Aspire R5 571TG HDMI port & Fn button not working

jalex137

The original PCI SSD failed (I diagnosed it with a bootable USB thumb drive). I removed the SSD and the original SATA 1TB HDD, and installed a SATA 2TB SSD. Reinstalled Windows 10, I did not have recovery media. I was thinking it had upgraded to Windows 11, but MS says it doesn't meet hardware requirements. It's working well except three issues:

1. HDMI port not working, will not connect to my TV or monitor
2. Windows reports it is not compatible with Miracast, so I can't connect to my Roku smart TV
3. Keyboard screen brightness control (Fn button) not working

All these had been working fine before. I'm looking for suggestions.

[Edited the thread to add issue detail]