[  281.956392] ------------[ cut here ]------------
[  281.956396] failed to read DBI register, addr=0x0719
[  281.956428] WARNING: CPU: 1 PID: 738 at 
drivers/net/wireless/realtek/rtw88/pci.c:1311 
rtw_dbi_read8.constprop.0+0xb4/0xd0 [rtw88_pci]
[  281.956437] Modules linked in: ccm rfcomm vboxnetadp(OE) vboxnetflt(OE) 
vboxdrv(OE) cmac algif_hash algif_skcipher af_alg bnep snd_sof_pci_intel_cnl 
snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation 
soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp uvcvideo 
btusb videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 btrtl snd_sof 
videobuf2_common btbcm snd_sof_utils btintel snd_hda_codec_hdmi 
snd_soc_hdac_hda snd_hda_ext_core btmtk videodev bluetooth mc ecdh_generic ecc 
snd_soc_acpi_intel_match snd_soc_acpi soundwire_bus snd_soc_core snd_compress 
ac97_bus snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio 
snd_pcm_dmaengine intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp 
snd_hda_intel coretemp snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel 
snd_hda_codec kvm snd_hda_core snd_hwdep snd_pcm intel_rapl_msr 
crct10dif_pclmul mei_hdcp snd_seq_midi ghash_clmulni_intel mei_pxp 
snd_seq_midi_event aesni_intel rtw88_8822be crypto_simd snd_rawmidi 
 cryptd
[  281.956505]  rtw88_8822b rtw88_pci rapl binfmt_misc joydev rtw88_core 
intel_cstate i915 snd_seq nls_iso8859_1 mac80211 input_leds serio_raw 
intel_wmi_thunderbolt wmi_bmof drm_buddy cfg80211 snd_seq_device ttm snd_timer 
processor_thermal_device_pci_legacy libarc4 snd drm_display_helper 
processor_thermal_device processor_thermal_rfim cec processor_thermal_mbox 
processor_thermal_rapl rc_core soundcore drm_kms_helper mei_me i2c_algo_bit 
fb_sys_fops intel_rapl_common syscopyarea mei sysfillrect intel_soc_dts_iosf 
intel_pch_thermal sysimgblt hid_multitouch ideapad_laptop sparse_keymap 
platform_profile int3403_thermal int340x_thermal_zone mac_hid acpi_pad 
int3400_thermal soc_button_array acpi_thermal_rel sch_fq_codel msr parport_pc 
ppdev lp parport ramoops pstore_blk reed_solomon drm pstore_zone efi_pstore 
ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj usbhid 
hid_generic rtsx_pci_sdmmc crc32_pclmul nvme i2c_i801 i2c_smbus nvme_core ahci 
libahci intel_lpss_pci i2c_hid_acpi
[  281.956582]  intel_lpss i2c_hid rtsx_pci idma64 hid xhci_pci 
xhci_pci_renesas wmi pinctrl_cannonlake video
[  281.956593] CPU: 1 PID: 738 Comm: wpa_supplicant Tainted: G           OE     
5.19.0-35-generic #36~22.04.1-Ubuntu
[  281.956597] Hardware name: LENOVO 81N7/LNVNB161216, BIOS ALCN33WW(V2.10) 
06/23/2021
[  281.956599] RIP: 0010:rtw_dbi_read8.constprop.0+0xb4/0xd0 [rtw88_pci]
[  281.956603] Code: 1f 00 5b 41 5c 41 88 45 00 31 c0 41 5d 5d 31 d2 89 d6 89 
d7 c3 cc cc cc cc be 19 07 00 00 48 c7 c7 68 94 4a c0 e8 e4 7d fa f0 <0f> 0b b8 
fb ff ff ff 5b 41 5c 41 5d 5d 31 d2 89 d6 89 d7 c3 cc cc
[  281.956606] RSP: 0018:ffffab66809c7760 EFLAGS: 00010246
[  281.956609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  281.956611] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  281.956613] RBP: ffffab66809c7778 R08: 0000000000000000 R09: 0000000000000000
[  281.956615] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9255865120e0
[  281.956616] R13: ffffab66809c778f R14: 0000000000000000 R15: 0000000000000000
[  281.956618] FS:  00007ffb33092800(0000) GS:ffff9259dc680000(0000) 
knlGS:0000000000000000
[  281.956621] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  281.956623] CR2: 000055ce33a92b14 CR3: 000000010916a004 CR4: 00000000003706e0
[  281.956626] Call Trace:
[  281.956627]  <TASK>
[  281.956631]  rtw_pci_link_ps.part.0+0xa7/0xe0 [rtw88_pci]
[  281.956637]  rtw_pci_link_ps+0x1b/0x30 [rtw88_pci]
[  281.956641]  rtw_leave_lps_core+0x3e/0x180 [rtw88_core]
[  281.956660]  rtw_leave_lps+0x4a/0x90 [rtw88_core]
[  281.956674]  rtw_core_scan_start+0x21/0xd0 [rtw88_core]
[  281.956687]  rtw_ops_sw_scan_start+0x3d/0x60 [rtw88_core]
[  281.956699]  __ieee80211_start_scan+0x3c0/0x6f0 [mac80211]
[  281.956754]  ieee80211_request_scan+0x30/0x60 [mac80211]
[  281.956798]  ieee80211_scan+0x66/0x110 [mac80211]
[  281.956848]  rdev_scan+0x2a/0xe0 [cfg80211]
[  281.956897]  cfg80211_scan+0x101/0x140 [cfg80211]
[  281.956938]  nl80211_trigger_scan+0x42e/0x8d0 [cfg80211]
[  281.956986]  genl_family_rcv_msg_doit+0xe4/0x160
[  281.957018]  genl_rcv_msg+0xe2/0x1f0
[  281.957021]  ? nl80211_send_scan_start+0xc0/0xc0 [cfg80211]
[  281.957067]  ? genl_get_cmd+0x110/0x110
[  281.957071]  netlink_rcv_skb+0x53/0x110
[  281.957075]  genl_rcv+0x29/0x50
[  281.957078]  netlink_unicast+0x241/0x360
[  281.957082]  netlink_sendmsg+0x25d/0x4f0
[  281.957086]  sock_sendmsg+0x6c/0x80
[  281.957090]  ____sys_sendmsg+0x264/0x2a0
[  281.957093]  ? import_iovec+0x1b/0x30
[  281.957096]  ? sendmsg_copy_msghdr+0x8d/0xb0
[  281.957101]  ___sys_sendmsg+0x81/0xd0
[  281.957105]  ? sock_getsockopt+0x114/0xe30
[  281.957110]  ? begin_current_label_crit_section+0x2b/0xe0
[  281.957115]  ? unix_ioctl+0x170/0x1f0
[  281.957119]  ? aa_unix_opt_perm+0x28/0x120
[  281.957125]  __sys_sendmsg+0x5c/0xb0
[  281.957131]  __x64_sys_sendmsg+0x1d/0x30
[  281.957134]  do_syscall_64+0x59/0x90
[  281.957138]  ? do_syscall_64+0x69/0x90
[  281.957140]  ? do_syscall_64+0x69/0x90
[  281.957142]  ? do_syscall_64+0x69/0x90
[  281.957144]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  281.957150] RIP: 0033:0x7ffb32927b17
[  281.957153] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 
f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 
f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[  281.957155] RSP: 002b:00007ffda4a560b8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[  281.957158] RAX: ffffffffffffffda RBX: 0000562eb5421ec0 RCX: 00007ffb32927b17
[  281.957160] RDX: 0000000000000000 RSI: 00007ffda4a560f0 RDI: 0000000000000006
[  281.957162] RBP: 0000562eb5421dd0 R08: 0000000000000004 R09: 0000562eb55169d0
[  281.957164] R10: 00007ffda4a561d0 R11: 0000000000000246 R12: 0000562eb54fe280
[  281.957166] R13: 00007ffda4a560f0 R14: 0000000000000000 R15: 0000000000000000
[  281.957170]  </TASK>
[  281.957172] ---[ end trace 0000000000000000 ]---

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/2011592

Title:
  First, WiFi network disconnects automatically, then no WiFi networks
  are visible in the scanning list. Second, WiFi network connects
  normally, but there is no internet access.

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  First Issue:

  My laptop connects to WiFi networks fine, but after few seconds
  (occasionally after some time) it disconnects automatically. Right
  after no WiFi networks are visible in the scanning list of network.
  Then if I restart the laptop, after restarting it connects to WiFi
  networks fine, again after few seconds (occasionally after some time)
  it disconnects automatically. Then again no WiFi networks are visible
  in the scanning list of network. Note that, all the programs are up to
  date, so no additional drivers are available, and Ethernet works fine
  through Bluetooth tethering and USB tethering.

  Second Issue:

  My laptop connects to WiFi networks normally, but there is no internet
  access. I cannot browse internet, cannot update or download anything.
  Note that, all the programs are up to date, so no additional drivers
  are available, and Ethernet works fine through Bluetooth tethering and
  USB tethering.

  Here are the logs:

  rtw_8822be failed to read ASPM
  rtw_8822be failed to power on mac
  rtw_8822be failed to poll offset=0x5 mask=0x2 value=0x0

  Laptop Model: Lenovo Ideapad S340-14IWL
  WiFi Adapter: Realtek RTL8822BE

  Description:  Ubuntu 22.04.2 LTS
  Release:      22.04
  Kernel:         5.19.0-35-generic
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  grugel     1907 F.... pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 22.04
  InstallationDate: Installed on 2023-02-27 (15 days ago)
  InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64 
(20230223)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 13d3:56b2 IMC Networks Integrated Camera
   Bus 001 Device 004: ID 0bda:b023 Realtek Semiconductor Corp. RTL8822BE 
Bluetooth 4.2 Adapter
   Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 81N7
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-35-generic 
root=UUID=f74db4cb-fd07-4038-a2eb-80f1ff570da1 ro quiet splash 
resume=UUID=3ee07529-ca93-4e42-be32-b8a8ccbaba03 vt.handoff=7
  ProcVersionSignature: Ubuntu 5.19.0-35.36~22.04.1-generic 5.19.17
  RelatedPackageVersions:
   linux-restricted-modules-5.19.0-35-generic N/A
   linux-backports-modules-5.19.0-35-generic  N/A
   linux-firmware                             20220329.git681281e4-0ubuntu3.10
  Tags:  wayland-session jammy
  Uname: Linux 5.19.0-35-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/23/2021
  dmi.bios.release: 2.33
  dmi.bios.vendor: LENOVO
  dmi.bios.version: ALCN33WW(V2.10)
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0Q55724 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad S340-14IWL
  dmi.ec.firmware.release: 2.33
  dmi.modalias: 
dmi:bvnLENOVO:bvrALCN33WW(V2.10):bd06/23/2021:br2.33:efr2.33:svnLENOVO:pn81N7:pvrLenovoIdeaPadS340-14IWL:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55724WIN:cvnLENOVO:ct10:cvrLenovoIdeaPadS340-14IWL:skuLENOVO_MT_81N7_BU_idea_FM_IdeaPadS340-14IWL:
  dmi.product.family: IdeaPad S340-14IWL
  dmi.product.name: 81N7
  dmi.product.sku: LENOVO_MT_81N7_BU_idea_FM_IdeaPad S340-14IWL
  dmi.product.version: Lenovo IdeaPad S340-14IWL
  dmi.sys.vendor: LENOVO

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