Can't tell if it's the same problem, but a recent (<1 month) update on a Lenovo T450s running 20.10 has led me to these symptoms: closing the lid or calling suspend leaves the machine dark and unusuable until I hold down the power button for 10 seconds to reboot.
Can't tell if it's the same problem, but a recent (<1 month) update on a Lenovo T450s running 20.10 has led me to these symptoms: closing the lid or calling suspend leaves the machine dark and unusuable until I hold down the power button for 10 seconds to reboot.