Slack is preventing my Mac from sleeping. I can see this information in the Activity Monitor.
How can I disable it? I want my mac to sleep even when Slack is open.
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Update 2021: same issue, the only way to allow my mac to go to sleep while plugged-in is to quit the Slack app... :(– MrYoshijiSep 3, 2021 at 12:59
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At some point after restarting my machine, slack stopped preventing my mac from sleeping. I have no idea what was changed.– bobsacamenoSep 5, 2021 at 9:31
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1I think it keeps it awake after you do a Huddle. I had to restart the app after a hudd to go back to not keeping it awake.– chamini2Oct 12, 2022 at 14:24
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Slack has recently been made aware of this issue.– Noel YapNov 14, 2022 at 19:40
1 Answer
It's the "Slack Helper" service preventing your mac from sleeping.
If you open the Activity Monitor and terminate the service, it will go to sleep.
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It might apply only when you use an HDMI monitor as your sound output: that is what I see by experimenting with switching to built in speakers.– nmgeekDec 24, 2022 at 19:48