 So it seems that the system is notified about it.. Here are some details about the system: $ cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-5.3.0-59-generic root=UUID=4a0ef122-9e1d-4b72-bcd7-928b326d1a9e ro quiet splash psmouse.synaptics_intertouch=0 vt.handoff=1 $ uname -a Linux devicename 5.3.0-59-generic #53~18.04.1-Ubuntu SMP Thu Jun 4 14:58:26 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/os-release NAME="Ubuntu" VERSION="18.04.4 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.4 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic Finally one thing which works independently from both changes (i2c_i801 and modifying grub) is to switch to another tty like pressing CTRL+ALT+F3 and switching back with CTRL+ALT+F2. But I do not have any idea, what is loaded or unloaded after doing this. Let me know if you need more details.. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788928 Title: psmouse: after sleep/suspend thinkpad touchpad not functional To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788928/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs