Screen order reverses after switching HDR modes

You switch HDR on or off, and suddenly the mouse moves to the wrong monitor or your windows open on the other side. The screens may still be connected, but the operating system can change their arrangement after a display reconnects.

First identify which physical screen is which, then correct the desktop layout after setting HDR to the mode you want. The Screens tool can show connected screens and run a color test on them, so you can match each screen to its position on your desk.

Check which screen is which

1. Open Screens and check which connected displays the browser can see. Note the resolution and scale shown for each one.
2. Use the tool's color test on each screen to identify it physically. For example, note whether the test appears on the monitor to your left, the laptop display, or the screen above your desk.
3. Switch to the HDR mode you normally use. Wait for the screens to go black and reconnect, if that happens, then check whether the picture returns on every display.
4. Open your operating system's display settings and compare its numbered screen tiles with the physical positions you noted. Correct the arrangement there, rather than changing cables just to move a screen's position.

A browser test helps you identify displays, but it does not change the operating system's desktop layout. Finish the check in Windows or macOS display settings.

What the result means

Both screens appear, but the desktop order is wrong

The displays are connected. The operating system's arrangement no longer matches the way they sit on your desk. Drag the display tiles into the correct positions, then check that the pointer moves between screens in the expected direction.

A screen disappears after changing HDR

The display may be reconnecting, or the cable, port, dock, or graphics driver may not be handling the new mode reliably. Wait several seconds. If it stays missing, turn HDR off and reconnect the display before testing again.

The screen tiles look right, but a window opens on the wrong display

The overall arrangement may be correct while the primary display has changed. Check which screen is marked as the main display, and set the one you use most often as primary. Some apps also remember their own last-used screen.

The screens are in the right order, but colors look different

That is a color or HDR difference, not a reversed screen arrangement. HDR can change brightness and color appearance. Check HDR settings and the display's own picture mode separately from the desktop layout.

How to fix the display order

1. Set the HDR mode first. On Windows 11, open Settings › System › Display › HDR and set HDR the way you plan to use it. On a Mac, open System Settings › Displays, select the display, and check its High Dynamic Range option if it is available. HDR support and options vary by display.
2. Rearrange the screens. On Windows 11, open Settings › System › Display. Select Identify to show a number on each screen, then drag the numbered tiles until their positions match your desk. On macOS, open System Settings › Displays and arrange the display previews to match their physical positions.
3. Check which display is primary. In Windows 11, select the screen you want to use as primary in Settings › System › Display, then check Make this my main display if shown. On macOS, use the display arrangement controls to set the main display when that option is available. Menu labels can vary slightly by version.
4. Apply the layout and test the pointer. Move the pointer across the edges between screens. If it crosses too high, low, or on the wrong side, adjust the tiles again. Their relative position matters, not just their left-to-right order.
5. Reconnect the display path. If a screen keeps disappearing, disconnect and reconnect its cable, then test another port or bypass the dock temporarily. If the screen works without the dock, check the dock, adapter, or cable against the resolution and HDR mode you want to use.
6. Refresh the graphics connection. On Windows, press Windows + Ctrl + Shift + B to restart the graphics driver, then check the arrangement again. On either system, restart the computer if the display order keeps changing after reconnecting.

Keep the layout stable after HDR changes

Changing HDR can briefly disconnect a display while the computer and monitor negotiate a video mode. A dock, adapter, or slow-to-wake monitor can make that look like a screen has moved or disappeared. The computer may then rebuild its display arrangement when the monitor returns.

After you have chosen the HDR mode you want, arrange the displays one last time and test pointer movement. If the order changes only when using a particular dock or adapter, keep the same cable path while checking its firmware or compatibility. Avoid repeatedly switching HDR during normal work if the display connection is unstable.

If a screen remains missing even with HDR off and a direct cable connection, check the monitor input and cable, then update the graphics driver or contact the computer or display maker for help.