App · Telegram (messaging app)
Why Telegram keeps your Mac awake
Telegram keeps the display on during a call (“Phone Call”) and while a video plays (“Video Playing”). Both are NoDisplaySleepAssertion and end with the call or the video. The microphone and camera also appear under coreaudiod and cameracaptured during a call.
Checked on macOS 27.2.1 on a MacBook Pro with Apple silicon, 11 November 2026.
What you’ll see
| Type | Name | Meaning |
|---|---|---|
NoDisplaySleepAssertion | Phone Call | A call is in progress. |
NoDisplaySleepAssertion | Video Playing | A video is playing. |
Check it on your Mac
Open Terminal (in Applications › Utilities) and run:
pmset -g log | grep Telegram
Real output from the Mac we checked:
2026-11-11 20:51:39 +0200 Assertions PID 24159(Telegram) Created NoDisplaySleepAssertion "Phone Call" 00:00:00 id:0x0x500009275 [System: PrevIdle PrevDisp DeclUser IntPrevDisp kDisp] 2026-11-11 18:51:45 +0200 Assertions PID 24159(Telegram) Created NoDisplaySleepAssertion "Video Playing" 00:00:00 id:0x0x5000089ca [System: PrevIdle PrevDisp DeclUser IntPrevDisp kDisp]
Activity Monitor shows the same thing without Terminal: open its Energy tab and look at the Preventing Sleep column.
What to do
- End the call or stop the video. If it stays after that, quit and reopen Telegram.
See it without Terminal
SleepPilot, a menu bar app, lists every app that is keeping your Mac awake right now by name — audio through coreaudiod is shown under the app that plays it — and warns you when one holds the Mac awake for too long while nobody is using it. Each morning it can show what kept the Mac awake overnight.
Questions
Is it safe to quit Telegram?
Yes.
Is Telegram keeping my Mac awake normal?
Normal during calls and videos.
Does Telegram keep the display on?
The display on.