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S2716DG buzzing?

I got a new S2716DG a couple of days ago, and so far I like the monitor.  It's an A03 with an April 2016 build date.  The one odd thing is that it's pretty easy to get it to make an audible buzzing sound by playing with the brightness.

At the default (75), it doesn't usually buzz.  But if I start lowering the brightness, it will start buzzing somewhere in the 30 - 40 range.  And once it starts buzzing, it won't stop until I raise it to around 80 or so.  Then I can drop it back to the default again with no buzzing.

A quick google search makes it sound like this has happened to other people, and I even found workarounds like using the Nvidia software to tweak the brightness from the PC side.  But since this is a brand new monitor, is this considered a defect and should I ask for an exchange?

(And before anyone asks, I tried different refresh rates, Gsync on / off, etc.  None of it seems to make a difference.  And I've got an EVGA GTX 1080 FTW with the latest drivers.)

Thanks.

19 Replies
Moderator
Moderator

RE: S2716DG buzzing?

There has not been a revision released to address buzzing. All of the S2716DG tested meet our manufacturer specifications for noise dB levels. Based on other users reports, they all have some buzzing if you move away from the Factory default of Brightness 75, Contrast 75.

Getting an exchange will not change this scenario. Return the S2716DG to Factory defaults of Brightness 75/Contrast 75. Then make Brightness and Contrast adjustments within the video card control panel. 

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RE: S2716DG buzzing?

Thanks for your help.  So you're saying an expensive monitor is SUPPOSED to make a noise you can readily hear from a normal seating position in front of the monitor?  

Thanks again for your help.

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Moderator
Moderator

RE: S2716DG buzzing?

I am saying that anytime you deviate from the Factory Default of 75/75, anomalies come into play. So stay at the Factory Defaults and make adjustments within the video card driver.

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Velobro
Copper

RE: S2716DG buzzing?

My monitor has the same issue, but I chose to use the display driver workaround instead of going through the hassle of returning/exchanging. I just want you to be perfectly clear. Are you suggesting that a product purchased from Dell is only good at factory settings and any defects caused by the modification are not Dell's problem?

anytime you deviate from the Factory Default of 75/75, anomalies come into play. All of our testing and validation is done at 75/75. So, yes, we will instruct that you go back to the manufacturer factory settings.

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Dojii
Copper

RE: S2716DG buzzing?

I bought mine from Best Buy.  It didn't hum the first day.  Sometimes it takes a while to warm up before it starts humming.  I exchanged it for another one because I really didn't like the buzzing or humming.  

The new one didn't start buzzing till day 2 or 3.  So yea I exchanged it and the new one buzzes too.  Mine Buzzes with factory defaults so that response from Dell doesn't really address the issue.  

If I raise it to 80/82  it will make a small clicking noise, and stop buzzing.  then I can lower it back to 75.  It wont' buzz until I turn the monitor back on.  

Not sure what's causing this issue but it seems to happen normally, even though I really don't like it.  Maybe Dell can make some drivers or suggestions on how to work around this.

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Dojii
Copper

RE: S2716DG buzzing?

@Velobro what did you do in your display driver to stop the humming?  I still have 10 days to return mine and I am seriously considering it.

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johnh442
Copper

RE: S2716DG buzzing?

Mine does it too, wondering if I should return.  It buzzes even on the factory settings...to get it to stop, I have to manually adjust the brightness to 95+ and then I can lower it.   Don't understand why that would be...  So no Deviation from factory settings and its does it.

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johnh442
Copper

RE: S2716DG buzzing?

Well I got an exchange from Dell, seemed to be fine for a few days...and now the same thing.  This is AT the factory settings...seems to be when it wakes up from sleep (I have deep sleep disabled).  Mine basically does the same thing Dogii's does..raise the brightness it stops and then you can lower it.

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RE: S2716DG buzzing?

My S2716DG rev.A03 does not emit any buzzing sound at all, so if anybody is having problem with this, it is definitely a defect. Or would you rather say that my monitor has a defect, when it does not buzz? But then again, I do not see "incl. warm buzzing sound" in the list of the features for this monitor, so I guess my unit is correct in this regard.

Changing brightness via graphics card software is really not an option, because it would consume unnecessarily high ammount of power, for starters, not to mention that backlight lighting would be pretty visible in dark scenes too. The default brightness settings on this monitor produces luminance somewhere between 250-300cd/m2. And not being able to use HW brightness setting would be unheard of even in the nineties.

Michal Pospichal

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