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Mux switch: How to turn off the discrete GPU after switching on the Optimus, Lenovo Y540 - Graphics & Display - Manjaro Linux Forum
![Amazon.com: Lenovo Thinkpad W550s i7-5500U 8GB 256GB FHD 1920x1080 Nvidia K620M Laptop : Electronics Amazon.com: Lenovo Thinkpad W550s i7-5500U 8GB 256GB FHD 1920x1080 Nvidia K620M Laptop : Electronics](https://m.media-amazon.com/images/I/41TPBUPGaSL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Lenovo Thinkpad W550s i7-5500U 8GB 256GB FHD 1920x1080 Nvidia K620M Laptop : Electronics
![please help!! my lenovo thinkpad won't turn on but the keyboard lights are on but the power button isn't lighting up. i already removed the battery and charger and nothing changed. I please help!! my lenovo thinkpad won't turn on but the keyboard lights are on but the power button isn't lighting up. i already removed the battery and charger and nothing changed. I](https://i.redd.it/ghiu2hyo3a631.jpg)
please help!! my lenovo thinkpad won't turn on but the keyboard lights are on but the power button isn't lighting up. i already removed the battery and charger and nothing changed. I
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