Start by proving that frames are actually being skipped
Do not change drivers, cables, and monitor settings based on one uneven photo. Camera exposure, rolling shutter, browser timing, variable refresh rate, and background load can all create gaps that resemble frame skipping.
Run the frame skipping test, keep the tab focused, and take several photos using the same pattern. A suspected problem becomes more credible when the same missing marker or doubled gap appears repeatedly. If the pattern changes completely in every photo, improve the capture before troubleshooting the display.
Change one variable, repeat the same test, and record the result. Changing several settings together may hide the cause even when the final photo looks better.
1. Return the monitor to a supported refresh rate
A custom or overclocked refresh rate is the first setting to undo. Some monitors accept a higher timing signal while failing to show every expected frame consistently. Select a refresh rate listed as supported for the monitor's current resolution, then repeat the same camera capture.
If the standard mode produces even spacing and the overclocked mode repeatedly skips, the overclock is the practical cause. Keep the stable mode instead of compensating with unrelated settings.
2. Verify the resolution and refresh rate in the operating system
Confirm that the correct display is selected and that the active refresh rate matches the mode you intend to test. Multi-monitor systems can make this easy to overlook. Also confirm that the resolution has not changed to a mode with different refresh-rate limits.
Use the browser refresh rate test as a supporting signal. Browser timing cannot certify monitor hardware, but it can reveal that the active browser is not receiving frame intervals close to the selected display mode.
3. Simplify the cable and connection path
Connect the monitor directly to the computer where possible. Temporarily remove docks, capture devices, KVM switches, converters, and adapters. Try another monitor input and a cable intended for the required resolution and refresh rate.
Keep the display mode unchanged during this comparison. If a direct connection is clean while the adapter path is not, the result identifies the connection chain rather than the display panel. Avoid buying a replacement cable solely because one camera photo looked uneven; require repeated evidence first.
4. Compare variable refresh rate on and off
G-SYNC, FreeSync, Adaptive-Sync, and other VRR modes change when a display presents frames. That timing can complicate a camera test, especially when the browser workload is not perfectly stable. Compare repeated captures with VRR enabled and disabled without changing the refresh rate, resolution, speed, or marker density.
A difference does not automatically mean VRR is defective. It may mean the test is easier to interpret in fixed-refresh mode. Restore the setting that gives the best behavior in normal games after the diagnostic comparison is complete.
5. Remove browser and power-saving interference
Keep the test tab visible and focused. Close heavy background tabs, downloads, video encoders, virtual machines, or other workloads that create repeated frame-time spikes. Connect a laptop to power and disable battery-saving modes for the comparison.
Run the FPS test to inspect browser frame time and stability. If the browser itself is pausing, the moving marker pattern can become uneven without proving that the monitor skipped a hardware refresh.
6. Check the graphics driver without stacking changes
If the issue began after a graphics driver change, compare with a known stable driver provided for the GPU or computer. Otherwise, install an appropriate current driver using the vendor's normal process and restart before retesting. Do not combine the driver change with a new cable, new refresh rate, and monitor reset in the same trial.
Also remove experimental custom resolutions or timings during the test. The goal is a supported baseline, not the maximum refresh number the display will accept.
7. Test another input, monitor, or computer
Cross-testing is the strongest isolation step available without lab equipment. Test the same monitor on another compatible output, or test another monitor on the original computer. Use supported modes and repeat the same capture method.
| Result | Most useful interpretation |
|---|---|
| Issue follows one monitor | Investigate that monitor's mode, input, firmware options, or hardware. |
| Issue follows one cable or adapter | Replace or bypass that part of the connection chain. |
| Issue follows one computer or GPU output | Investigate its driver, output configuration, and workload. |
| Issue appears only in one browser | Treat browser scheduling or configuration as a likely test factor. |
| Issue disappears in repeated clean captures | The original result was likely a camera or timing artifact. |
8. Reset monitor settings only after recording the baseline
A monitor reset can remove an accidental timing, gaming, or power configuration, but it also erases the evidence of which option was responsible. Photograph or record the current settings first. Reset only when simpler comparisons have not isolated the issue, then restore the supported resolution and refresh rate before retesting.
When the problem is likely hardware-related
Hardware becomes more plausible when the same missing-gap pattern follows one monitor across repeated photos, supported refresh modes, direct cables, multiple inputs, different browsers, and another computer. Preserve the photos, monitor model, resolution, refresh rate, cable type, and test conditions before contacting support.
If the monitor is under warranty, follow the manufacturer's diagnostic and return process. This browser test is practical evidence, not a certified measurement or warranty decision.
Retest after every change
- Confirm that the result repeats: Repeat the camera-assisted frame skipping test and rule out camera shutter artifacts before changing display settings.
- Return to a standard refresh rate: Disable any monitor overclock or custom timing and test at a refresh rate officially supported by the display.
- Verify the active display mode: Confirm the intended resolution and refresh rate in the operating system and make sure the correct monitor is selected.
- Simplify the connection: Connect the monitor directly when possible, remove docks or adapters temporarily, and test a supported cable and input.
- Compare VRR settings: Run controlled tests with variable refresh rate enabled and disabled to see whether the pattern follows that setting.
- Check software and power conditions: Keep the browser focused, close heavy background work, disable power-saving modes, and update the graphics driver when appropriate.
- Retest one change at a time: Repeat the same capture after every change and keep the first configuration that produces consistent spacing across multiple photos.
Use the same speed, density, contrast, direction, and camera setup after each change so the captures remain comparable.
Frame skipping troubleshooting questions
Can a cable cause monitor frame skipping?
A cable, adapter, dock, or display input can contribute when the selected resolution and refresh mode are not carried reliably. Test a direct connection and a cable rated for the intended mode before blaming the monitor.
Can an overclocked refresh rate cause skipped frames?
Yes. A monitor may accept a custom refresh rate without presenting every expected frame consistently. Return to an officially supported refresh mode and repeat the same camera-assisted test.
Should I disable G-SYNC, FreeSync, or another VRR mode?
Do not assume VRR is the cause. Compare repeated captures with VRR enabled and disabled while keeping the resolution, refresh rate, browser, and test pattern unchanged.
Does one uneven photo prove frame skipping?
No. Camera exposure, rolling shutter, browser timing, and system load can create uneven gaps. Look for the same missing-gap pattern across multiple clean captures.
When should I contact the monitor manufacturer?
Contact support when repeated skipping follows the monitor across supported refresh modes, cables, inputs, browsers, and ideally another computer. Keep photos and configuration details as evidence.
Understand the symptom before troubleshooting
If you are not sure whether the capture shows skipping, tearing, stutter, low FPS, or ghosting, read what frame skipping is before changing display settings.