As the model hasn't been mentioned here yet, I thought I'd report that it also affects me on a ThinkPad X250 with Ubuntu 18.04.
The two commands in comment #16 do fix it momentarily.
As the model hasn't been mentioned here yet, I thought I'd report that it also affects me on a ThinkPad X250 with Ubuntu 18.04.
The two commands in comment #16 do fix it momentarily.