Monitor Arm Tension Adjustment: Fix an Arm That Keeps Dropping or Tilting Down

8 min read

A brand-neutral troubleshooting guide for a monitor arm that will not stay up, feels too stiff, or lets the screen tilt down.

Short answer

A monitor arm that drops, sags or will not stay up is usually carrying a display outside its supported weight range, has gas-spring tension set too low, or has a separate tilt joint that needs adjustment. If the arm feels too stiff, its spring tension may be set too high. Support the monitor with one hand while making small adjustments, and always follow the diagram or manual for that exact arm.

These checks are useful for any brand of monitor arm. The location and direction of the adjustment screw vary, so do not assume an Ulti, Omnidesk, Secretlab or generic arm uses the same mechanism.

First, make it safe

1. Check that the desk clamp or grommet mount is tight against a sound, compatible mounting surface.
2. Hold the monitor securely before loosening or tightening any tension adjustment.
3. Do not adjust an arm with a cracked joint, bent mount, damaged gas spring or loose VESA plate.
4. Keep cables slack enough that they do not pull the display down when the arm moves.

Step 1: Check the monitor's actual weight and VESA fit

Use the monitor's weight without its original stand, then compare it with the arm's full published minimum and maximum range. A display can be too light for a powerful gas spring, too heavy for it to hold, or within the headline maximum but poorly balanced because of its depth and curved panel.

Screen size alone does not prove compatibility. This matters especially for ultrawides and Samsung Odyssey G9 models: check the exact model's bare weight, VESA pattern, curve and the arm's stated range before adjusting anything. Our monitor arm selection guide walks through those checks.

Step 2: Tell spring tension from tilt tension

There are commonly two separate adjustments:

• Gas-spring or lift tension controls whether the whole arm rises, stays at height, or slowly sinks.
• Tilt-joint tension controls whether the screen face tips forward or down once it is at the right height.

If the entire monitor gradually sinks, adjust the lift tension. If the arm stays high but the screen points at the desk, adjust the tilt joint instead. Tightening the wrong screw will not solve the problem and can make the arm difficult to move.

Step 3: Adjust an arm that keeps dropping or will not stay up

With the monitor supported, find the adjustment marked with a plus/minus symbol or described as spring, lift or counterbalance tension. Make a small turn toward the plus direction, then test the arm at the height you use. Repeat in small increments until it holds position without needing force.

If it reaches maximum tension and still sinks, stop. The monitor may exceed the arm's rated range, the spring may be worn, or the mechanism may be faulty. Do not add straps, wedges or extra hardware to force the arm into position.

Step 4: Adjust an arm that is too stiff or will not come down

Support the screen, then make a small turn toward the minus direction on the spring-tension adjustment. Test after each adjustment. If the monitor suddenly rises, lower the tension one small increment at a time until it stays where you place it.

An arm that remains stiff even at the lowest approved setting may be carrying a monitor below its minimum rated weight or may have a seized mechanism. Check the published range before assuming it is defective.

Step 5: Fix a monitor that keeps tilting down

If height is stable but the screen face droops, look for a separate tilt-hinge adjustment near the VESA plate. Support the monitor, tighten it in small increments, then test the viewing angle. Do not overtighten a joint to the point where the display cannot be repositioned.

If the tilt joint will not hold even when correctly adjusted and the monitor is within the stated range, stop using the arm until the manufacturer can advise. A loose screen face can damage the monitor or the desk setup.

Other causes worth checking

• Loose clamp or grommet: the whole base shifts rather than the arm joint moving.
• Obstructed movement: a wall, shelf or cable tray prevents the arm from reaching its intended position.
• Cable pull: DisplayPort, HDMI, USB or power cables are too short or routed too tightly.
• Wrong mounting surface: a thin, hollow or obstructed desk edge may not safely support the arm.

For a full desk-fit checklist, read our monitor arm buying guide. If you use a standing desk, also leave a gentle cable loop for the desk's full height range.

When the monitor arm may be faulty

Stop adjusting and seek manufacturer support if you see oil or gas-spring leakage, a cracked joint, a slipping VESA plate, a bent clamp, stripped adjustment hardware, or an arm that cannot hold an in-range monitor at its maximum approved tension. Keep the model number, monitor specifications and a short video of the movement for the support request.

When an Ulti arm is genuinely relevant

If the problem is an out-of-range display or an unsuitable mounting method, use the Ulti monitor arm range and monitor arm finder to narrow the options by display size, weight and desk setup. For a large ultrawide, including a Samsung Odyssey G9 variant, confirm the exact monitor specification before choosing any arm. Replacing an arm will not solve a loose desk edge, incorrect VESA fit or a cable that is pulling the screen down.

FAQs

Which way do I turn a monitor arm tension screw?

Use the plus/minus markings or manual for that arm. On many gas-spring arms, plus increases lift support and minus reduces it, but do not rely on that convention when the mechanism is unmarked.

Why does my monitor arm sag even though the monitor is below the maximum weight?

The arm may be below its minimum supported weight, its spring tension may be too low, the screen may be poorly balanced, the tilt joint may be loose, or the spring could be worn. Check the full rated range and the symptom before adjusting.

Can a monitor arm hold a Samsung Odyssey G9?

It depends on the exact G9 model, not the product family name. Compare its bare weight and VESA pattern with the arm's published range, then confirm the desk mounting surface and clearance. A large curved display may need more capacity and reach than a standard flat monitor.

Should I keep tightening a monitor arm that still drops?

No. Stop at the arm's approved adjustment limit. If an in-range monitor still drops, treat it as a compatibility, worn-spring or mechanical-fault issue and contact the manufacturer.