Just to add on to my last comment... something is really broken for my configuration - after ten minutes of trying to get all three monitors to wake up and play ball with the screen display settings windows and it only ever enabling two out of the three (sometimes 1 & 3, sometimes 1 & 2 and somethings 2 & 3), I gave up and rebooted.... and now it's fine.
Think will just have to disable the monitors from sleeping when the screen is locked...
Happy to investigate if given direction on what to look at on my system.
Just to add on to my last comment... something is really broken for my configuration - after ten minutes of trying to get all three monitors to wake up and play ball with the screen display settings windows and it only ever enabling two out of the three (sometimes 1 & 3, sometimes 1 & 2 and somethings 2 & 3), I gave up and rebooted.... and now it's fine.
Think will just have to disable the monitors from sleeping when the screen is locked...
Happy to investigate if given direction on what to look at on my system.