how to fix dark screen on lenovo laptop
Use these keys to set the screen-brightness to a desired level. Conclusion. You have diagnosed the status of the Lenovo Thinkpad L512 laptop battery, power adapter and the brightness settings with assistance from iYogi and have successfully resolved the black screen issues in Lenovo Thinkpad L512 laptop.iYogiâs Annual Unlimited Subscription Plan.ou have diagnosed the status of the Lenovo Thinkpad L512 laptop battery, power adapter and the brightness settings with assistance from iYogi and have successfully resolved the black screen issues in Lenovo Thinkpad L512 laptop. iYogiâs Annual Unlimited Subscription Plan.