Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U Tent Mode Not Working Fix Windows 11

Tent mode or tablet mode does not activate correctly on your Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U – folding the screen into tent position does not disable the keyboard and touchpad, Windows does not switch to touch-optimized tablet UI, or auto-screen rotation does not work in tablet orientation. Lenovo mode switch driver updates restore automatic tent and tablet mode on the Yoga 7i Gen 9.

This guide covers Lenovo mode switch driver updates, Windows auto-rotation settings, and tablet mode configuration for the Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U in Windows 11.

“Yoga 7i Gen 9 keyboard stayed active in tent mode – kept getting accidental key presses while watching videos in tent. Lenovo Vantage mode switch driver update fixed it completely. Hinge position sensor now correctly disables keyboard when folded past 180 degrees.” – Rafiqa, teacher from Kota Bharu

Why Tent Mode Does Not Work on Yoga 7i Gen 9

The Lenovo Yoga 7i Gen 9 detects its physical orientation using a hinge angle sensor (accelerometer/magnetometer) that reports the current display angle to the Lenovo IdeaPad Mode Switch driver. When the hinge angle exceeds 180 degrees, the mode switch driver instructs Windows to disable the keyboard and touchpad hardware, preventing accidental input while the Yoga is in tent, stand, or tablet configuration. If the Lenovo IdeaPad Mode Switch driver is missing or outdated, the hinge sensor angle is not processed, the keyboard and touchpad remain active in all positions, and Windows never transitions to the touch-optimized UI regardless of the physical hinge position.

• Lenovo IdeaPad Mode Switch driver missing after Windows Update
• Hinge angle sensor driver (ACPI accelerometer) not loaded correctly
• Windows 11 auto-rotation disabled in Display Settings
• Lenovo Vantage not fully installed – mode switch component missing

Fix 1 – Update Lenovo Mode Switch Driver via Lenovo Vantage

Open Lenovo Vantage and go to System Update. Install Lenovo IdeaPad Mode Switch or Lenovo Yoga Mode Switch driver update. Restart. After restart, slowly fold the Yoga 7i Gen 9 screen past 180 degrees into tent position and hold it there for 2-3 seconds. Windows should switch the UI to tablet mode and the keyboard+touchpad should stop responding to input. If the transition works, the driver update resolved the hinge sensor detection. Also confirm that screen rotation activates by rotating the device between landscape and portrait while in tablet mode – the screen should rotate within 1-2 seconds of changing device orientation.

Fix 2 – Enable Auto-Rotation in Windows Settings

Go to Settings – System – Display. Look for Rotation lock toggle. Ensure Rotation lock is toggled Off (auto-rotation enabled). When Rotation lock is On, the display does not rotate even when the Yoga is physically in tablet or tent mode. The Rotation lock state is stored in Windows and persists across mode changes – if rotation lock was turned on while in laptop mode, it stays on when switching to tablet mode and must be manually turned off. After turning off Rotation lock, the Yoga 7i Gen 9 screen rotates based on the accelerometer sensor data processed by the Lenovo mode switch driver.

Check Sensor Monitoring in Device Manager

Open Device Manager – Sensors. Look for Lenovo IdeaPad Accelerometer, HID Sensor Collection, or Windows Sensor platform device. If the accelerometer sensor shows with a warning icon or is absent, the hinge detection cannot work. Right-click the sensor and select Update driver. If no sensor appears in the Sensors category even with View – Show hidden devices enabled, reinstall Lenovo Vantage which includes the sensor platform driver as a dependency component for the Yoga 7i Gen 9 mode switch functionality.

Fix 3 – Reinstall Lenovo Vantage

Uninstall Lenovo Vantage from Settings – Apps. Go to Microsoft Store and reinstall Lenovo Vantage. During Lenovo Vantage installation, it installs dependent drivers including the IdeaPad mode switch driver, sensor platform driver, and Fn key driver required for Yoga 7i Gen 9 mode detection. If the previous Lenovo Vantage installation was corrupted (common after Windows 11 feature updates), individual component drivers within Vantage may not have been installed even though Lenovo Vantage itself shows installed. A clean Vantage reinstall from Microsoft Store ensures all component drivers are installed fresh for complete Yoga 7i Gen 9 mode functionality.

Fix 4 – Test Tent Mode with Touch Input

After driver update, verify tent mode is active by attempting to type on the keyboard – if mode switch is working, the keyboard produces no character input while the device is in tent position (keyboard is hardware-disabled by the embedded controller under mode switch driver instruction). Test touch input on the display – touch should work normally in tent mode for navigating the touch-optimized Windows interface. If keyboard is correctly disabled but screen touch does not respond, check Settings – Accessibility – Touch – Touch gestures are enabled for touch functionality verification on the Yoga 7i Gen 9 in tent and tablet configurations.

Frequently Asked Questions

Why does tent mode not work on Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U?

Lenovo IdeaPad Mode Switch driver missing. Update via Lenovo Vantage System Update. Also check hinge sensor in Device Manager – Sensors for accelerometer without warning icons.

How do I activate tent mode on Lenovo Yoga 7i Gen 9?

Fold screen past 180 degrees. Windows auto-switches with keyboard disabled. If no response, update Lenovo IdeaPad Mode Switch driver via Lenovo Vantage.

Does Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U rotate screen in tent mode?

Yes – auto-rotation via gyroscope sensor. Requires Lenovo mode switch driver and Rotation lock Off in Display Settings for orientation-based screen rotation.

Why does keyboard keep working in tent mode on Lenovo Yoga 7i Gen 9?

Lenovo IdeaPad Mode Switch sensor not detecting hinge above 180 degrees. Update mode switch driver via Lenovo Vantage to restore keyboard disable in tent/tablet positions.

Conclusion

Lenovo Yoga 7i Gen 9 Intel Core Ultra 7 155U tent mode not working in Windows 11 is resolved by updating the Lenovo IdeaPad Mode Switch driver via Lenovo Vantage, which restores hinge angle sensor processing for automatic keyboard and touchpad disable when folded past 180 degrees. Windows Display Settings Rotation lock Off enables screen auto-rotation based on sensor data in tablet and tent modes. Lenovo Vantage clean reinstall from Microsoft Store repairs corrupted mode switch component driver installations from Windows 11 feature update interference. Device Manager sensor device check confirms hinge accelerometer hardware is enumerated and initialized for mode detection on the Yoga 7i Gen 9.