From the Ubuntu software app I clicked on Lenovo firmware upgrade. After a reboot I'm facing multiple issues:
1) sound not working. Settings->sound is on "dummy output" by default but even changing output device to "speakers" doesn't work. I tried sudo alsa force-reload but nothing changed.
x@y:~$ lspci -nnk | grep -A2 Audio
00:1f.3 Audio device [0403]: Intel Corporation Cannon Point-LP High Definition Audio Controller [8086:9dc8] (rev 30)
Subsystem: Lenovo Cannon Point-LP High Definition Audio Controller [17aa:2279]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel, sof_pci_dev
2) Bluetooth headset (Bose QC-II) doesn't connect (via Bluetooth) to the PC anymore.
3) Each login (I'm using an external monitor), right after clicking on "login" the monitor losses signal from the laptop (I see a black screen saying "HDMI"), and then I'm back to the login screen. The second time, I always manage to login (even if the screen becomes first all purple and lags for a couple of seconds)
