Hi all,

How to achieve higher refresh rate on display/monitor ?

At end September 2020, I paid about USD1,000 purchasing a brand-new Dell UltraSharp 32(31.5") 4K display, model U3219Q. It is NOT a discount display. Immediately after its purchase I found its screen flickering NOW and THEN. Then I contacted Dell local office and Dell US headquarter is also aware this case.

Upon my complaint Dell replaced the defective display with a refurbished display, same model. To this arrangement I hold a strong objection. Dell US office replied me that all replacement after 30 days of purchase will be refurbished, requesting me to submit copy of the purchase invoice for verification. Then I did, emailing them copy of the relevant purchase invoice for verification. Up to now, more than 2(TWO) months, Dell US office as well local office never return me a reply on my complaint.

The worst of all is the replacement display still flickering NOW and THEN. Then I complained to Dell US office again and they sent me another replacement display, same model. But the 2nd replacement display is still flickering NOW & THEN on following settings;

Resolution 3840x2160
Refresh Rate 60Hz

Resolution 3840x2160
Refresh Rate 59.94Hz

Resolution 3840x2160
Refresh Rate 50Hz

The replacement display only works on;
Resolution 3840x2160
Refresh Rate 30Hz

Not;
Maximum Preset Resolution:
3840 x 2160 at 60 Hz

as listed on the specification by Dell on Internet;
Dell UltraSharp 32 4K USB-C Monitor: U3219Q
https://www.dell.com/si/business/p/d...19q-monitor/pd

Today the desktop monitor/display standard is at 60Hz refresh rate.

The refresh rate is the number of times the monitor updates with new images each second. .... The higher the refresh rate, the smoother the delivered visuals.

In a brief search on Internet I found following threads complaining the problem of flickering NOW & THEN on this model U3219Q;

U3219Q, PWM, not flicker free
https://www.dell.com/community/Monit...e/td-p/7198589

Dell U3219Q 32" monitor - flickering/intermittently loosing USB-C/TB3 signal
https://discussions.apple.com/thread/251232537

Dell U3219Q flicker free?
https://www.reddit.com/r/Monitors/co.../?ref=readnext
RTINGS tested it and said this one is not flicker free......

U3219Q, PWM, not flicker free, #3
https://www.dell.com/community/Monit...3/td-p/7687392

Dell U3219Q Monitor Review
https://www.rtings.com/monitor/reviews/dell/u3219q
Cons
====
Poor dark scene perfomance
Not flicker-free

In this case I, being a victim, have been struggling for more than 2 months. Now I have to searching around on Internet in anticipation to find a solution on Refresh Rate. Any folk on the forum knows how to fix the Refresh Rate problem please shed me some light.

Thanks in advance.

Regards