Intel Wireless AC 9462 ne fonctionne pas avec 18.04 LTS

C'est donc reparti. Encore un problème de Wi-Fi dans une installation propre d'Ubuntu 18.04 LTS.

dmesg | grep iwl

me donne ça :

[    1.644366] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[    1.674861] iwlwifi 0000:00:14.3: loaded firmware version 43.95eb4e97.0 op_mode iwlmvm
[    1.694573] iwlwifi 0000:00:14.3: Detected Intel(R) Dual Band Wireless AC 9462, REV=0x354
[    6.709017] iwlwifi 0000:00:14.3: Failed to load firmware chunk!
[    6.709020] iwlwifi 0000:00:14.3: iwlwifi transaction failed, dumping registers
[    6.709021] iwlwifi 0000:00:14.3: iwlwifi device config registers:
[    6.709093] iwlwifi 0000:00:14.3: 00000000: 02f08086 00100406 02800000 00800000 a1218004 00000000 00000000 00000000
[    6.709094] iwlwifi 0000:00:14.3: 00000020: 00000000 00000000 00000000 42a48086 00000000 000000c8 00000000 000001ff
[    6.709095] iwlwifi 0000:00:14.3: iwlwifi device memory mapped registers:
[    6.709123] iwlwifi 0000:00:14.3: 00000000: 58489004 00000040 00000000 00000000 00000000 00000000 00000000 00000000
[    6.709124] iwlwifi 0000:00:14.3: 00000020: 00000011 0c040005 00000351 d55555d5 d55555d5 d55555d5 80008040 001f0040
[    6.709141] iwlwifi 0000:00:14.3: Could not load the [0] uCode section
[    6.709161] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -110
[    6.709162] iwlwifi 0000:00:14.3: Collecting data: trigger 15 fired.
[    6.916301] iwlwifi 0000:00:14.3: Failing on timeout while stopping DMA channel 8 [0x0bad1122]
[    6.928661] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110

et le contrôleur de réseau dans lspci est, pour une raison quelconque, répertorié comme 02f0 au lieu de l'Intel Dual Band Wireless 9462 :

00:14.3 Network controller: Intel Corporation Device 02f0