How do you stop MBP from sleeping with external display off?

[dingobiatch]

I'm in clamshell mode, using an external monitor. There's currently a bug with my system where my computer crashes sometimes after it sleeps. Not sure why, but for now, I want to stop my system from sleeping.

The issue is, if I turn my monitor off while I'm in clamshell mode, the system seems to go to sleep even though I specifically have 'prevent Mac from automatically sleeping when the display is off' checked.

What's going on here?

 

[jdb8167]

I'm in clamshell mode, using an external monitor. There's currently a bug with my system where my computer crashes sometimes after it sleeps. Not sure why, but for now, I want to stop my system from sleeping.

The issue is, if I turn my monitor off while I'm in clamshell mode, the system seems to go to sleep even though I specifically have 'prevent Mac from automatically sleeping when the display is off' checked.

What's going on here?

I haven’t tried your specific use case but this disables sleep when I’m in clamshell and the power is disconnected. From the terminal:

sudo pmset disablesleep 1

To return to normal

sudo pmset disablesleep 0