You cannot change OBS’s Output (Scaled) Resolution through the documented Video settings workflow while an output is active. To lower the resolution, you need to stop the output, change the setting, and restart; plan for an interruption rather than relying on a seamless change.
For the usual goal—sending a lower-resolution picture to YouTube while keeping your scene layout—the setting is Settings > Video > Output (Scaled) Resolution. Leave Base (Canvas) Resolution alone unless you also intend to change the workspace your sources are arranged on.
Check whether an OBS output is active
Before opening Video settings, check the status of every output you are using. For a straightforward YouTube broadcast, look at the streaming controls and confirm whether the stream is live or connecting. If you are also recording or sending another output, account for that too: OBS’s warning refers to outputs being active, not only a YouTube stream.
The Video page gives a direct indication when a setting cannot be changed. OBS’s interface warning reads: “Video output is currently active. Please turn off any outputs to change video settings.” If you see it, do not look for a toggle that will apply the new Video setting in the background. Stop the active output first.
That check matters especially on a 24/7 channel. A stream can be technically live while nobody is watching, but viewers may still be listening or following a scheduled programme. If you have an operator or moderator, tell them that a maintenance stop is planned. If you run the channel alone, choose a time when a brief break is least disruptive and make sure you know how you will confirm the broadcast has returned.
You can also distinguish an active output from an active scene. A scene may remain selected and visible in OBS without being sent anywhere. The relevant question is whether OBS is outputting a stream or recording, not whether the preview contains a picture.
Why OBS locks Video settings during output
OBS treats Video settings as part of the configuration for the output it is currently producing. Its documented warning instructs you to turn off outputs before changing video settings. That is the practical limit to keep in view: the supported workflow does not provide an uninterrupted change to Output (Scaled) Resolution while the output stays active.
This distinction is easy to miss because some broadcast controls can be adjusted during a live session. The fact that one source, audio control, or scene can be changed does not mean the Video tab’s resolution control can be changed in the same way. Do not assume that switching profiles or restarting an encoder in some other way bypasses the Video page restriction.
The official OBS interface text is visible in the OBS Studio source repository. OBS’s Studio overview guide explains the relevant Video settings and the roles of canvas and output resolution. These are useful references if your interface labels differ slightly by version.
This article is about that documented Video setting, not every possible advanced output, plugin, or alternate encoder configuration. The reviewed sources do not establish that another control can safely change the resolution being sent to YouTube without a stop. If you use a more specialised workflow, verify its behaviour with a test channel or a planned test broadcast rather than treating it as a general workaround.
Locate Output (Scaled) Resolution
In OBS, open Settings, then select Video. The page contains Base (Canvas) Resolution and Output (Scaled) Resolution. For a lower-resolution stream, Output (Scaled) Resolution is the control to change.
Choose a target that fits the material and your operating conditions. OBS uses examples such as streaming at 720p from a 1080p source; the right selection depends on how much visual detail your content needs and what your system can encode reliably. A devotional song with a static image may remain clear at a lower output size than a scene with small text or fine detail. Test the actual content rather than relying on the number alone.
A lower output resolution can reduce encoder load, but it also reduces detail in the stream. If the current problem is rendering or encoding strain, resolution is not the only lever. OBS’s encoding performance guidance also identifies lowering frame rate as a way to reduce work. Lowering from 60 fps to 30 fps is an example in the guidance, not a promise that a particular machine or scene will then run well.
| Change | What it affects | Main trade-off |
|---|---|---|
| Lower Output (Scaled) Resolution | The resolution OBS sends to the stream or recording | Less picture detail; can reduce encoder load |
| Lower frame rate | The number of frames sent each second | Less motion smoothness; can reduce rendering and encoding work |
| Lower Base (Canvas) Resolution | The workspace used to arrange sources | Sources may need resizing or repositioning; OBS reserves this for serious resource constraints |
Change one relevant variable at a time during testing. If you lower resolution and frame rate together, you may get a lighter output, but it becomes harder to tell which adjustment solved the problem and which one affected the viewing experience. Keep notes on the original values so you can restore them if the test is worse.
Output resolution and Base (Canvas) Resolution are different
Base (Canvas) Resolution is the composition workspace: the area where you place your image, video, text, and other sources. Output (Scaled) Resolution is the size of the picture OBS sends to the stream or recording after scaling. Think of the canvas as the layout surface and the output as the delivered picture.
For example, if your sources are arranged on a 1920-by-1080 canvas, you can set a smaller output resolution such as 1280-by-720 to stream a scaled-down picture. Your scene layout remains designed for the canvas, while the transmitted image has fewer pixels. The example dimensions describe settings, not a guarantee about visual quality or performance.
Changing the canvas is a different job. OBS notes that changing Base (Canvas) Resolution can require you to realign or resize sources. A logo that fits near a corner, text placed along the bottom, or a video framed to fill the canvas may no longer sit where you expect. By contrast, changing Output (Scaled) Resolution does not itself require the same source-layout adjustment.
For most operators who want to reduce what YouTube receives, keep the canvas at the size that suits your scene and lower Output (Scaled) Resolution. Avoid changing both settings just because they appear together in the Video page. OBS cautions against lowering canvas resolution except when GPU resources are severely constrained, because the layout work can be disruptive.
If you are preparing a new scene from scratch, or your machine is struggling even after adjusting output and frame rate, canvas size may deserve a separate review. Treat it as a layout change: duplicate or document the scene, inspect each source after the change, and test before using it for the main channel.
Plan a stop, change, and restart
A controlled resolution change has three stages: prepare, apply, and verify. Preparing in advance reduces the time spent with the channel off air, but it does not remove the interruption required by the documented workflow.
Before the maintenance window, write down the current Video settings and the lower target. Check that the scenes still make sense at that target, especially small titles, lyrics, news tickers, and logos. If you keep separate OBS configurations for different formats, you can create an OBS Profile ahead of time; profiles save Stream, Video, and Output settings, but not Scenes. Switching to a profile does not remove the active-output restriction. OBS explains profile contents in its Profiles guide.
Test the target configuration before changing the production stream if you can. Use representative content: a quiet image is not a good test for a channel whose usual scene contains scrolling text, motion, or music. Check that the desired output size appears in the settings and that text and important visual elements remain legible. If the test shows a problem, revise the target before the live maintenance window.
At the planned time, tell viewers or moderators about the expected gap if that is appropriate for your channel. Stop the OBS output. Confirm it is no longer active, open Settings > Video, set Output (Scaled) Resolution, and apply the change. Then start the stream again with the intended scene and audio. Avoid changing several unrelated settings during the same stop; a narrow change is easier to verify and reverse.
After restarting, inspect OBS for output status and review YouTube’s stream-health messages. Confirm that audio is present, the intended scene is being sent, and the picture looks acceptable on a viewer device. YouTube recommends testing before going live and monitoring stream health during the event in its live encoder settings guidance. If the new output is unstable or visibly poor, stop and return to the last known configuration rather than leaving a damaged broadcast running.
Set expectations for a 24/7 broadcast
A planned restart is still a break in the source feed. YouTube automatically creates different output formats from an incoming live stream so viewers can choose playback quality, but that viewer-side transcoding does not keep OBS connected while you stop and restart its output. YouTube describes its transcoding in the encoder guidance, and OBS discusses it in its transcoding guide. Neither should be read as a way to make an OBS Video setting change seamless.
The sources reviewed do not promise that stopping and restarting the encoder preserves the same YouTube live event or each viewer’s session. Depending on the setup and how YouTube handles the restart, viewers may need to reconnect, and the channel’s live page may not behave exactly as it did before the stop. Do not promise viewers that nothing will change. If the current broadcast is tied to a scheduled event or a programme where continuity matters, check the live control room and plan the transition before touching OBS.
For an always-on channel, the maintenance plan should include the people and content around the technical change. A prayer group might announce a short pause before the service begins; a local news loop might schedule the change between updates; a lofi station could post a note explaining that playback may briefly reconnect. These steps cannot preserve the stream connection, but they set clear expectations and help viewers understand what happened.
If the reason for lowering resolution is resource pressure, investigate the symptom before choosing the adjustment. A render or encoder overload can respond differently to reduced resolution or reduced frame rate, and the result depends on your scenes, content, and system. Test changes separately and watch the health indicators during representative material. OBS recommends testing settings rather than assuming a configuration will suit every stream.
For a channel whose real requirement is to keep a video running while your personal computer is off, changing OBS resolution is only one part of the operating decision. The guide to running a continuous YouTube stream from a home PC in India covers the practical limits of relying on a home computer. If you are deciding whether a playlist needs to keep running without your PC, see how to set up a YouTube playlist stream without a PC in India.
Keep a repeatable configuration for future changes
Once the new setting has been tested, record it alongside the conditions under which you tested it: the scene, frame rate, output size, and any visible issues. This is more useful than a note that simply says “lower resolution worked”, because another scene with scrolling captions or more movement may behave differently. Include the old setting as a rollback option.
If you use OBS Profiles, name them by purpose rather than by a vague label. A profile for a lower-bandwidth broadcast is easier to recognise than “Profile 2”, but remember that profiles save settings and do not include scene collections. Check which profile is active before an important restart, and verify the actual Video page after switching. A saved configuration is a convenience, not a substitute for checking what is being sent.
Keep a short maintenance record after the change: when the output was stopped, whether it restarted as intended, and what YouTube’s health messages showed. This can help you distinguish a resolution issue from a separate network or audio problem if the stream drops later. It also gives another operator enough context to repeat or reverse the change without guessing.
If the channel uses a repeating video programme, resolution is only one operational consideration. For a continuous loop, the guide to replaying a YouTube gaming livestream continuously discusses the replay side of an always-on stream. For a radio-style channel, the Kannada radio 24/7 streaming guide offers a related operational example. These are separate workflows; neither changes the OBS rule that active outputs must be stopped before changing Video settings.
If a lower output resolution does not address the actual issue, do not keep reducing settings by habit. Revisit frame rate, encoder load, connection stability, and scene complexity one at a time. A picture that is smaller but still drops frames or disconnects has not solved the viewer’s problem.
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FAQ
Can I change Output (Scaled) Resolution while OBS is live?
Not through OBS’s documented Video settings workflow. OBS says to turn off all outputs before changing video settings, so stop the output, make the change, and restart. Plan for a break rather than promising viewers an uninterrupted stream.
Which OBS setting lowers the resolution sent to YouTube?
Use Settings > Video > Output (Scaled) Resolution. That controls the stream or recording output after scaling. Base (Canvas) Resolution is the workspace for arranging sources, not the resolution sent to YouTube.
Will YouTube transcoding prevent a gap when I restart OBS?
No. YouTube’s transcoding gives viewers different playback formats from the incoming live feed; it does not keep OBS connected while its output is stopped. The reviewed guidance does not guarantee that the same live event or viewer session will continue unchanged after a restart.
Should I lower Base (Canvas) Resolution as well?
Usually not if your aim is only to send a smaller stream. Changing the canvas can require source resizing or repositioning, while lowering Output (Scaled) Resolution changes the delivered picture size. Consider canvas changes separately and test the layout before using them on your main broadcast.