Yes, I am facing this issue too. Even with Ubuntu 18.04 and Ubuntu 20.04 as my kernel version for both is 5.4.0.
Wifi used perfectly fine on Ubuntu 18.04 until it's kernel is upgrade to 5.4. Now, it doesn't identify any available wifi network. It would be great if we can resolve this ASAP. It's getting hard to use Ubuntu without wifi connectivity. I have tried various workarounds mentioned here: https://askubuntu.com/questions/1235542/realtek-drivers-not-working-with-ubuntu-20-04-kernel-5-4 Thanks for the support. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1853050 Title: Realtek RTL8822BE [10ec:b822] Subsystem [1a3b:2950] Wifi fails to connect (RTL8822BE, linux 5.3.0 w/ rtwpci) Status in linux package in Ubuntu: Incomplete Bug description: Wifi just fails to connect to an access point after upgrading from Ubuntu 19.04 to 19.10. Some outputs: uname -a Linux mothership 5.3.0-23-generic #25-Ubuntu SMP Tue Nov 12 09:22:33 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux lspci -nnk | grep 0280 -A3 03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822] Subsystem: AzureWave RTL8822BE 802.11a/b/g/n/ac WiFi adapter [1a3b:2950] Kernel driver in use: rtw_pci Kernel modules: rtwpci The typical failure looks like this in journalctl: Nov 18 23:04:13 mothership kernel: wlp3s0: send auth to d4:60:e3:15:4d:71 (try 3/3) Nov 18 23:04:13 mothership kernel: ------------[ cut here ]------------ Nov 18 23:04:13 mothership kernel: purge skb(s) not reported by firmware Nov 18 23:04:13 mothership kernel: WARNING: CPU: 5 PID: 0 at drivers/net/wireless/realtek/rtw88/tx.c:156 rtw_tx_report_purge_timer+0x25/0x60 [rtw88] Nov 18 23:04:13 mothership kernel: Modules linked in: nf_conntrack_netlink xt_owner xt_conntrack xt_MASQUERADE nfnetlink xfrm_user xfrm_algo iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c xt_addrtype bpfilter aufs overlay binfmt_misc nvidia_uvm(O Nov 18 23:04:13 mothership kernel: spi_pxa2xx_platform videobuf2_memops asus_wmi videobuf2_v4l2 i915 mxm_wmi wmi_bmof sparse_keymap serio_raw videobuf2_common cfg80211 dw_dmac soundcore dw_dmac_core videodev input_leds drm_kms_helper joydev ipmi_devintf libarc4 mc ipmi_ Nov 18 23:04:13 mothership kernel: CPU: 5 PID: 0 Comm: swapper/5 Tainted: P W OE 5.3.0-23-generic #25-Ubuntu Nov 18 23:04:13 mothership kernel: Hardware name: ASUSTeK COMPUTER INC. X705UDR/X705UDR, BIOS X705UDR.300 08/29/2017 Nov 18 23:04:13 mothership kernel: RIP: 0010:rtw_tx_report_purge_timer+0x25/0x60 [rtw88] Nov 18 23:04:13 mothership kernel: Code: 00 00 00 00 00 0f 1f 44 00 00 8b 47 f0 85 c0 75 01 c3 55 48 89 e5 41 55 41 54 53 48 89 fb 48 c7 c7 f0 cd b3 c0 e8 f6 fa 7b f6 <0f> 0b 4c 8d 6b d8 4c 89 ef e8 dd 3f 1c f7 48 8d 7b e0 49 89 c4 e8 Nov 18 23:04:13 mothership kernel: RSP: 0018:ffffa25b4020ce48 EFLAGS: 00010286 Nov 18 23:04:13 mothership kernel: RAX: 0000000000000000 RBX: ffff913317bed848 RCX: 0000000000000006 Nov 18 23:04:13 mothership kernel: RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff91331eb57440 Nov 18 23:04:13 mothership kernel: RBP: ffffa25b4020ce60 R08: 0000000000001754 R09: 0000000000000004 Nov 18 23:04:13 mothership kernel: R10: 0000000000000000 R11: 0000000000000001 R12: ffff91331eb5b600 Nov 18 23:04:13 mothership kernel: R13: ffff913317bed848 R14: ffffffffc0adb7d0 R15: ffff913317bed848 Nov 18 23:04:13 mothership kernel: FS: 0000000000000000(0000) GS:ffff91331eb40000(0000) knlGS:0000000000000000 Nov 18 23:04:13 mothership kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 18 23:04:13 mothership kernel: CR2: 00007fb4eee0b000 CR3: 00000003818bc005 CR4: 00000000003606e0 Nov 18 23:04:13 mothership kernel: Call Trace: Nov 18 23:04:13 mothership kernel: <IRQ> Nov 18 23:04:13 mothership kernel: call_timer_fn+0x32/0x130 Nov 18 23:04:13 mothership kernel: __run_timers.part.0+0x177/0x270 Nov 18 23:04:13 mothership kernel: ? enqueue_hrtimer+0x3d/0x90 Nov 18 23:04:13 mothership kernel: ? recalibrate_cpu_khz+0x10/0x10 Nov 18 23:04:13 mothership kernel: ? ktime_get+0x42/0xa0 Nov 18 23:04:13 mothership kernel: run_timer_softirq+0x2a/0x50 Nov 18 23:04:13 mothership kernel: __do_softirq+0xe1/0x2d6 Nov 18 23:04:13 mothership kernel: ? hrtimer_interrupt+0x13b/0x220 Nov 18 23:04:13 mothership kernel: irq_exit+0xae/0xb0 Nov 18 23:04:13 mothership kernel: smp_apic_timer_interrupt+0x7b/0x140 Nov 18 23:04:13 mothership kernel: apic_timer_interrupt+0xf/0x20 Nov 18 23:04:13 mothership kernel: </IRQ> Nov 18 23:04:13 mothership kernel: RIP: 0010:cpuidle_enter_state+0xc5/0x420 Nov 18 23:04:13 mothership kernel: Code: ff e8 5f 73 83 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 3d 03 00 00 31 ff e8 c2 ce 89 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 89 d1 01 00 00 41 c7 44 24 10 00 00 00 00 48 83 c4 18 Nov 18 23:04:13 mothership kernel: RSP: 0018:ffffa25b400f3e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Nov 18 23:04:13 mothership kernel: RAX: ffff91331eb6a740 RBX: ffffffffb895a740 RCX: 000000000000001f Nov 18 23:04:13 mothership kernel: RDX: 0000000000000000 RSI: 000000004041ceb5 RDI: 0000000000000000 Nov 18 23:04:13 mothership kernel: RBP: ffffa25b400f3e78 R08: 000001076596b017 R09: 0000000000001d6b Nov 18 23:04:13 mothership kernel: R10: ffff91331eb694e4 R11: ffff91331eb694c4 R12: ffff91331eb75500 Nov 18 23:04:13 mothership kernel: R13: 0000000000000002 R14: 0000000000000002 R15: ffff91331eb75500 Nov 18 23:04:13 mothership kernel: ? cpuidle_enter_state+0xa1/0x420 Nov 18 23:04:13 mothership kernel: cpuidle_enter+0x2e/0x40 Nov 18 23:04:13 mothership kernel: call_cpuidle+0x23/0x40 Nov 18 23:04:13 mothership kernel: do_idle+0x1dd/0x270 Nov 18 23:04:13 mothership kernel: cpu_startup_entry+0x20/0x30 Nov 18 23:04:13 mothership kernel: start_secondary+0x168/0x1c0 Nov 18 23:04:13 mothership kernel: secondary_startup_64+0xa4/0xb0 Nov 18 23:04:13 mothership kernel: ---[ end trace 790af2fbd33b6733 ]--- Nov 18 23:04:14 mothership kernel: wlp3s0: authentication with d4:60:e3:15:4d:71 timed out ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-23-generic 5.3.0-23.25 ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7 Uname: Linux 5.3.0-23-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rainman 2262 F.... pulseaudio CurrentDesktop: XFCE Date: Mon Nov 18 23:03:02 2019 HibernationDevice: RESUME=UUID=f0785b69-497a-4e95-8fde-383d92032d8c InstallationDate: Installed on 2018-04-25 (571 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180425) MachineType: ASUSTeK COMPUTER INC. X705UDR ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic root=UUID=2a57a786-6271-474f-993f-104fa7b54fd6 ro "quiet splash acpi_osi=! acpi_osi=Windows 2009" nouveau.runpm=0 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.3.0-23-generic N/A linux-backports-modules-5.3.0-23-generic N/A linux-firmware 1.183.2 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-11-18 (0 days ago) dmi.bios.date: 08/29/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X705UDR.300 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X705UDR dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX705UDR.300:bd08/29/2017:svnASUSTeKCOMPUTERINC.:pnX705UDR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX705UDR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: X dmi.product.name: X705UDR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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