Mac: “DisplayCal is already running” when starting the application

[ttk1102]

Hi,

i had to kill DisplayCal during a running measurement session since it didn’t have the correct permissions to capture my screen, and since i couldn’t access the System Settings application due to DisplayCal running full screen, i opened a Terminal and did a “kill -9”.

Since then, i get an error that DisplayCal is already running when i try to restart it. Since this error persists during reboots, i assume that DisplayCal is writing some sort of lock file which it detects now. I’d like to know where this lock file exists so that i can delete it and restart DisplayCal normally. Thanks.

[Florian Höch]

See https://hub.displaycal.net/issue/21633/

Btw, it is always possible to cancel measurements by pressing ESC or Q a few times, or using Command+TAB to bring the progress dialog to the front for cancelling.

[Author]

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