Comment 14 for bug 1874685

For what it's worth, I have a Dell Inspiron 3593 with a "Intel Corporation Killer Wi-Fi 6 AX1650i 160MHz Wireless Network Adapter (201NGW) (rev 30)"

I installed 20.04 5.6.0-1011-oem from the -proposed ppa and copied latest files from linux-firmware.git/tree/. Firmware loads and wifi works, but Bluetooth headset will work as A2DP sink but not HSP/HFP mode.

Since this same headset *does* work properly with both Ubuntu 18.04 and 20.04 on an older Dell laptop, I conclude that its a problem with the iwlwifi driver or the firmware for the AX1650i.

[ 12.506365] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[ 12.526629] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-Qu-c0-jf-b0-52.ucode failed with error -2
[ 12.526790] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-Qu-c0-jf-b0-51.ucode failed with error -2
[ 12.772488] iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version: 58.3.35.22
[ 12.772680] iwlwifi 0000:00:14.3: loaded firmware version 50.3e391d3e.0 Qu-c0-jf-b0-50.ucode op_mode iwlmvm
[ 13.160717] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9462, REV=0x338
[ 13.280655] iwlwifi 0000:00:14.3: base HW address: ac:67:5d:df:7c:9e
[ 13.982441] iwlwifi 0000:00:14.3 wlp0s20f3: renamed from wlan0