rtl8812au-dkms does not work after upgrade to 20.04

[etzhaim]

Driver worked on 18.04 with some minor glitches (i.e. needed reinstalling after every kernel upgrade). Does not work at all now. USB wifi adapter is detected:

$ lsusb
Bus 001 Device 002: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac 2T2R DB WLAN Adapter

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: rtl8812au-dkms 4.3.8.12175.20140902+dfsg-0ubuntu12
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Nov 21 22:08:20 2020
InstallationDate: Installed on 2018-01-07 (1049 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
PackageArchitecture: all
SourcePackage: rtl8812au
UpgradeStatus: Upgraded to focal on 2020-11-21 (0 days ago)

[Eric Boucher (bouchereric0000)]

Je me connecte sous mon compte ubuntu car j'ai la même situation.

Voici comment j'ai réparé, la procédure est partie prenante de recherches, elle n'est pas nécessaire à 100% :

git clone -b v5.6.4.2 https://github.com/aircrack-ng/rtl8812au.git (J'ai pris une version modifié récement de rtl8812au)
cd rtl* (J'ai changé de dossier pour le dossier pris du git.)
sudo apt-get update (Mise à jour des liste en vue des dépendances.)
sudo apt-get install build-essential libelf-dev linux-headers-`uname -r` (Installation des dépendances.)
apt-get install rtl8812au-dkms --reinstall (N'AS PAS RÉGLÉ LE PROBLEME && Test si dépendance aussi active pour le packet officiel)
sudo make dkms_install (Je suis toujours dans le dossier pris du git donc je lance la solution du git.)

RÉSULTAT :
8812au, 5.6.4.2_35491.20191025, 5.4.0-59-generic, x86_64: installed
rtl8812au, 4.3.8.12175.20140902+dfsg, 5.4.0-59-generic, x86_64: installed

J'ai finalement débranché et rebranché physiquement mon module.

Bonne année 2021 !

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[EricDP (eric-arcticbears)]

Just upgraded to 22.04.1 and still cannot use this device. Plugging in the device yields the following trace in dmesg:

[57185.031592] RTL871X: module init start
[57185.031594] RTL871X: rtl8812au v4.3.8_12175.20140902
[57185.031595] RTL871X: build time: Sep 1 2022 09:38:03
[57185.031653] ------------[ cut here ]------------
[57185.031654] WARNING: CPU: 9 PID: 66679 at net/wireless/core.c:896 wiphy_register+0x65c/0x8d0 [cfg80211]
[57185.031693] Modules linked in: 8812au(OE+) cfg80211 nft_chain_nat xt_MASQUERADE xt_tcpudp xt_nat nf_nat nft_counter xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables nfnetlink binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec crct10dif_pclmul ghash_clmulni_intel aesni_intel snd_hda_core crypto_simd snd_hwdep cryptd snd_pcm rapl mei_hdcp i915 sch_fq_codel snd_seq_midi nls_iso8859_1 intel_cstate joydev input_leds snd_seq_midi_event r8188eu(C) snd_rawmidi ttm drm_kms_helper snd_seq cec coretemp snd_seq_device nct6775 snd_timer rc_core hwmon_vid ipmi_devintf i2c_algo_bit intel_wmi_thunderbolt snd ee1004 mxm_wmi ipmi_msghandler fb_sys_fops mei_me syscopyarea soundcore sysfillrect msr mei sysimgblt acpi_pad mac_hid acpi_tad parport_pc ppdev lp parport ramoops
[57185.031755] reed_solomon drm pstore_blk pstore_zone mtd efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c hid_generic usbhid hid uas usb_storage crc32_pclmul r8169 nvme ahci i2c_i801 xhci_pci nvme_core i2c_smbus realtek libahci xhci_pci_renesas wmi video [last unloaded: rtl8821ce]
[57185.031780] CPU: 9 PID: 66679 Comm: systemd-udevd Tainted: G C OE 5.15.0-47-generic #51-Ubuntu
[57185.031785] Hardware name: Micro-Star International Co., Ltd. MS-7B48/Z370-A PRO (MS-7B48), BIOS 2.D3 11/18/2021
[57185.031787] RIP: 0010:wiphy_register+0x65c/0x8d0 [cfg80211]
[57185.031814] Code: 1a 0b 00 41 80 ff 01 0f 86 88 fd ff ff e9 1a 46 07 00 0f 0b b8 ea ff ff ff e9 51 fc ff ff 0f 0b b8 ea ff ff ff e9 45 fc ff ff <0f> 0b b8 ea ff ff ff e9 39 fc ff ff 0f 0b b8 ea ff ff ff e9 2d fc
[57185.031818] RSP: 0018:ffffbd2dc707b990 EFLAGS: 00010246
[57185.031821] RAX: ffffffffc15e3190 RBX: 0000000000000000 RCX: ffffffffc15e3180
[57185.031822] RDX: ffffffffc15e3220 RSI: 0000000000000004 RDI: 0000000000000008
[57185.031824] RBP: ffffbd2dc707ba30 R08: 0000000000000000 R09: ffff9cc6ce4d8000
[57185.031825] R10: 0000000000ffff0a R11: fffffffffffff800 R12: ffff9cc6ce4dc300
[57185.031829] R13: 0000000000000005 R14: 0000000000000004 R15: 0000000000000001
[57185.031830] FS: 00007f2847fc08c0(0000) GS:ffff9cc8dec40000(0000) knlGS:0000000000000000
[57185.031832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[57185.031833] CR2: 00007f28473be0e6 CR3: 00000003a5390001 CR4: 00000000003706e0
[57185.031835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[57185.031836] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[57185.031837] Call Trace:
[57185.031839] <TASK>
[57185.031841] ...