Strange G-sync Pixel Problem

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One of my Dell S2716DG monitors has developed what appears to be a couple of adjacent bright red pixels, however I've tracked this down to only being an issue when running in full-screen g sync mode. The problem is 100% repeatable and disappears as soon as g sync is disabled. Reducing the refresh rate also makes no difference.

I've tried a different display port cable and swapping the GPUs and monitors between two computers and the result is always the same on that particular screen. Therefore quite confident that the g-sync scaler in the monitor has developed a small fault, but thought it worth seeing if anyone else has come across a similar issue. I've found one similar report via google, but this was on delivery and was replaced under RMA. This is a new fault in my case as the issue has only just started. Unfortunately the monitor is ~6 months out of warranty.

Any advice gratefully received, but I think the options are live with it, disable g-sync, or replace the screen.
 
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This is possibly a more complex issue - the combination of adaptive overdrive (which is screwing with the voltage used to drive pixels) with G-Sync and the technology used in the panel used in the monitor (which is TN like but a variation of TN) seems to push the panel quite hard exposing those marginal for quality - the Dells can get some oddities due to it I think including an odd ghosting like effect if you display static content too long but for some reason happens less on the Asus versions - possibly because they tend to die before it happens.
 
This is possibly a more complex issue - the combination of adaptive overdrive (which is screwing with the voltage used to drive pixels) with G-Sync and the technology used in the panel used in the monitor (which is TN like but a variation of TN) seems to push the panel quite hard exposing those marginal for quality - the Dells can get some oddities due to it I think including an odd ghosting like effect if you display static content too long but for some reason happens less on the Asus versions - possibly because they tend to die before it happens.

Ouch.. burn! :D
 
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