I have a stupid problem with my monitor. I was in screen resolution and changed some stuff. it said that it was possible to use a screen 1 and screen 2, but i only have one monitor connected, I pressed the screen 2. ´so my problem is that my pc is connected to a monitor that isn't there..there is no signal to my monitor from my pc.

Is there something I can press to switch the screen or do I have to connect it with a new screen to fix it?

I use windows 7 and have a alienware standard keyboard.

Dani AI

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Brief summary: (Windows 7, Alienware keyboard) changed display settings and the desktop is now being sent to a non‑present display, leaving the physical monitor with “no signal.” Replies from and correctly point to keyboard display toggles as the quickest fix; the notes below cover reliable alternatives and recovery steps when those toggles don’t help.

Quick hardware checks and simple fixes:

  • Confirm the monitor is powered and its front‑panel input selector matches the cable in use.
  • Reseat or swap the video cable (DVI/HDMI/VGA) and, if available, try a different output on the video card or a different display/TV to rule out a bad cable or port.
  • If a temporary second screen can be attached, it will make restoring display settings straightforward.

Software recovery options (no extra monitor):

  • Boot to the Windows Advanced Boot Options (the F8 menu on Windows 7) and choose the low‑resolution or Safe Mode entry so the desktop appears. From there, open Display Settings and set the system back to a single active monitor and a safe resolution.
  • If the wrong configuration came from a recent change, use System Restore (available from Safe Mode) or the “Last Known Good” option in the Advanced Boot Options to roll back the change.
  • If the problem persists after the desktop is visible, uninstall/roll back the graphics driver and reinstall the correct driver for the GPU.

When the above fail: temporarily attach any spare monitor/TV, use remote access from another computer (if enabled) to change display settings, or check the video card seating and power. The keyboard toggles mentioned earlier by and are fastest; Safe Mode/System Restore and a temporary second display are the most reliable fallbacks.

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If you are running Windows, there should be a function key combination (look for the blue FN key, and a function key at the top of the keyboard that looks like a display) to switch between monitors. That should work. Another approach is if your system supports multiple monitors, you could plug the display into the other port.

Press this combination to change between multi-display options. You may need to change between display settings:

Windows key & P together

To transfer an open window from a different display use this combination:

Windows key & Shift & Right Arrow or Left Arrow depending on which side the open window is on.

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