Laptop screen is black when fully opened

Test the display with an external monitor and reset the graphics driver; if the external display remains stable while the built-in screen turns black at the same lid angle, contact Dell for inspection of the display cable, hinge area, panel, or lid sensor.

Run these non-destructive checks first

Since restarting did not help, use tests that distinguish Windows or driver trouble from an internal-display hardware problem:

1. Reset the graphics driver
   • Open the lid only far enough to see the screen.
   • Press Windows + Ctrl + Shift + B.
   • A successful reset normally produces a beep or brief screen flicker.
   • Slowly open the lid fully and check whether the image remains visible. ^1^
2. Correct the display-output mode
   • Press Windows + P.
   • Press P again, followed by Enter.
   • Repeat if necessary to cycle through the projection modes, looking for PC screen only. ^1^
3. Test an external monitor or television
   • Connect it through HDMI or another supported display connection.
   • Open the laptop lid slowly through the angle where its screen normally goes black.
   • Interpret the result:
     • External image stays normal, internal image consistently cuts out by lid angle: this strongly points to hardware in the lid/hinge/display path. Back up important files and contact Dell, particularly if the laptop is under warranty.
     • Both displays go black: proceed to the graphics-driver test below.
     • Moving the lid affects both displays or puts the computer to sleep: report that detail to Dell because the lid sensor may be involved.

Avoid repeatedly flexing the hinge once the problem is reproducible, because a damaged or loose internal cable could worsen.

Test the graphics driver

Microsoft notes that blank screens following an update can be associated with incompatible drivers. In Device Manager:

1. Right-click Start and select Device Manager.
2. Expand Display adapters.
3. Right-click the graphics adapter and select Properties.
4. Open the Driver tab.
5. If Roll Back Driver is available, select it and restart.
6. Otherwise, select Update Driver and then Search automatically for drivers.

If the normal screen is too difficult to use, enter Recovery Mode and select:

Troubleshoot → Advanced options → Startup Settings → Restart → F5

Then perform the driver test in Safe Mode. Microsoft specifically recommends updating or rolling back the display driver when a blank screen begins after an update. ^1^

Do not uninstall the security update yet

Microsoft’s November 2026 release information does not list this lid-angle symptom as a known Windows 11 issue. The documented 26H2 black-screen issue was primarily associated with virtual desktop environments, occurred after sign-in, and was resolved in October 2026—different from a physical-angle-dependent laptop display. ^2^

If Settings → System → About shows Windows 11 26H1, its November 10 update page also states that Microsoft is not currently aware of issues with that update. ^3^

As a later diagnostic step—only if both internal and external displays fail and the driver test changes nothing—you can uninstall the latest quality update:

Settings → Windows Update → Update history → Uninstall updates

Select the update installed immediately before the problem began. This temporarily removes its security fixes, so reinstall current updates after testing or once the driver issue is corrected. Microsoft recommends trying Windows 11 repair/reinstallation before removing a security update, and notes that some updates cannot be uninstalled. ^4^

References

1. Troubleshooting blank screens in Windows | Microsoft Support
2. Windows 11, version 26H2 known issues and notifications
3. November 10, 2026 — KB5132059 (OS Build 28000.3501)
4. [Windows 11](https://support.microsoft.com/windows/deployment/updates-lifecycle/how-to-uninstall-a-windows-update#summary)