Every peripheral is working, Wifi, Mic, Camera, USB etc.
I’m on Qubes v 4.2.3 and restarting the whole OS does not work on my end. It just blanks the screen and I waited for it to restart but to no avail. Keyboard still active but no screen. So I just select (Shut Down) and turn it on again to boot.
Qubes-HCL-Dell_Inc_-Inspiron_5480-20241223-095959.yml (970 Bytes)
In BIOS, have you tried disabling Secure Boot and enabling Virtualization features?
Yes, Secure Boot is disabled and Virtualization features are enabled in BIOS.
Actually everything is working except restarting the OS. I have been using Qubes about 2 years now and I can’t solve this problem. When I restart my laptop the screen goes black, keyboard is still working but it stays that way, so I choose to shutdown and turn my laptop on again… but it’s ok I LOVE Qubes and it’s been my daily driver ever since switching from Windows and Ubuntu. 
Thanks @Sven