repeatedly chirps connect/disconect after monitor goes into standby

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If I let display timeout (Power settings 3 min), after a short bit the monitor will sense no HDMI signal and go into standby. Then it starts chirping randomly, maybe every 10 seconds, often connect/disconnect in a row, sometimes separate.

This is not a prob in Mint, However Neither system will go to sleep. However, I can PUT either system to sleep and it stays there until I wake it with a keyboard press.

Monitor is Dell curved screen S3221QS connected HDMI. Using Intel mobo HDMI port as I have no graphics card yet.

Any ideas what I’m missing?

Note, this stopped when I unplugged the HDMI cable, and did not restart chirping when I plugged it back in 20 secs later.

Thanks!

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I find that if I set turn off display to never and leave put the computer to sleep at 2 min, 2 min later it goes to sleep and does not chirp.

Further if I then set screen saver to 1 min, the screen saver appears at 1 min. The computer goes to sleep not at 2 min, but at approx 5 min, no chirps.

So I can bypass it but I still have the question why.

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The monitor chirps?
The monitor disconnects? How do you know?

cheers, Paul

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Settings/change system sounds/sound – sound scheme = windows default. This defines a sound for, among other things, Device connect and Device disconnect. Heard across the room it reminded me of a chirp, so called it that.

No, the monitor does not chirp. The sounds are produced by the realtek chipset hardware and used by the operating system software to play sounds through the speakers which are plugged into the speaker jack in the back of the motherboard.

These sounds stopped when I unplugged the HDMI cable going between the computer motherboard display output, and the monitor display input. They did not resume when I plugged the HDMI cable back in.

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It may be the monitor shutting down due to no video, which Windows detects as the monitor being unplugged.
Any settings on the monitor to stop it?

cheers, Paul

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As @Paul T pointed out, it sounds like the monitor is shutting down instead of staying in standby mode.

Blinking white light indicates it’s in Standby Mode, no light indicates it’s shutdown.

Check the Input Source settings on the monitor and ensure it’s set to Auto Select.

Check the Personalize settings on the monitor and ensure Fast Wakeup is set to On.

 

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Fast Wakeup was/is set to ON. Auto select is ON, it seems that when display is set to off by windows(via power settings), the monitor keeps trying to turn it back on, so windows senses that as device connected, device disconnected , endlessly. not just a couple times. Don’t know why the Dell is doing that but it is. If windows sends sleep, then it’s done.

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It’s beginning to look like the problem is setting Auto select to ON. That apparently causes the Dell monitor to continually poll all of the possible inputs if it looses connection on one. Set auto to off and no more connect/disconnect indications. Time will tell if this is it.

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yes, that fixed it. marked solved.

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