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#1 2020-03-02 15:05:20

Valentin Melot
Member
Registered: 2020-01-16
Posts: 4

[Solved] Wifi not working, iwlwifi Microcode SW error detected (bis)

Hello there,

I’ve been experiencing a very similar issue to cowboybebop’s (https://bbs.archlinux.org/viewtopic.php?id=252778) since I rebooted last time… except I’m now using kernel 5.5.7, and it was said in the previous topic that bug was fixed since 5.5.3.

I’ve unsuccessfully tried downgrading kernel to 5.5.1. I’ve also tried to downgrade my linux-firmware version.

According to lspci, my network controller is Intel Corporation Wireless 8260 (rev 3a). Intel distributes a firmware, and the provided iwlwifi-8000C-13.ucode is the same to my /usr/lib/firmware/iwlwifi-8000C-13.ucode.

My dmesg contains several messages like this :

[  142.642795] iwlwifi 0000:02:00.0: 0x00000800 | umac data1
[  142.642796] iwlwifi 0000:02:00.0: 0xC0080968 | umac data2
[  142.642797] iwlwifi 0000:02:00.0: 0xDEADBEEF | umac data3
[  142.642799] iwlwifi 0000:02:00.0: 0x00000024 | umac major
[  142.642800] iwlwifi 0000:02:00.0: 0x952D9FAA | umac minor
[  142.642801] iwlwifi 0000:02:00.0: 0xC0887F3C | frame pointer
[  142.642802] iwlwifi 0000:02:00.0: 0xC0887F3C | stack pointer
[  142.642803] iwlwifi 0000:02:00.0: 0x00260405 | last host cmd
[  142.642804] iwlwifi 0000:02:00.0: 0x00004008 | isr status reg
[  142.642951] iwlwifi 0000:02:00.0: Fseq Registers:
[  142.643000] iwlwifi 0000:02:00.0: 0x7CEDEDBB | FSEQ_ERROR_CODE
[  142.643049] iwlwifi 0000:02:00.0: 0xC0039E0C | FSEQ_TOP_INIT_VERSION
[  142.643098] iwlwifi 0000:02:00.0: 0x8011E068 | FSEQ_CNVIO_INIT_VERSION
[  142.643147] iwlwifi 0000:02:00.0: 0x0000A056 | FSEQ_OTP_VERSION
[  142.643196] iwlwifi 0000:02:00.0: 0xB39EDB1A | FSEQ_TOP_CONTENT_VERSION
[  142.643245] iwlwifi 0000:02:00.0: 0x46525A3F | FSEQ_ALIVE_TOKEN
[  142.643294] iwlwifi 0000:02:00.0: 0xA00A5D80 | FSEQ_CNVI_ID
[  142.643344] iwlwifi 0000:02:00.0: 0xBA1D6C85 | FSEQ_CNVR_ID
[  142.643393] iwlwifi 0000:02:00.0: 0x03000000 | CNVI_AUX_MISC_CHIP
[  142.643442] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP
[  142.643491] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[  142.643540] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[  142.643590] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
[  142.643594] ieee80211 phy140: Hardware restart was requested
[  142.643644] iwlwifi 0000:02:00.0: iwlwifi transaction failed, dumping registers
[  142.643646] iwlwifi 0000:02:00.0: iwlwifi device config registers:
[  142.643930] iwlwifi 0000:02:00.0: 00000000: 24f38086 00100406 0280003a 00000010 ef000004 00000000 00000000 00000000
[  142.643931] iwlwifi 0000:02:00.0: 00000020: 00000000 00000000 00000000 01108086 00000000 000000c8 00000000 000001ff
[  142.643933] iwlwifi 0000:02:00.0: 00000040: 00020010 10008ec0 00100c10 0045e811 10110142 00000000 00000000 00000000
[  142.643934] iwlwifi 0000:02:00.0: 00000060: 00000000 00080812 00000405 00000000 00010001 00000000 00000000 00000000
[  142.643935] iwlwifi 0000:02:00.0: 00000080: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.643936] iwlwifi 0000:02:00.0: 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.643937] iwlwifi 0000:02:00.0: 000000c0: 00000000 00000000 c823d001 0d000000 00814005 fee00318 00000000 00000000
[  142.643938] iwlwifi 0000:02:00.0: 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.643939] iwlwifi 0000:02:00.0: 00000100: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000
[  142.643940] iwlwifi 0000:02:00.0: 00000120: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.643941] iwlwifi 0000:02:00.0: 00000140: 14c10003 ffaf3241 28c63fff 15410018 10031003 0001001e 00481e1f 40a0000f
[  142.643942] iwlwifi 0000:02:00.0: iwlwifi device memory mapped registers:
[  142.644116] iwlwifi 0000:02:00.0: 00000000: 18489008 0000ff40 00000000 ba00008b 00000000 00000000 00000019 00000000
[  142.644118] iwlwifi 0000:02:00.0: 00000020: 00000000 08040005 00000201 d55555d5 d55555d5 d55555d5 80008040 041f0042
[  142.644170] iwlwifi 0000:02:00.0: iwlwifi device AER capability structure:
[  142.644193] iwlwifi 0000:02:00.0: 00000000: 14010001 00000000 00000000 00462031 00000000 00002000 00000000 00000000
[  142.644194] iwlwifi 0000:02:00.0: 00000020: 00000000 00000000 00000000
[  142.644195] iwlwifi 0000:02:00.0: iwlwifi parent port (0000:00:1c.6) config registers:
[  142.644290] iwlwifi 0000:00:1c.6: 00000000: 9d168086 00100407 060400f1 00810010 00000000 00000000 00020200 200000f0
[  142.644291] iwlwifi 0000:00:1c.6: 00000020: ef00ef00 0001fff1 00000000 00000000 00000000 00000040 00000000 001203ff
[  142.644292] iwlwifi 0000:00:1c.6: 00000040: 01428010 00008001 0010000f 07724c13 70110042 0054b200 01400000 00000008
[  142.644293] iwlwifi 0000:00:1c.6: 00000060: 00000000 00000837 00000400 0000000e 00010003 00000000 00000000 00000000
[  142.644294] iwlwifi 0000:00:1c.6: 00000080: 00019005 fee00258 00000000 00000000 0000a00d 15201043 00000000 00000000
[  142.644295] iwlwifi 0000:00:1c.6: 000000a0: c8030001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644296] iwlwifi 0000:00:1c.6: 000000c0: 00000000 00000000 00000000 00000000 07001001 00001842 099e0008 00000000
[  142.644297] iwlwifi 0000:00:1c.6: 000000e0: 00630300 00000000 00100016 00000000 00000150 4c000000 08410fb3 03000004
[  142.644298] iwlwifi 0000:00:1c.6: 00000100: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000
[  142.644299] iwlwifi 0000:00:1c.6: 00000120: 00000000 00000000 00000000 00000007 00000000 00000000 00000000 00000000
[  142.644300] iwlwifi 0000:00:1c.6: 00000140: 2001000d 0000000f 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644301] iwlwifi 0000:00:1c.6: 00000160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644302] iwlwifi 0000:00:1c.6: 00000180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644303] iwlwifi 0000:00:1c.6: 000001a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644304] iwlwifi 0000:00:1c.6: 000001c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644305] iwlwifi 0000:00:1c.6: 000001e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  142.644306] iwlwifi 0000:00:1c.6: 00000200: 2201001e 00b0281f 40a0280f
[  142.644313] iwlwifi 0000:02:00.0: iwlwifi root port (0000:00:1c.6) AER cap structure:
[  142.644323] iwlwifi 0000:00:1c.6: 00000000: 14010001 00000000 00010000 00060011 00000000 00002000 00000000 00000000
[  142.644323] iwlwifi 0000:00:1c.6: 00000020: 00000000 00000000 00000000 00000007 00000000 00000000
[  142.644325] iwlwifi 0000:02:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT
[  142.644327] CPU: 1 PID: 482 Comm: NetworkManager Not tainted 5.5.7-arch1-1 #1
[  142.644327] Hardware name: ASUSTeK COMPUTER INC. UX330UAK/UX330UAK, BIOS UX330UAK.305 05/02/2017
[  142.644328] Call Trace:
[  142.644336]  dump_stack+0x66/0x90
[  142.644349]  iwl_trans_pcie_send_hcmd+0x45d/0x470 [iwlwifi]
[  142.644353]  ? wait_woken+0x70/0x70
[  142.644360]  iwl_trans_send_cmd+0x51/0xb0 [iwlwifi]
[  142.644369]  iwl_mvm_send_cmd+0x1b/0x40 [iwlmvm]
[  142.644374]  iwl_mvm_send_cmd_pdu+0x51/0x70 [iwlmvm]
[  142.644379]  iwl_mvm_up+0x8f4/0x930 [iwlmvm]
[  142.644384]  __iwl_mvm_mac_start+0x26/0x1c0 [iwlmvm]
[  142.644389]  iwl_mvm_mac_start+0x24/0x40 [iwlmvm]
[  142.644409]  drv_start+0x3e/0x130 [mac80211]
[  142.644422]  ieee80211_do_open+0x20b/0x850 [mac80211]
[  142.644433]  ? ieee80211_check_concurrent_iface+0x14f/0x1c0 [mac80211]
[  142.644436]  __dev_open+0xe0/0x170
[  142.644438]  __dev_change_flags+0x188/0x1e0
[  142.644440]  dev_change_flags+0x21/0x60
[  142.644442]  do_setlink+0x78a/0xf90
[  142.644445]  ? update_blocked_averages+0x213/0x5c0
[  142.644447]  ? cpumask_next+0x16/0x20
[  142.644449]  ? __snmp6_fill_stats64.isra.0+0x66/0x110
[  142.644451]  __rtnl_newlink+0x5d1/0x9a0
[  142.644458]  rtnl_newlink+0x44/0x70
[  142.644459]  rtnetlink_rcv_msg+0x137/0x3c0
[  142.644461]  ? rtnl_calcit.isra.0+0x120/0x120
[  142.644463]  netlink_rcv_skb+0x75/0x140
[  142.644465]  netlink_unicast+0x199/0x240
[  142.644466]  netlink_sendmsg+0x243/0x480
[  142.644468]  sock_sendmsg+0x5e/0x60
[  142.644469]  ____sys_sendmsg+0x21b/0x290
[  142.644471]  ? copy_msghdr_from_user+0xe1/0x160
[  142.644473]  ___sys_sendmsg+0x9e/0xe0
[  142.644476]  ? addrconf_sysctl_forward+0x12b/0x270
[  142.644478]  __sys_sendmsg+0x81/0xd0
[  142.644481]  do_syscall_64+0x4e/0x150
[  142.644484]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  142.644485] RIP: 0033:0x7f506d9268bd
[  142.644487] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 0a 51 f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 3e 51 f8 ff 48
[  142.644488] RSP: 002b:00007ffd7b211e80 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[  142.644489] RAX: ffffffffffffffda RBX: 00000000000014f3 RCX: 00007f506d9268bd
[  142.644490] RDX: 0000000000000000 RSI: 00007ffd7b211ec0 RDI: 000000000000000c
[  142.644490] RBP: 000056138554c050 R08: 0000000000000000 R09: 0000000000000000
[  142.644490] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
[  142.644491] R13: 00007ffd7b212020 R14: 00007ffd7b21201c R15: 0000000000000000
[  142.644494] iwlwifi 0000:02:00.0: Firmware not running - cannot dump error
[  142.665477] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM
[  142.816871] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM
[  142.901380] iwlwifi 0000:02:00.0: FW already configured (0) - re-configuring
[  142.921215] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x82000000.
[  142.921475] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[  142.921479] iwlwifi 0000:02:00.0: Status: 0x00000050, count: 6
[  142.921482] iwlwifi 0000:02:00.0: Loaded firmware version: 36.952d9faa.0
[  142.921487] iwlwifi 0000:02:00.0: 0x00000038 | BAD_COMMAND                 
[  142.921489] iwlwifi 0000:02:00.0: 0x00A002F1 | trm_hw_status0
[  142.921492] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[  142.921494] iwlwifi 0000:02:00.0: 0x00024200 | branchlink2
[  142.921497] iwlwifi 0000:02:00.0: 0x00039872 | interruptlink1
[  142.921499] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
[  142.921502] iwlwifi 0000:02:00.0: 0x00250405 | data1
[  142.921504] iwlwifi 0000:02:00.0: 0x00000026 | data2
[  142.921506] iwlwifi 0000:02:00.0: 0x00000026 | data3
[  142.921509] iwlwifi 0000:02:00.0: 0x00000000 | beacon time
[  142.921511] iwlwifi 0000:02:00.0: 0x0000AD70 | tsf low
[  142.921514] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[  142.921516] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[  142.921519] iwlwifi 0000:02:00.0: 0x0000AD71 | time gp2
[  142.921521] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
[  142.921523] iwlwifi 0000:02:00.0: 0x00000024 | uCode version major
[  142.921526] iwlwifi 0000:02:00.0: 0x952D9FAA | uCode version minor
[  142.921528] iwlwifi 0000:02:00.0: 0x00000201 | hw version
[  142.921531] iwlwifi 0000:02:00.0: 0x18489008 | board version
[  142.921533] iwlwifi 0000:02:00.0: 0x00250405 | hcmd
[  142.921535] iwlwifi 0000:02:00.0: 0x00122080 | isr0
[  142.921538] iwlwifi 0000:02:00.0: 0x00000000 | isr1
[  142.921540] iwlwifi 0000:02:00.0: 0x28201802 | isr2
[  142.921542] iwlwifi 0000:02:00.0: 0x004000C0 | isr3
[  142.921545] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[  142.921547] iwlwifi 0000:02:00.0: 0x0024019F | last cmd Id
[  142.921549] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[  142.921552] iwlwifi 0000:02:00.0: 0x000047DD | l2p_control
[  142.921554] iwlwifi 0000:02:00.0: 0x00000820 | l2p_duration
[  142.921557] iwlwifi 0000:02:00.0: 0x00000000 | l2p_mhvalid
[  142.921559] iwlwifi 0000:02:00.0: 0x00000000 | l2p_addr_match
[  142.921561] iwlwifi 0000:02:00.0: 0x0000000D | lmpm_pmg_sel
[  142.921564] iwlwifi 0000:02:00.0: 0x20111544 | timestamp
[  142.921566] iwlwifi 0000:02:00.0: 0x00002030 | flow_handler
[  142.921759] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[  142.921762] iwlwifi 0000:02:00.0: Status: 0x00000050, count: 7
[  142.921765] iwlwifi 0000:02:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL
[  142.921767] iwlwifi 0000:02:00.0: 0x00000000 | umac branchlink1
[  142.921770] iwlwifi 0000:02:00.0: 0xC0086B3C | umac branchlink2
[  142.921772] iwlwifi 0000:02:00.0: 0xC0083D08 | umac interruptlink1
[  142.921774] iwlwifi 0000:02:00.0: 0xC0083D08 | umac interruptlink2
[  142.921777] iwlwifi 0000:02:00.0: 0x00000800 | umac data1
[  142.921779] iwlwifi 0000:02:00.0: 0xC0083D08 | umac data2
[  142.921782] iwlwifi 0000:02:00.0: 0xDEADBEEF | umac data3
[  142.921784] iwlwifi 0000:02:00.0: 0x00000024 | umac major
[  142.921786] iwlwifi 0000:02:00.0: 0x952D9FAA | umac minor
[  142.921788] iwlwifi 0000:02:00.0: 0xC088628C | frame pointer
[  142.921791] iwlwifi 0000:02:00.0: 0xC088628C | stack pointer
[  142.921793] iwlwifi 0000:02:00.0: 0x00250405 | last host cmd
[  142.921795] iwlwifi 0000:02:00.0: 0x00000000 | isr status reg
[  142.921943] iwlwifi 0000:02:00.0: Fseq Registers:
[  142.921998] iwlwifi 0000:02:00.0: 0x7CEDEDBB | FSEQ_ERROR_CODE
[  142.922053] iwlwifi 0000:02:00.0: 0xC0039E0C | FSEQ_TOP_INIT_VERSION
[  142.922108] iwlwifi 0000:02:00.0: 0x8011E068 | FSEQ_CNVIO_INIT_VERSION
[  142.922164] iwlwifi 0000:02:00.0: 0x0000A056 | FSEQ_OTP_VERSION
[  142.922221] iwlwifi 0000:02:00.0: 0xB39EDB1A | FSEQ_TOP_CONTENT_VERSION
[  142.922275] iwlwifi 0000:02:00.0: 0x46525A3F | FSEQ_ALIVE_TOKEN
[  142.922330] iwlwifi 0000:02:00.0: 0xA00A5D80 | FSEQ_CNVI_ID
[  142.922387] iwlwifi 0000:02:00.0: 0xBA1D6C85 | FSEQ_CNVR_ID
[  142.922443] iwlwifi 0000:02:00.0: 0x03000000 | CNVI_AUX_MISC_CHIP
[  142.922501] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP
[  142.922560] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[  142.922619] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[  142.922706] iwlwifi 0000:02:00.0: Firmware error during reconfiguration - reprobe!
[  142.922724] iwlwifi 0000:02:00.0: FW Error notification: type 0x00000000 cmd_id 0x05
[  142.922728] iwlwifi 0000:02:00.0: FW Error notification: seq 0x0025 service 0x00000005
[  142.922732] iwlwifi 0000:02:00.0: FW Error notification: timestamp 0x000000000000AD6D
[  142.922741] iwlwifi 0000:02:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT

I can post more if needed…

I would really appreciate your help. Thanks a lot in advance.

Last edited by Valentin Melot (2020-03-03 16:57:23)

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#2 2020-03-02 19:21:45

cowboybebop
Member
Registered: 2020-02-08
Posts: 6

Re: [Solved] Wifi not working, iwlwifi Microcode SW error detected (bis)

I don't think the bug has been fixed yet. It seems that it is still present in 5.5.7. See https://bugzilla.kernel.org/show_bug.cgi?id=206395. You can try using the patch posted by loqs on this page.

Last edited by cowboybebop (2020-03-02 19:26:32)

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#3 2020-03-02 21:21:07

Valentin Melot
Member
Registered: 2020-01-16
Posts: 4

Re: [Solved] Wifi not working, iwlwifi Microcode SW error detected (bis)

Hi, and thanks for you reply. I thought the bug was corrected in 5.5.3 as explained there.

I tried applying the patch as you did, but hunks are failing:

Setting version...                                                                                                                                      
Applying patch iwlwifi.patch...                                                                                                                                             
patching file drivers/net/wireless/intel/iwlwifi/fw/acpi.c
Hunk #2 FAILED at 245.
1 out of 2 hunks FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/fw/acpi.c.rej
patching file drivers/net/wireless/intel/iwlwifi/fw/acpi.h
Hunk #1 succeeded at 61 with fuzz 2.
Hunk #2 FAILED at 104.
Hunk #3 FAILED at 146.
Hunk #4 FAILED at 197.
3 out of 4 hunks FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/fw/acpi.h.rej
patching file drivers/net/wireless/intel/iwlwifi/fw/runtime.h
Hunk #1 succeeded at 65 with fuzz 2.
Hunk #2 FAILED at 203.
1 out of 2 hunks FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/fw/runtime.h.rej
patching file drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
Hunk #1 FAILED at 378.
1 out of 1 hunk FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c.rej
patching file drivers/net/wireless/intel/iwlwifi/mvm/fw.c
Hunk #1 FAILED at 678.
Hunk #2 FAILED at 694.
Hunk #3 FAILED at 772.
Hunk #4 FAILED at 797.
Hunk #5 FAILED at 818.
Hunk #6 FAILED at 841.
Hunk #7 FAILED at 883.
Hunk #8 succeeded at 900 with fuzz 1.
Hunk #9 FAILED at 918.
Hunk #10 FAILED at 977.
Hunk #11 FAILED at 989.
Hunk #12 FAILED at 1227.
11 out of 12 hunks FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/mvm/fw.c.rej
patching file drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
Hunk #1 FAILED at 188.
Hunk #2 succeeded at 779 with fuzz 1.
Hunk #3 FAILED at 1149.
2 out of 3 hunks FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/mvm/mvm.h.rej

I also tried this patch, also unsuccessfuly:

Setting version...                                                                                                                                      
Applying patch iwlwifi.patch...                                                                                                                                             
patching file drivers/net/wireless/intel/iwlwifi/mvm/fw.c                                                                                                                   
Hunk #1 FAILED at 1215.                                                                                                                                                     
1 out of 1 hunk FAILED -- saving rejects to file drivers/net/wireless/intel/iwlwifi/mvm/fw.c.rej

I presume these patches were designed for 5.5.2, not for 5.5.7.

Thanks for your help.


EDIT: downgrading to 5.4.15 fixes the bug. So should I keep using 5.4.15 until bug is fixed in a further version, or is it recommended to use latest stable version of the kernel and patch it?

Last edited by Valentin Melot (2020-03-02 21:30:17)

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#4 2020-03-03 16:33:18

cowboybebop
Member
Registered: 2020-02-08
Posts: 6

Re: [Solved] Wifi not working, iwlwifi Microcode SW error detected (bis)

Hi, Take a look at https://bugzilla.kernel.org/show_bug.cgi?id=206479. The patch listed in Comment 2 worked for me in 5.5.7. You can also check out the attachment listed on the same page.

I'm guessing that it is better to patch and upgrade than to stay on an older version. But I guess you could keep using the older version till something breaks down.

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#5 2020-03-03 16:57:35

Valentin Melot
Member
Registered: 2020-01-16
Posts: 4

Re: [Solved] Wifi not working, iwlwifi Microcode SW error detected (bis)

Alright, I mark as solved.
Thanks!

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