144Hz or 165Hz Monitor Stuck at 60Hz? Check These Settings
Find out why a high-refresh monitor only offers 60Hz. Check Windows or Mac settings, the exact input, cables, and dock limits before buying replacements.
Editorial evidence review
Recommendations are checked against product documentation, availability, comparative evidence, and clearly disclosed hands-on work where it exists.
On this page
- Start by separating three different problems
- 1. Check the selected display and refresh rate
- 2. Read the input table, not just the headline specification
- 3. Remove the dock or KVM for one test
- 4. Test one display before blaming mixed refresh rates
- 5. Separate a missing mode from an unstable mode
- 6. If the display mode is correct, check the game
- Buying checklist: what is worth replacing?
If your 144Hz or 165Hz monitor only runs at 60Hz, first select the correct display in your operating system and check its available refresh rates. If the faster mode is missing, test a direct connection and check the monitor's supported modes for that exact input. The number on the box is not a promise that every port, cable, dock and computer can deliver it.
This guide is for a monitor that shows a stable picture but does not offer the expected refresh rate. If the display has no picture at all, use our KVM black-screen checks or USB-C monitor connection guide first.
The advice is based on operating-system and manufacturer documentation, with a practical isolation sequence. We have not performed hands-on compatibility or latency testing for this article. Your monitor's exact model and input table take priority over general HDMI or DisplayPort advice.
Start by separating three different problems
A monitor can support 165Hz, receive a 60Hz signal and show a game rendering at a third number. Write down which number you are looking at before changing anything.
| What you see | First check | What it does not prove |
|---|---|---|
| Windows or macOS offers only 60Hz | Selected display, resolution, input and connection path | That the panel itself is limited to 60Hz |
| The operating system selects 144Hz, but the game reports 60fps | Game frame cap, display mode and graphics workload | That you need another video cable |
| Higher refresh works directly but disappears through a dock or KVM | That device's supported modes and host requirements | That replacing the monitor will help |
| A high rate appears only at a lower resolution | Whether that trade-off is documented | That the faster rate works at native resolution |
Our recommendation is to establish one known-working configuration, then add complexity. Do not change resolution, HDR, cables and drivers together: a successful result will tell you little about which change mattered.
1. Check the selected display and refresh rate
Windows 11
Open Settings → System → Display → Advanced display, select the external monitor, then inspect Choose a refresh rate. Microsoft notes that rates marked with an asterisk require a resolution change. Check both values after applying a setting; a higher refresh rate at an unwanted resolution is not the result you were trying to achieve. See Microsoft's refresh-rate instructions.
If Windows shows separate desktop and active-signal information, record both when asking for help. Do not report only the size of the desktop: the receiving monitor's information menu is also useful evidence of the incoming mode.
macOS
Open System Settings → Displays, select the external display and inspect its refresh-rate options. Apple also points out that some third-party display settings live in the monitor's own menus. Follow its external-display setup guidance, then consult the monitor manual for input-specific controls.
Take a screenshot of the available rates. This is more useful for support than saying the screen “feels slow.” If 144Hz is already selected, move to the game checks below instead of buying a cable immediately.
2. Read the input table, not just the headline specification
Find the manual for the exact model, including any suffix. Look for a supported-timings table and separate limits for HDMI and DisplayPort. Check whether the advertised maximum requires a named overclock setting.
For a concrete example, the ASUS PG278QR manual reserves its 165Hz maximum-refresh setting for DisplayPort input. This is an example of why the manual matters, not a recommendation to buy that older monitor or a rule that HDMI cannot do high refresh.
Make a short compatibility note:
- Target: your chosen resolution and refresh rate.
- Monitor: the input and documented mode that support that target.
- Computer: the output you are actually using.
- Between them: each cable, adapter, dock or switch.
Avoid instructions that say “use DisplayPort” without checking your hardware. Equally, an HDMI logo alone does not settle whether a particular mode works. Ask for confirmation of the complete combination, rather than a blanket assurance that a device supports gaming monitors.
Do not force custom timings or enable an undocumented overclock to recover a missing standard mode. Start with modes the manufacturer supports.
3. Remove the dock or KVM for one test
Use one monitor, connected directly to a compatible video output where possible. Keep the same target resolution and refresh rate. Apple's low-resolution display troubleshooting specifically recommends bypassing a hub or dock and identifies cable, adapter and computer limits as possible causes of lower refresh rates.
If direct connection works, reconnect one intermediate device at a time. Record the first step where the faster mode disappears. That narrows the question from “why is my monitor slow?” to “why does this dock output expose only this mode on this host?”
Check the dock or switch documentation for the simultaneous configuration, not just its best single-display figure. A claim about two 4K screens at 60Hz is not, by itself, evidence for your desired high-refresh combination. If the manual does not specify it, ask the manufacturer before buying.
A direct video cable plus a separate USB connection can be a sensible desk arrangement when the dock still handles your keyboard, network and charging. Use our dual-monitor KVM guide only after establishing which video modes and switching features your setup requires.
4. Test one display before blaming mixed refresh rates
Temporarily use only the target screen, or test an extended desktop instead of mirroring. This is an isolation step, not proof that two screens can never run at different rates.
Intel's multiple-display FAQ describes different refresh rates in both clone and extended configurations. Avoid the blanket claim that connecting any 60Hz screen forces every other monitor to 60Hz.
If the faster option returns with one screen, add the second screen again and record the resulting modes. Include whether the desktop is mirrored or extended in your support request. The useful evidence is the change in available modes on your machine, not an assumption based on the slower panel's label.
5. Separate a missing mode from an unstable mode
If 144Hz never appears, investigate supported modes and detection. Intel's missing-resolution and refresh-rate guidance notes that intermediate components can interfere with the computer reading the monitor's EDID capability information.
If 144Hz appears but causes flicker or a black screen, return to the working setting. Test a known-compatible cable of the required length, using the same ports. A cable swap is useful evidence only when the other variables stay constant.
Record whether HDR or adaptive sync was enabled. If you test with either disabled, change one setting at a time and restore it afterwards. A successful test does not automatically prove insufficient bandwidth; the combination may involve a compatibility or firmware issue that needs model-specific advice.
Install graphics or display updates from the relevant manufacturer when its support guidance applies. Avoid random driver bundles or EDID overrides as the first repair. Keep the direct-connection result so support can distinguish the basic monitor path from the switched or docked path.
6. If the display mode is correct, check the game
A game's frames-per-second counter and the display's selected refresh rate answer different questions. Start with the game's frame limit and any separate refresh-rate setting. Check which monitor the game uses and whether the symptom changes between its supported windowed and full-screen modes.
On supported Windows 11 hardware, Dynamic Refresh Rate can affect some games; Microsoft recommends disabling DRR if a game runs at a lower refresh rate with it enabled. This is a specific check, not a universal reason to disable adaptive sync.
G-SYNC and similar VRR systems address the relationship between frame delivery and display refresh. They are not evidence that an unsupported cable path can carry a higher maximum mode. NVIDIA describes the synchronization function in its G-SYNC documentation.
If the operating system selects the expected mode and only one demanding game runs slowly, investigate that game's settings and performance before replacing the monitor. A new display is not a substitute for identifying a frame cap or workload limit.
Buying checklist: what is worth replacing?
Keep the existing hardware if selecting the correct display, input or documented mode solves the problem. There is no purchase to make.
Replace a cable or adapter when its documented capability is insufficient, or a known-compatible replacement repeatedly fixes the same connection. Buy for the identified mode and length; an expensive cable cannot add a mode the monitor input does not support.
Change the dock or KVM only when you have confirmed a working direct connection and the intermediary cannot provide the configuration you need. Consider keeping the existing dock for non-video devices first.
Consider another monitor when yours genuinely lacks the input/mode combination your computer requires, or when you want a separate improvement such as size or panel characteristics. Our gaming monitor buying guide covers those trade-offs. Skip the upgrade if the only evidence against your current screen is a 60Hz dropdown you have not investigated.
Before spending, give support the monitor and computer models, selected ports, cable identification, target mode, available modes and direct-versus-docked results. Ask one specific question: is this exact configuration supported, and what needs to change if it is not?