Wifi connectivity issues on fresh-ish Fedora 37 install with Intel AX200 wifi card.

komackino · 02-07-2023, 09:35 AM

Hi, not sure if this is the right place, but here goes.

Two weeks ago I made a fresh install of Fedora 37 on my Dell XPS 13 7390 with an Intel AX200 Wifi card. Everything worked great at first(first week), but I started to lose the wifi connection. Sometimes I can just reconnect; sometimes I can go a couple of hours with working wifi, at other times it just won't connect. Rebooting often(not always) solves it for a while.

No other devices have Wifi issues and the problem persists if I try to connect to other networks. So I'm fairly sure this is an isolated problem on my laptop. Up until two weeks ago I was on Ubuntu 20.04 and had no issues.

I tried downgrading the iwlax2xx-firmware driver to the septmeber 2022 release, and it "kind of worked" for a couple of days, but now it is the same again(currently on iwlax2xx-firmware-20230117-146.fc37.noarch).

I also tried disabling wifi power management, but no luck.

My dmesg shows errors related to wifi, but I can't interpret it very well. See line 543 in particular.
https://pastebin.com/8PvteNQT

Any help is greatly appreciated! I work from home and this is my main computer.

colorpurple21859 · 02-07-2023, 10:24 AM

maybe one of these solutions:
https://askubuntu.com/questions/1392...ubuntu-20-04-3
https://bbs.archlinux.org/viewtopic....51800#p1951800

komackino · 02-07-2023, 09:14 PM

Hi, thanks for answering.

Today I even reinstalled Ubuntu 22.04, thinking it was a Fedora/Red Hat issue, but to my great dismay, the problem is the same.

I have tried everything I've found online, including the links you provided.

Adding

Code:

options iwlwifi 11n_disable=1

to /etc/modprobe.d/iwlwifi.conf does work as a workaround for now; wifi is stable and the "Microcode SW error" are gone from dmesg. However the connection is obviously a lot slower. At least I can do my job .

I still get a WARNING related to iwlwifi in dmesg:

Code:

[    3.922496] ------------[ cut here ]------------
[    3.922498] WARNING: CPU: 1 PID: 418 at drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c:697 iwl_init_he_hw_capab+0x2f7/0x310 [iwlwifi]
[    3.922525] Modules linked in: intel_tcc_cooling snd_hwdep x86_pkg_temp_thermal intel_powerclamp coretemp snd_pcm dell_laptop snd_seq_midi snd_seq_midi_event joydev kvm_intel kvm dell_smm_hwmon i915(+) crct10dif_pclmul snd_rawmidi ghash_clmulni_intel nls_iso8859_1 input_leds snd_seq iwlmvm(+) aesni_intel ttm crypto_simd dell_wmi snd_seq_device ledtrig_audio drm_kms_helper cryptd snd_timer mac80211 cec dell_smbios dcdbas rapl snd rc_core dell_wmi_sysman(+) intel_cstate libarc4 serio_raw firmware_attributes_class dell_wmi_descriptor wmi_bmof intel_wmi_thunderbolt soundcore i2c_algo_bit iwlwifi processor_thermal_device_pci_legacy fb_sys_fops processor_thermal_device syscopyarea processor_thermal_rfim mei_me ucsi_acpi(+) processor_thermal_mbox typec_ucsi sysfillrect processor_thermal_rapl cfg80211 sysimgblt intel_rapl_common mei hid_multitouch intel_soc_dts_iosf intel_pch_thermal mac_hid typec int3403_thermal int340x_thermal_zone acpi_pad int3400_thermal intel_hid acpi_thermal_rel acpi_tad
[    3.922572]  sparse_keymap sch_fq_codel msr parport_pc ppdev lp parport drm ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 rtsx_pci_sdmmc hid_generic crc32_pclmul psmouse nvme i2c_i801 i2c_smbus xhci_pci i2c_hid_acpi intel_lpss_pci thunderbolt nvme_core i2c_hid intel_lpss rtsx_pci idma64 xhci_pci_renesas wmi hid video pinctrl_cannonlake
[    3.922598] CPU: 1 PID: 418 Comm: modprobe Not tainted 5.15.0-58-generic #64-Ubuntu
[    3.922601] Hardware name: Dell Inc. XPS 13 7390/0F3VKC, BIOS 1.18.0 09/06/2022
[    3.922602] RIP: 0010:iwl_init_he_hw_capab+0x2f7/0x310 [iwlwifi]
[    3.922619] Code: 44 89 28 0f b7 4b 5c 83 c2 01 48 83 c0 50 39 ca 7c ed e9 74 fd ff ff 48 8d 86 38 02 00 00 e9 95 fd ff ff 0f 0b e9 61 fd ff ff <0f> 0b e9 20 ff ff ff 0f 0b e9 47 ff ff ff e8 86 44 9e eb 66 0f 1f
[    3.922621] RSP: 0000:ffffa16201a57978 EFLAGS: 00010246
[    3.922624] RAX: 0000000000000000 RBX: ffff918207dd6168 RCX: 0000000000000002
[    3.922628] RDX: 0000000000000001 RSI: ffff918207dd6000 RDI: 0000000000000003
[    3.922629] RBP: ffffa16201a579d8 R08: 0000000000000003 R09: 0000000000000003
[    3.922630] R10: 0000000000000003 R11: 0000000000000002 R12: ffff918203818028
[    3.922632] R13: ffff918207dd6000 R14: 0000000000000003 R15: 0000000000000003
[    3.922633] FS:  00007f77da499c40(0000) GS:ffff91857e840000(0000) knlGS:0000000000000000
[    3.922635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.922636] CR2: 00007f2b59b49fab CR3: 0000000111c8c006 CR4: 00000000003706e0
[    3.922637] Call Trace:
[    3.922639]  <TASK>
[    3.922642]  iwl_init_sbands+0x252/0x2c0 [iwlwifi]
[    3.922661]  iwl_get_nvm+0x23c/0x2e0 [iwlwifi]
[    3.922678]  iwl_run_unified_mvm_ucode+0x200/0x240 [iwlmvm]
[    3.922701]  ? iwl_run_unified_mvm_ucode+0x200/0x240 [iwlmvm]
[    3.922718]  ? 0xffffffffc0cf7000
[    3.922721]  ? thermal_zone_device_enable+0x13/0x20
[    3.922726]  iwl_run_init_mvm_ucode+0x27/0x30 [iwlmvm]
[    3.922743]  iwl_op_mode_mvm_start+0x8c9/0xbb0 [iwlmvm]
[    3.922761]  ? __d_instantiate+0x39/0xf0
[    3.922766]  _iwl_op_mode_start+0x75/0xe0 [iwlwifi]
[    3.922783]  iwl_opmode_register+0x6d/0xe0 [iwlwifi]
[    3.923035]  ? 0xffffffffc0d83000
[    3.923037]  iwl_mvm_init+0x3a/0x1000 [iwlmvm]
[    3.923057]  ? 0xffffffffc0d83000
[    3.923059]  do_one_initcall+0x46/0x1e0
[    3.923066]  ? kmem_cache_alloc_trace+0x19e/0x2e0
[    3.923070]  do_init_module+0x52/0x260
[    3.923073]  load_module+0xb2b/0xbc0
[    3.923075]  __do_sys_finit_module+0xbf/0x120
[    3.923077]  __x64_sys_finit_module+0x18/0x20
[    3.923079]  do_syscall_64+0x59/0xc0
[    3.923085]  ? exit_to_user_mode_prepare+0x37/0xb0
[    3.923089]  ? syscall_exit_to_user_mode+0x27/0x50
[    3.923105]  ? __x64_sys_newfstatat+0x1c/0x30
[    3.923108]  ? do_syscall_64+0x69/0xc0
[    3.923109]  ? do_syscall_64+0x69/0xc0
[    3.923111]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[    3.923115] RIP: 0033:0x7f77da5b9a3d
[    3.923117] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c3 a3 0f 00 f7 d8 64 89 01 48
[    3.923119] RSP: 002b:00007ffe8364d3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    3.923121] RAX: ffffffffffffffda RBX: 0000557452361070 RCX: 00007f77da5b9a3d
[    3.923122] RDX: 0000000000000000 RSI: 00005574516f2cd2 RDI: 0000000000000002
[    3.923124] RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000002
[    3.923125] R10: 0000000000000002 R11: 0000000000000246 R12: 00005574516f2cd2
[    3.923126] R13: 00005574523611a0 R14: 00005574523595b0 R15: 000055745235a330
[    3.923128]  </TASK>
[    3.923129] ---[ end trace a702ef1dafc59bcb ]---

komackino · 02-08-2023, 07:19 PM

I've now been messing with this for two full days.

Setting "options iwlwifi 11n_disable=1" in /etc/modprobe.d/iwlwifi.conf, and confining wifi to 20Mhz works, but that's really only a temporary solution.

I tried everything I've found online, and there is a lot of related issues. I even reinstalled Ubuntu 22.04. Nothing seem to work.

komackino · 02-14-2023, 06:30 PM

Just got a system update(Fedora 37) with new iwlwifi firmware, iwlax2xx-firmware-20230210-147.fc37.noarch, and it seems to work now. No warning and no microcode errors in dmesg! Yeay!

komackino · 02-15-2023, 01:34 PM

Scratch that. Microcode errors are back. so I had to do the "options iwlwifi 11n_disable=1" again :/

komackino · 02-27-2023, 10:47 AM

Does anyone know anything more about this or where to turn for guidance?