Start with the setup you actually intend to use: your computer, connection and normal viewing position. This checklist brings separate checks into one record. A clear color field, a steady browser result and a pleasant moving image each answer a different question.
1. Record the setup before changing it
Note the monitor model, connected input, computer and any dock or adapter. Read the model’s setup guide for supported resolution and refresh combinations. Check the specified modes for the computer output, cable, dock and monitor input.
In Windows, select the correct monitor under Settings → System → Display → Advanced display. Check its active resolution and refresh rate. Microsoft’s instructions explain why some refresh choices also change resolution. On another system, use its display settings and the maker’s documentation.
2. Inspect the still image
Open screen inspection. At a comfortable brightness, view black, white and the three primary colors, then the gray fields and gradients. Hide the controls before checking a suspected spot. Note which pattern shows it and whether it stays at the same screen location.
Check surface dust and reflections before labeling a mark. Compare larger light or tinted areas from your usual position and lighting. Use the guided outcomes and optional notes to record what you actually checked, then download the inspection report. For a bright edge, compare IPS glow and backlight bleed; for a recognizable outline, check image retention and burn-in.
3. Sample browser timing
Keep the window entirely on this display. Run the browser FPS test with drawing load off and the tab visible. Keep the completed result, then repeat an unexpected reading under the same conditions. Compare the graph and intervals as well as the average.
A result near 60 FPS on a selected 144 Hz setup calls for the display and browser checklist. Keep the browser sample and the active display mode together as you work through the checks.
4. Compare motion and everyday use
Use the same-speed motion comparison to look for a dark smear or bright outline. If your monitor offers overdrive or response settings, record the starting option and compare one change at a time at the same page speed and display mode. Consult the model’s manual and keep the setting that gives the clearest motion in your conditions.
Also try the applications or games that matter to you. Games add their own frame delivery, rendering and variable-refresh conditions to compare. Use the game-artifact guide if a trail appears mainly in one game.
On a touch-enabled display, also run the touchscreen check. Trace coverage, recheck gaps and compare simultaneous contacts before trying the gestures you normally use.
5. Keep a record someone else can follow
Use this template with your inspection report, timing export or motion notes. Leave anything you do not know as unknown. Keep serial numbers and purchase documents for the support channel rather than a public post.
| Record | What to include |
|---|---|
| Display and date | Model, date observed and the application or test in use. |
| Connection | Computer output, cable, any dock or adapter, and monitor input. |
| Settings | Active resolution and refresh rate, brightness, picture mode, HDR and any changed response setting. |
| Viewing conditions | Room lighting, usual viewing position and any change in angle. |
| Repeatable observation | Pattern or content, approximate screen location, steps to reproduce and whether it appears in ordinary use. |
| Comparison and files | What changed after one setting change, report filename, original photos and whether a screenshot shows the same issue on another display. |
Use a screenshot viewed on another display to check the supplied image. Use a photograph to show the physical screen’s appearance. Keep photo position, lighting and camera exposure consistent; automatic exposure can exaggerate a faint patch. Follow any specific evidence instructions from the seller or manufacturer.
6. Check the right next step for your purchase
Find the seller’s return process and the manufacturer’s model-specific support policy while you still have the purchase details to hand. Check the applicable deadlines directly. Describe the repeatable issue and ask whether they need their built-in diagnostic, particular photos or the original packaging before you send anything.
The seller or manufacturer assesses your evidence under the policy for your product and purchase. Keep the reply or case number with your records. If support asks for another comparison, change one condition, repeat it and label the new files clearly.
Comparing two sizes or resolutions? Use the PPI and dimensions calculator with each monitor’s specified viewable diagonal.
