A dual monitor desk works best when one screen holds the game and the other holds OBS, chat, and controls, but default settings often capture the wrong screen. The best setting for obs with dual monitors starts with a clear canvas, the right capture source, and a bitrate that fits your connection. This guide walks through each step in order.
Quick answer: the best setting for obs with dual monitors
Use one monitor for the game and the other for OBS, set the canvas to the resolution you want viewers to see, and capture the game with game capture instead of display capture. Keep chat, alerts, and the OBS controls on the second screen, where they stay out of the stream. That split gives you a clean picture and full control at the same time.
Why one monitor plays and the other controls
The split works because each screen has one job, so the game stays full screen while OBS, chat, and alerts stay visible on the second screen. You can read messages, watch the audio meters, and switch scenes without alt tabbing away from the game or covering it with windows.
When both jobs share one screen, every glance at chat means leaving the game, and every OBS window sits on top of the picture you want viewers to see. A second monitor removes that conflict. The game keeps the full main screen, and the control screen holds everything else in a fixed place, so your hands and eyes learn where each tool lives. That layout also makes mistakes easier to catch, because the OBS preview, the audio meters, and the stream status stay in view the whole time.
Set hotkeys for scene switches in OBS settings, so you can change scenes without moving the mouse away from the game. A simple pair of keys, one for the game scene and one for the break scene, covers most streams. Practice the switch once before going live, and watch the preview on the second monitor to confirm the right scene appears. Hotkeys turn the second monitor from a passive display into a control panel you can use without looking away from the game for long.
Why the best setting for obs with dual monitors starts with the canvas
The canvas sets the size of the picture OBS builds, and every source, scene, and output setting follows from it. If the canvas matches the game resolution and the output you plan to stream, the picture stays sharp and the layout stays simple. If the canvas is wrong, sources need constant resizing and the stream can look soft or cropped.
Start by deciding what viewers should see. Most streams use a 1920 by 1080 canvas, because it matches a common monitor size and a common stream size, and it keeps text readable. A 1280 by 720 canvas suits slower connections and lighter hardware, because it needs less data for a clear picture. Pick one canvas size, use it for every scene, and set the output resolution to match it or scale down from it. Changing the canvas later forces a rebuild of every scene layout, so lock it in before you place sources.
Set up your two monitors before opening OBS
Arrange the monitors in Windows first, so OBS sees the same layout you see on the desk. Set the game monitor as the main display, place the second monitor on the correct side, and confirm that the mouse moves between screens in the expected direction. A tidy Windows layout prevents most capture mistakes later.
Decide which monitor holds the game
Put the game on the larger, faster, or sharper monitor, and put OBS and chat on the other one. The game deserves the better screen, because it is the picture viewers see and the picture you react to. The control screen only needs to show text and meters clearly.
Follow these steps to choose and confirm the layout:
- Place the better monitor directly in front of you, at eye level and about an arm’s length away.
- Place the second monitor to the side, angled slightly toward you, so a glance reads chat without turning your head.
- Open the game on the main monitor and check that it runs full screen without windows overlapping it.
- Open OBS on the second monitor and check that the preview, the controls, and the audio meters all fit on that screen.
If the two monitors differ in size or resolution, the game monitor still takes priority. A smaller second monitor works fine for chat and controls, because text and meters stay readable at a modest size. The reverse layout wastes the better screen on windows that do not need it.
Set the main display and arrangement in Windows
Open Windows display settings, identify each monitor by number, and drag the screen icons until their order matches the desk. Set the game monitor as the main display, so new windows and the taskbar behave as you expect, and turn off any mirroring so each screen shows its own picture.
The arrangement matters because OBS lists monitors by the same numbers Windows uses. When the icons in Windows match the physical desk, the number OBS shows for a monitor matches the screen you mean. If the order is reversed, the mouse crosses to the wrong side, and a display capture aimed at monitor two can grab monitor one instead. After arranging the screens, set each monitor to its native resolution in the same settings window, and confirm the refresh rate matches what the monitor supports. Then open OBS and check that the monitor numbers in the capture source match the layout you just set.
Choose canvas and output resolution
Canvas and output resolution decide how sharp the stream looks and how much work the encoder does. Set the canvas first, then choose an output resolution that fits your upload speed and your audience. A clear plan here keeps the picture sharp without overloading the connection.
Pick a base canvas that matches your content
Set the base canvas to the resolution of the picture you want to build, usually 1920 by 1080 for a modern game stream. The canvas should match the game monitor when possible, because a matching canvas avoids scaling the game picture up or down inside OBS. A smaller canvas suits talk streams and simple content.
Open Settings, choose Video, and set Base Canvas Resolution before you add sources. If the game runs at a different resolution from the canvas, OBS scales the picture to fit, and that scaling can soften text and edges. To avoid that, set the game to the same resolution as the canvas when the hardware allows it. If the game must run at a higher resolution, a canvas one step below it still works, because downscaling from a larger game picture usually looks cleaner than upscaling from a smaller one. Keep the canvas the same across every scene, so switching scenes never changes the picture size.
Set the output resolution and frame rate
Set the output resolution in the same panel, and choose a frame rate that fits the content and the hardware. For most game streams, an output of 1920 by 1080 at 60 frames per second gives smooth motion and readable text. For slower connections or lighter hardware, 1280 by 720 at 60 frames per second gives a steadier stream.
The output resolution can match the canvas or scale down from it, and OBS handles that scaling in the Video settings. A lower output resolution needs less bitrate for the same quality, so it suits limited upload speed. The frame rate choice matters most for fast motion: fast games look better at 60 frames per second, while talk streams, card games, and slow strategy games look fine at 30 frames per second. Set the frame rate to a common value such as 30 or 60, and avoid unusual values that can confuse the platform or the player. After choosing, run a short test stream or recording and watch the result for stutter, blur, or dropped frames, then adjust one setting at a time.
Set up scenes and sources across two screens
Scenes hold the layout for each part of the stream, and sources fill each scene with the game, the camera, and the overlays. Build one scene for gameplay, one for breaks, and one for starting soon, and keep the layout consistent across them. A small set of tidy scenes beats a large set of half finished ones.
Build a game scene for the main monitor
A game scene should show the game full screen, with a camera and a few overlays placed where they never cover important game information. Add a game capture source first, then add the camera, then add alerts and text in the corners. Keep the layout simple, because a busy scene distracts viewers from the game.
Start with an empty scene named for its purpose, such as Game, and add the game capture source before anything else. Size the game source to fill the canvas, and check that it covers the full frame without black bars. Then add a camera source in a corner that stays clear of health bars, maps, and menus, and size it small enough that the game stays the focus. Add text or alert sources last, and place them where they stay visible without blocking play. Preview the scene on the second monitor while the game runs on the first, and adjust the placement until the layout looks clean at a glance.
Build a control scene for the second monitor
A break or starting soon scene gives viewers something to watch while you step away, and it gives you a safe scene to switch to when the game needs attention. Use a simple background, a clear message, and the same camera position as the game scene, so the switch feels smooth instead of jarring.
Create a second scene with a plain background and a short message such as Be Right Back, and add the camera source in the same corner used in the game scene. Keep the text large and easy to read, because viewers may watch on a small screen. Add chat or recent event overlays only if they fit without crowding the layout, and leave plenty of empty space around them. Switch to this scene before you leave the desk, and switch back to the game scene when you return, so the stream never shows an empty chair or a bare desktop by accident.
A starting soon scene works the same way and suits the first minutes of a stream, when viewers arrive before the game starts. Use the same background style and the same camera position, and add a short line that names the game or the plan for the session. Keep this scene on screen for only a few minutes, then switch to the game scene once the game is ready, so new viewers meet the content quickly instead of waiting on a static screen.
Use display capture and game capture correctly
Game capture records one game directly, while display capture records everything on a monitor, including windows that open over the game. Use game capture for the game itself, because it stays locked to the game even when other windows open. Use display capture only for a desktop tour or a program that game capture cannot see.
To add game capture, create a game capture source, set it to capture a specific window, and choose the game from the list while it is running. If the game is not running yet, the source shows nothing until the game starts, which is normal. To add display capture, create a display capture source and choose the monitor number that matches the screen you want to show, and double check the number against the Windows layout. Never point display capture at the monitor that holds OBS, because the preview then captures itself and creates a repeating mirror effect. When a source shows the wrong screen, open its properties, check the monitor or window it points to, and fix that one setting before changing anything else.
Set audio, encoder, and bitrate
Audio, encoder, and bitrate settings decide whether the stream sounds clear and stays stable. Set the audio routing first, then pick an encoder that fits the hardware, then set a bitrate that fits the platform limit and the upload speed. Each choice affects the others, so adjust them in that order.
Route game audio and microphone audio separately
Give the game audio and the microphone their own tracks in OBS, so each one has its own volume meter and its own level. Set the desktop audio device to the output the game uses, and set the microphone to the microphone you actually speak into. Then balance the two, so the game stays audible without drowning out your voice.
Open Settings, choose Audio, and check the devices listed for desktop audio and microphone audio. The desktop audio device should match the speakers or headset the game sound comes through, and the microphone device should match the microphone on the desk or headset. If the wrong device is listed, change it here rather than in Windows, so OBS and Windows agree. In the audio mixer, set the microphone a little louder than the game, and watch the meters while the game runs: the microphone meter should move clearly when you speak, and the desktop meter should stay below the point where it turns red. Use one audio track for the live stream and a second track for the recording when you want to edit them apart later.
Choose between x264 and a hardware encoder
The encoder turns the picture into a stream, and the choice comes down to where the work happens. The x264 encoder uses the processor, while a hardware encoder uses the graphics card, and the right choice depends on which part of the computer has room to spare during a game.
If the graphics card has a built in hardware encoder, such as NVENC on NVIDIA cards, AMF on AMD cards, or Quick Sync on Intel graphics, that encoder usually suits a game stream, because it takes work off the processor while the game runs. The x264 encoder suits a strong processor with room to spare, and it suits a stream where the graphics card is already working hard on the game itself. In OBS, open Settings, choose Output, and look at the encoder list to see which options the hardware offers. Pick the hardware encoder when one is listed and the game leaves graphics headroom, pick x264 when the processor has room and the graphics card does not, and run a short test stream after switching, because the best choice depends on the balance of each machine.
Set bitrate using platform guidance and upload speed
Bitrate sets how much data the stream sends each second, and the right value sits below two limits: the platform limit and the upload speed. OBS documentation advises matching the bitrate to the platform and the connection, and the major platforms publish their own recommended ranges.
As a starting point, widely published platform guidance recommends about 6,000 kbps for a 1080p stream at 60 frames per second, about 4,500 kbps for 1080p at 30 frames per second or 720p at 60 frames per second, and about 2,500 to 3,000 kbps for 720p at 30 frames per second. Keep the total bitrate, including audio, within about 75 percent of the tested upload speed, so a short dip in the connection does not drop frames. Set the rate control to CBR for a live stream, because a constant bitrate gives the platform a steady flow, and set the keyframe interval to 2 seconds, which matches common platform guidance. If the stream drops frames, lower the bitrate or the output resolution before changing the encoder, because a bitrate the connection cannot sustain causes more trouble than any encoder setting.
Use a fullscreen projector on the second monitor
A fullscreen projector sends a clean copy of the OBS preview or program output to the second monitor, so you can watch the stream picture at full size while the OBS controls stay on another part of the screen. It suits a dual monitor desk well, because the second monitor can show the stream picture while the game runs on the first.
Send a clean preview to the second monitor
Right click the preview in OBS, choose the fullscreen projector option, and pick the monitor that should show it. The projector shows the program output, which is the picture viewers see, without the OBS panels around it. That view makes it easy to spot a misplaced overlay or a camera that drifted out of frame.
Set up the projector after the scenes are built, because it mirrors the program output and follows every scene switch. To use it, right click on the preview area in the main OBS window, open the fullscreen projector menu, and select the second monitor by its number. The projector opens on that monitor in full screen, and it stays there while you work in OBS. Press Escape or close the projector window to end it. If the projector opens on the wrong monitor, close it, check the monitor numbers in Windows display settings, and pick the other number from the projector menu. Use the projector for the program output rather than the preview when you want to see exactly what viewers see, including scene transitions as they happen.
Fix common dual monitor problems in OBS
Most dual monitor problems in OBS come from a wrong monitor number, a capture mode that does not fit the game, or an audio device that points at the wrong output. Work through the fixes one at a time, change one setting per test, and watch the preview after each change. A calm, step by step check solves most of these problems quickly.
OBS captures the wrong monitor
A wrong monitor capture usually means the source points to a different monitor number from the one you meant, or the Windows arrangement does not match the desk. Open the source properties, check the monitor number, and compare it with the numbers in Windows display settings. Then fix the number and check the preview again.
Start by opening Windows display settings and clicking Identify, so each monitor shows its number on screen. Note which number belongs to the game monitor and which belongs to the control monitor. Then open the capture source in OBS, read the monitor it points to, and change it to the right number. If the numbers match but the picture still looks wrong, check whether the Windows screen order matches the desk: drag the screen icons in Windows display settings until they sit in the same left to right order as the monitors on the desk. After fixing the order, restart OBS so it reads the new layout, and confirm the preview shows the intended screen before going live.
Black screen in game capture or display capture
A black screen usually means the capture source cannot see the game or the monitor, and the cause differs by capture mode. For game capture, the game may be running in a mode the source cannot hook into, or the source may point to a window that closed. For display capture, a wrong monitor choice or a graphics setting may block the picture.
For game capture, first confirm the game is running and set to full screen or borderless windowed mode, because a minimized game gives the source nothing to capture. Then open the game capture source properties, set it to capture a specific window, and choose the game again from the list. If the screen stays black, try running OBS as administrator, because some games need that permission before a capture source can read them, and close any overlay software that may block the capture. For display capture, check that the source points to the right monitor number, and try the capture method options in the source properties when the default method shows black. Change one option, check the preview, and keep the option that shows the picture.
Audio echo and lag during a stream
Echo usually means the same sound reaches OBS through two paths, such as desktop audio plus a microphone that picks up the speakers. Lag usually means the bitrate, the encoder, or the frame rate asks for more than the hardware or the connection can give. Both problems have simple checks, and the fix depends on which symptom you hear or see.
To fix echo, mute the speakers and use headphones, so the microphone cannot hear the game sound coming from the desk. Then check the audio mixer in OBS: the desktop audio meter should move with the game, and the microphone meter should move only when you speak. If both meters move when only the game plays, the microphone is hearing the speakers, or a second copy of the desktop audio is enabled in the Audio settings. Turn off the duplicate device and test again. To fix lag, lower the output resolution or the bitrate first, because those two settings cut the load fastest. If the picture still stutters, switch the encoder or lower the frame rate, and close programs that use the processor or the network while you stream.
Frequently asked questions
These questions cover the choices that come up most often when setting up OBS with two monitors. Each answer keeps the setup simple, because a dual monitor desk works best when the settings stay easy to repeat. Read the answer that matches your situation, then apply it to your own desk.
Do I need two monitors to stream well
Two monitors help a lot, but they are not required for a good stream. A single monitor can still stream well when the game runs full screen and OBS runs in the background, but you lose the live view of chat, alerts, and audio meters. The second monitor adds control and awareness, not picture quality.
A streamer with one monitor can still produce a clean stream by setting up scenes before going live, using hotkeys to switch scenes, and checking the stream on a phone or tablet for chat. That setup works, but it needs more planning, because every check means leaving the game or reaching for another device. A second monitor removes that friction: chat, the OBS preview, and the audio meters stay visible the whole time, so problems get noticed sooner. If a second monitor fits the desk and the budget, it is one of the simplest upgrades for a streamer who already has a working single monitor setup.
Can I use different resolutions on each monitor
Yes, the two monitors can run at different resolutions, and OBS handles that by scaling each source to the canvas. The game monitor should run at its native resolution, and the control monitor should run at whatever resolution keeps its text readable. The canvas and the output resolution decide what viewers see, not the control monitor.
Set the game monitor to its native resolution in Windows display settings, because that gives the sharpest game picture. Set the second monitor to its own native resolution as well, because a control screen that runs below its native resolution shows blurry text. In OBS, set the canvas to the resolution you want viewers to see, and let the game capture source scale the game picture to fit the canvas when the game resolution differs from it. A mismatch between the two monitors never forces a mismatch in the stream, because the canvas sits between the monitors and the output and sets the picture size on its own.
Conclusion
Set the game on the main monitor, keep OBS and chat on the second, match the canvas to the stream you want, and use game capture for the game itself. Pick an encoder and a bitrate that fit the hardware and the connection, then watch the preview and the meters during a short test. That order gives a clean picture and clear audio.
Write Your Review
No reviews yet. Be the first to share your experience!