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Hi everybody.
Please forgive my English, not my native language.
I've been getting headaches for a long time now, trying to make the Realtek RTL8822BE wifi adapter work on my Lenovo Ideapad S340 laptop.
Things are frequently changing kernel-wise, with regressions and all, and solutions that used to work before, did not work anymore.
Not being able to find any relevant info on how to remedy this situation, i forced myself to buy a linux compatible usb-wifi adapter, so i could still get internet connection on my machine (which comes with no ethernet port).
Relevant info below :
$ dmesg | grep rtw
[ 5.449798] rtw_8822be 0000:02:00.0: Firmware version 27.2.0, H2C version 13
[ 5.593615] rtw_8822be 0000:02:00.0 wlp2s0: renamed from wlan0
[ 6.132151] WARNING: CPU: 1 PID: 346 at drivers/net/wireless/realtek/rtw88/rtw8822b.c:802 rtw8822b_config_trx_mode.constprop.0+0x9d6/0x9e0 [rtw88_8822b]
[ 6.132152] Modules linked in: snd_hda_codec_hdmi cmac snd_sof_pci x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_byt algif_hash coretemp snd_sof_intel_ipc snd_sof_intel_hda_common kvm_intel snd_soc_hdac_hda algif_skcipher af_alg snd_sof_xtensa_dsp snd_sof_intel_hda snd_hda_codec_realtek bnep snd_sof snd_hda_codec_generic rtw88_8822be ledtrig_audio rtw88_8822b hid_logitech_hidpp snd_soc_skl rtw88_pci btusb mousedev snd_soc_sst_ipc kvm snd_soc_sst_dsp btrtl rtw88_core btbcm btintel joydev snd_hda_ext_core bluetooth snd_soc_acpi_intel_match snd_soc_acpi hid_multitouch snd_soc_core i915 mei_hdcp hid_logitech_dj mac80211 snd_compress ac97_bus snd_pcm_dmaengine irqbypass crct10dif_pclmul crc32_pclmul snd_hda_intel snd_intel_dspcfg hid_generic intel_rapl_msr ghash_clmulni_intel snd_hda_codec intel_wmi_thunderbolt wmi_bmof ecdh_generic ecc snd_hda_core aesni_intel snd_hwdep uvcvideo crypto_simd videobuf2_vmalloc snd_pcm videobuf2_memops cryptd glue_helper cfg80211 videobuf2_v4l2 i2c_algo_bit
[ 6.132210] RIP: 0010:rtw8822b_config_trx_mode.constprop.0+0x9d6/0x9e0 [rtw88_8822b]
[ 6.132226] rtw8822b_phy_set_param+0x1ba/0x4d0 [rtw88_8822b]
[ 6.132232] rtw_core_start+0xbe/0x160 [rtw88_core]
[ 6.132236] rtw_ops_start+0x24/0x40 [rtw88_core]
[ 6.135464] rtw_8822be 0000:02:00.0: failed to send h2c command
[ 6.138556] rtw_8822be 0000:02:00.0: failed to send h2c command
[ 6.138564] rtw_8822be 0000:02:00.0: start vif c0:b5:d7:71:79:25 on port 0
[ 6.146106] rtw_8822be 0000:02:00.0: failed to send h2c command
[ 6.149204] rtw_8822be 0000:02:00.0: failed to send h2c command
[ 8.910150] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 8.910444] WARNING: CPU: 0 PID: 346 at drivers/net/wireless/realtek/rtw88/pci.c:1171 rtw_dbi_read8.constprop.0+0xa0/0xb0 [rtw88_pci]
[ 8.910445] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat snd_hda_codec_hdmi cmac snd_sof_pci x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_byt algif_hash coretemp snd_sof_intel_ipc snd_sof_intel_hda_common kvm_intel snd_soc_hdac_hda algif_skcipher af_alg snd_sof_xtensa_dsp snd_sof_intel_hda snd_hda_codec_realtek bnep snd_sof snd_hda_codec_generic rtw88_8822be ledtrig_audio rtw88_8822b hid_logitech_hidpp snd_soc_skl rtw88_pci btusb mousedev snd_soc_sst_ipc kvm snd_soc_sst_dsp btrtl rtw88_core btbcm btintel joydev snd_hda_ext_core bluetooth snd_soc_acpi_intel_match snd_soc_acpi hid_multitouch snd_soc_core i915 mei_hdcp hid_logitech_dj mac80211 snd_compress ac97_bus snd_pcm_dmaengine irqbypass crct10dif_pclmul crc32_pclmul snd_hda_intel snd_intel_dspcfg hid_generic intel_rapl_msr ghash_clmulni_intel snd_hda_codec intel_wmi_thunderbolt wmi_bmof ecdh_generic ecc snd_hda_core aesni_intel snd_hwdep uvcvideo crypto_simd videobuf2_vmalloc snd_pcm videobuf2_memops cryptd glue_helper
[ 8.910506] RIP: 0010:rtw_dbi_read8.constprop.0+0xa0/0xb0 [rtw88_pci]
[ 8.910522] rtw_pci_link_ps+0x57/0x90 [rtw88_pci]
[ 8.910528] rtw_enter_ips+0x38/0x40 [rtw88_core]
[ 8.910532] rtw_ops_config+0xb8/0xc0 [rtw88_core]
[ 8.910651] rtw_8822be 0000:02:00.0: failed to read ASPM, ret=-5
[ 8.910913] rtw_8822be 0000:02:00.0: stop vif c0:b5:d7:71:79:25 on port 0
[ 11.126724] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 13.248933] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 13.248938] rtw_8822be 0000:02:00.0: mac power on failed
[ 13.248939] rtw_8822be 0000:02:00.0: failed to power on mac
[ 15.636684] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 15.636687] rtw_8822be 0000:02:00.0: mac power on failed
[ 15.636689] rtw_8822be 0000:02:00.0: failed to power on mac
[ 17.775724] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 17.775729] rtw_8822be 0000:02:00.0: mac power on failed
[ 17.775730] rtw_8822be 0000:02:00.0: failed to power on mac
[ 30.132932] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 30.132937] rtw_8822be 0000:02:00.0: mac power on failed
[ 30.132939] rtw_8822be 0000:02:00.0: failed to power on mac
[ 32.254203] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 32.254209] rtw_8822be 0000:02:00.0: mac power on failed
[ 32.254210] rtw_8822be 0000:02:00.0: failed to power on mac
[ 45.129709] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 45.129715] rtw_8822be 0000:02:00.0: mac power on failed
[ 45.129716] rtw_8822be 0000:02:00.0: failed to power on mac
[ 47.251121] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 47.251126] rtw_8822be 0000:02:00.0: mac power on failed
[ 47.251127] rtw_8822be 0000:02:00.0: failed to power on mac
[ 59.132077] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 59.132083] rtw_8822be 0000:02:00.0: mac power on failed
[ 59.132084] rtw_8822be 0000:02:00.0: failed to power on mac
[ 61.253866] rtw_8822be 0000:02:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[ 61.253872] rtw_8822be 0000:02:00.0: mac power on failed
[ 61.253873] rtw_8822be 0000:02:00.0: failed to power on mac
......................................................................................................
$ sudo lspci -v -k
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter (rev ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: rtw_8822be
Kernel modules: rtw88_8822be
.........................................................
$ sudo modinfo rtw88_8822be
filename: /lib/modules/5.9.6-arch1-1/kernel/drivers/net/wireless/realtek/rtw88/rtw88_8822be.ko.xz
license: Dual BSD/GPL
description: Realtek 802.11ac wireless 8822be driver
author: Realtek Corporation
srcversion: 8AF9BF6108F6001E463F5CF
alias: pci:v000010ECd0000B822sv*sd*bc*sc*i*
depends: rtw88_pci,rtw88_8822b
retpoline: Y
intree: Y
name: rtw88_8822be
vermagic: 5.9.6-arch1-1 SMP preempt mod_unload
sig_id: PKCS#7
signer: Build time autogenerated kernel key
sig_key: 51:6D:FC:75:0F:A1:BE:48:53:7C:52:2B:C4:16:85:7B:5F:35:DD:2B
sig_hashalgo: sha512
signature: 02:70:C7:AB:88:42:68:41:D6:31:6C:9D:0B:61:74:94:74:F3:6A:92:
27:4A:F8:A2:BF:B4:3A:BC:36:E4:12:77:88:61:F4:17:C6:76:57:A5:
71:92:EC:67:B2:FA:35:32:A7:33:23:CF:C9:67:FD:E7:20:A6:0F:49:
8D:46:5D:88:E2:E4:F8:D4:3D:E6:B1:89:1A:24:08:6F:90:24:B5:D1:
50:64:FA:C6:81:9E:57:91:75:5D:FE:38:94:74:A3:D3:8C:54:BF:A5:
9C:41:B3:41:48:10:33:EC:FD:E0:5E:32:45:0A:86:1F:9A:68:37:08:
66:38:B4:AF:3E:8D:EB:EC:B4:E4:08:6A:38:5C:C7:80:2A:12:82:5C:
67:F1:CB:08:4D:A6:97:4B:6F:10:C8:23:A7:53:B3:F5:D6:93:2B:F0:
64:EC:35:8C:A5:AD:68:A9:E3:7C:7C:1E:EC:B5:6D:2E:C4:82:4F:45:
33:9C:88:19:E1:25:D5:41:E5:DD:18:E7:DF:53:F0:96:00:42:7D:D6:
A3:ED:47:02:6E:95:16:86:57:3F:D9:3E:35:92:8B:D0:AF:56:BB:1D:
77:AF:98:9D:13:DE:13:DA:D7:E8:C2:01:70:01:89:30:11:16:5B:B6:
A6:4D:52:56:2C:59:BC:11:C7:98:74:98:7E:C4:4C:5A:35:03:B0:92:
76:53:18:65:44:F1:A1:62:4E:33:6D:98:A7:9E:26:FA:C7:4F:DE:9B:
49:48:06:9A:CE:0A:4C:64:99:3C:F5:CC:E9:29:01:E3:06:3A:CC:8E:
A2:29:D4:F5:4C:6C:5E:F5:00:49:0C:BB:82:BA:6D:6A:03:BC:EB:05:
CD:E5:FB:42:02:E3:4B:E2:28:65:E3:85:6D:C2:22:E4:0A:B8:FF:55:
A0:EB:06:91:0B:2F:06:30:16:0F:64:63:13:6F:4B:88:E1:FB:98:B2:
E0:DB:9A:00:8B:57:49:9C:28:D2:96:32:6F:58:F0:5D:4E:EA:F4:F2:
73:29:07:63:35:FF:02:77:CB:D7:BD:48:B5:00:38:83:33:19:73:FD:
04:C6:6B:83:44:53:5D:DB:E5:F7:79:63:7A:4A:90:FB:44:5C:83:DC:
00:2C:42:06:32:C1:1B:F8:92:5B:BC:E2:76:55:5B:4C:4C:99:06:06:
70:2C:BD:EF:D9:00:85:0E:36:F2:83:BB:46:4E:6D:5A:28:53:99:33:
7B:90:64:A3:E9:8D:D7:BB:25:3A:3D:D7:E9:5E:98:E8:52:3A:61:68:
5C:52:48:50:74:D3:12:56:94:5F:31:6D:BA:1B:3A:FB:A5:F8:D5:6B:
CA:F6:F6:E0:83:7E:28:8D:42:B7:A9:00
............................................................................
$ sudo systool -m rtw88_8822be -av
Module = "rtw88_8822be"
Attributes:
coresize = "16384"
initsize = "0"
initstate = "live"
refcnt = "0"
srcversion = "8AF9BF6108F6001E463F5CF"
taint = ""
uevent = <store method only>
Sections:
.data = "0xffffffffc0a0e000"
.exit.text = "0xffffffffc0a0c000"
.gnu.linkonce.this_module= "0xffffffffc0a0e140"
.init.text = "0xffffffffc0993000"
.note.Linux = "0xffffffffc0a0d024"
.note.gnu.build-id = "0xffffffffc0a0d000"
.orc_unwind = "0xffffffffc0a0d0b0"
.orc_unwind_ip = "0xffffffffc0a0d0a0"
.rodata = "0xffffffffc0a0d040"
.rodata.str1.1 = "0xffffffffc0a0d080"
.strtab = "0xffffffffc0994420"
.symtab = "0xffffffffc0994000"
__mcount_loc = "0xffffffffc0a0d098"
...................................................................Recently, and while still searching for a solution, i came across this : https://access.redhat.com/documentation … guide/aspm
So, FINALLY, i made it work by permanently setting (via bootloader) either one of the parameters below, to the kernel cmdline:
pcie_aspm.policy=powersavepcie_aspm.policy=performanceSeems that the default policy is to have it read/set directly from the bios, but obviously that doesn't always work.
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