I am using Ubuntu 18.04 on a Lenovo Thinkpad T480s.
And suspend no longer works.
- When triggering suspend through the power options, it takes me to the login screen instead of suspending. After entering my password it goes to sleep.
- Similarly, when closing the lid, the laptop stays powered on (fan spinning and LED is solid). I open the lid and I see the login screen. After entering my password it goes to sleep.
How can I find the cause of this issue?