Question HDMI not working properly. Lenovo ideapad 510

[wroblo5]

Hi, I have a problem with my HDMI output. My Laptop Lenovo Ideapad510 has 2 graphic cards: 1. IntelHD520 and another Nvidia 940MX and HDMI which usually does not work (I am running Windows 10). After days of trying to find solution I managed to find only temporary solution: Every time I want to use HDMI I need to 1. Turn on external projector, 2. Restart laptop 3. Enter Bios settings and change Graphic card settings to [discrete or UMA Only] and then hdmi is working correctly. I have tried to update graphic cards drivers both from Intel and Nvidia sites (older and the newest), Windows Update and updated BIOS itself nothing changed. Anyone had experienced similar situation? I will be grateful for any advice! 😊

 

[wroblo5]

Update. After newest Windows update HDMI is working. Hope it stay that way !

 

[wroblo5]

Not working again... 🙁