Hi all,
 
Since day one my EVGA 2080 Super Hybrid has had an issue where at random times, my monitor will go black for about a second.  I can't seem to track down the issue, it's just the DP, HDMI works just fine all day everyday.  Here's what troubleshooting I've done so far:
 - Tried a 2070 Super Hybrid, same issue almost immediately as well
 - Tried a different DP cable
 - Tried a different monitor
 - Tried a Corsair 750w 80+ Platinum p/s instead of my EVGA 750w 80+ gold p/s
 - The same DP cable and monitor work just fine using the onbaord DP on my motherboard, all day everyday
 - Tried the latest EVGA drivers
 - Turned off fast startup
 - Tried just microsoft drivers after using DDU to remove all the drivers
 - Tried a different PCI-E slot on my motherboard
 - Underclocked my VC about 10% (is around 40 degrees idle)
 - It doesn't matter what I'm running if anything, it's just random(?)
 - Zero BSODs with my PC it's about 3 months old
 - Not daisy chaining the power to the VC
 - Tried every DP on the VC
 - My +12v is rock solid at 12.172 (EVGA p/s) and 12.076 (Corsair p/s)
 - Updated MoBo firmware
 - Tried a different refresh rate, 59Hz, 144Hz and when I select 60Hz windows just flips it back to 59Hz.  Odd.
 - Disconnected my TV (using HDMI cable currently)
 - Changed the Nvidia control panel 3D settings > power mgt. mode to prefer maximum performance
 - No issues with the display coming back on after locking my computer for a few hours, it's set to never hibernate
 - The latest thing I tried just now was to turn off G-Sync...I am not holding out hope.
 
Some Specs:
 - Nothing is overclocked
 - Win 10 Pro x64
 - 32GB of Corsair Dominator DDR4 RAM running at spec
 - i5-9600K Corsair water-cooled unit
 - ASUS ROG Strix Z390-E Gaming LGA 1151 MoBo
 
Is there something else I can try outside of another motherboard?  I'd 'prefer' to not completely tear this apart and re-apply paste etc because my onboard DP works just fine as does the HDMI.  I want to say it's a driver issue, but I went down that road first.
 
I've googled this and so far I haven't had any success.  Any suggestions?  And thanks in advance!
 
 
Jerome

That's not a bad idea Steve, I'll try that next, thanks!  Turning off G-Sync didn't make a difference.
 
No firmware available at the dell website for my 27" gaming monitor, o well.
 
 
Jerome

turn on/ or off hardware acceleration for the browser
turn on/ or off hardware acceleration for windows also .
 
Google search for the procedures.

Hi. Did you find a source for your problem?
Recently I noticed similar issue with my new BenQ 4K monitor and 2080Ti XC Gaming.
I have two monitors connected to my GPU. BenQ 4K 32" connected via HDMI and Asus 34" connected via DP.
Randomly it going black for one two seconds (only BenQ). It happens very randomly during gaming.
 

I also read that it can be a temporary restart of the Nvidia driver in Windows due to quick dropout/ crashes internally .... which is not a fix or help - just a FYI

 
and here's this too .. https://forums.evga.com/C...ng-Guide-m3046627.aspx

One of the steps was to disable startup items, I did that and it was okay for a while (admittedly, not long enough).  I then re-enabled my 6 startup items, the black flicker happened again.  The only screen related startup item is Steam.  So I turned that off and I'll wait a longer time this time.  I do have Steam configured to use that Big Box or whatever the blue screen version is and to have it flip my primary monitor as I only game via my TV and HDMI (never a problem via HDMI).  So we'll see, it makes sense that it could be Steam.  But I still am leaning toward a driver issue as I've ruled out any hardware issues at this point.  I did boot into safe mode for a few hours without a black flicker.
 
EDIT: A minute later, it went black without Steam running.  Boo.....
 
 
Jerome

I tried all the applicable steps in that guide, no difference.  I did just adjust the tv settings slightly by enabling the Gaming mode, we'll see.  It's off 99% of the time.  When I did boot into safe mode, I didn't seem to have a problem, so this is a driver issue I think.  I've just gone ahead and connected my 'work monitors' do the onboard DP and HDMI ports and have my TV on the HDMI port of the VC for my racing games.  Bummer this isn't fixable, I'll just grab a Radeon card when they come out and are in stock (LOL).  This is my third time trying Nvidia, again failing miserably and I wager I won't have a problem with the AMD card.
 
 
Jerome

Yep, I'm a sys admin and been doing IT things since the '98 days, I've seen a lot and I've done enough testing/swapping/troubleshooting the past 4 months to know it's an issue with the card.  I also had the same problem with a 2070 Super I bought to test and promptly returned.  DP be damned, why not just give us HDMI ports?
 
 
Jerome

I always thought that the brief screen going black was a G-Sync thing.