I have a Lenovo Thinkpad and a Lenovo dock station....everything was working well until last night. Now the second screen will not mirror the PC screen and when I close the PC screen the Monitor screen also goes blank. I cannot see anything weird in the log apart from 4 of these meaningless 00/00 lines coloured red over the last 24 hours or so...
Jan 30 15:19:27 joan--Carbon kernel: [ 39.505511] ---[ end trace c293571185b7f534 ]---
Jan 30 15:20:44 joan--Carbon systemd-modules-load: Inserted module 'lp'
I can only presume that something has been corrupted....but what? Suggestions very much appreciated!