我买了一台新笔记本电脑联想 S540并尝试使用 Windows 10 和 Ubuntu 18.04 进行双启动。双启动很顺利，在我更新 Ubuntu 系统后，我的 wifi 图标从右上角的菜单中消失了，在设置中，它显示“未找到 wifi 适配器”
我已经尝试了网上发布的一些方法，但到目前为止都没有用。
lspci -knn | grep Net -A3；rfkill 列表
00:14.3 Network controller [0280]: Intel Corporation Device [8086:02f0]
Subsystem: Intel Corporation Device [8086:0034]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi, wl
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
消息 |查找
[ 13.689174] iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version: 43.2.23.17
[ 13.689176] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[ 13.689176] iwlwifi 0000:00:14.3: Found debug configuration: 0
[ 13.689312] iwlwifi 0000:00:14.3: loaded firmware version 48.13675109.0 op_mode iwlmvm
[ 14.968566] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560, REV=0x354
[ 14.975120] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM
[ 14.975404] iwlwifi 0000:00:14.3: Allocated 0x00400000 bytes for firmware monitor.
[ 15.997193] iwlwifi 0000:00:14.3: Collecting data: trigger 15 fired.
[ 15.997299] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[ 15.997334] iwlwifi 0000:00:14.3: Status: 0x00000000, count: -288669377
[ 15.997335] iwlwifi 0000:00:14.3: Loaded firmware version: 48.13675109.0
[ 15.997337] iwlwifi 0000:00:14.3: 0xB71F968D | ADVANCED_SYSASSERT
[ 15.997337] iwlwifi 0000:00:14.3: 0x3381040B | trm_hw_status0
[ 15.997338] iwlwifi 0000:00:14.3: 0x96318858 | trm_hw_status1
[ 15.997339] iwlwifi 0000:00:14.3: 0x4B7695B8 | branchlink2
[ 15.997340] iwlwifi 0000:00:14.3: 0x0EC5D74B | interruptlink1
[ 15.997340] iwlwifi 0000:00:14.3: 0x24F3781B | interruptlink2
[ 15.997341] iwlwifi 0000:00:14.3: 0x45C27942 | data1
[ 15.997342] iwlwifi 0000:00:14.3: 0xBED7FD4A | data2
[ 15.997342] iwlwifi 0000:00:14.3: 0xACB7D7AE | data3
[ 15.997343] iwlwifi 0000:00:14.3: 0xBBD9DEF8 | beacon time
[ 15.997344] iwlwifi 0000:00:14.3: 0x10005892 | tsf low
[ 15.997345] iwlwifi 0000:00:14.3: 0xEBFDFD6E | tsf hi
[ 15.997345] iwlwifi 0000:00:14.3: 0x4427F2FF | time gp1
[ 15.997346] iwlwifi 0000:00:14.3: 0xBF08186D | time gp2
[ 15.997347] iwlwifi 0000:00:14.3: 0xE083784A | uCode revision type
[ 15.997348] iwlwifi 0000:00:14.3: 0x7FCEEDBF | uCode version major
[ 15.997348] iwlwifi 0000:00:14.3: 0x194E69AB | uCode version minor
[ 15.997349] iwlwifi 0000:00:14.3: 0xEBE01001 | hw version
[ 15.997350] iwlwifi 0000:00:14.3: 0x82AA091E | board version
[ 15.997350] iwlwifi 0000:00:14.3: 0xAC414028 | hcmd
[ 15.997351] iwlwifi 0000:00:14.3: 0xF9477BC5 | isr0
[ 15.997352] iwlwifi 0000:00:14.3: 0x56D95F01 | isr1
[ 15.997353] iwlwifi 0000:00:14.3: 0xA440F2D5 | isr2
[ 15.997353] iwlwifi 0000:00:14.3: 0x1676709A | isr3
[ 15.997354] iwlwifi 0000:00:14.3: 0xEEE47AF2 | isr4
[ 15.997355] iwlwifi 0000:00:14.3: 0x6C57755C | last cmd Id
[ 15.997355] iwlwifi 0000:00:14.3: 0x3197F314 | wait_event
[ 15.997356] iwlwifi 0000:00:14.3: 0x9898FBC2 | l2p_control
[ 15.997357] iwlwifi 0000:00:14.3: 0x5FB6BBA3 | l2p_duration
[ 15.997357] iwlwifi 0000:00:14.3: 0x72BA6AAF | l2p_mhvalid
[ 15.997358] iwlwifi 0000:00:14.3: 0x1925B308 | l2p_addr_match
[ 15.997359] iwlwifi 0000:00:14.3: 0xF6C84A9D | lmpm_pmg_sel
[ 15.997359] iwlwifi 0000:00:14.3: 0xFB58FAE6 | timestamp
[ 15.997360] iwlwifi 0000:00:14.3: 0x3D7AF30E | flow_handler
[ 15.997392] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
[ 15.997393] iwlwifi 0000:00:14.3: Status: 0x00000000, count: 7
[ 15.997393] iwlwifi 0000:00:14.3: 0x201013F1 | ADVANCED_SYSASSERT
[ 15.997394] iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1
[ 15.997395] iwlwifi 0000:00:14.3: 0xC008CF5C | umac branchlink2
[ 15.997396] iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink1
[ 15.997396] iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink2
[ 15.997397] iwlwifi 0000:00:14.3: 0x00000003 | umac data1
[ 15.997398] iwlwifi 0000:00:14.3: 0x20000302 | umac data2
[ 15.997398] iwlwifi 0000:00:14.3: 0x01300202 | umac data3
[ 15.997399] iwlwifi 0000:00:14.3: 0x00000030 | umac major
[ 15.997400] iwlwifi 0000:00:14.3: 0x13675109 | umac minor
[ 15.997401] iwlwifi 0000:00:14.3: 0x00005C9C | frame pointer
[ 15.997401] iwlwifi 0000:00:14.3: 0xC0887F58 | stack pointer
[ 15.997402] iwlwifi 0000:00:14.3: 0x00000000 | last host cmd
[ 15.997403] iwlwifi 0000:00:14.3: 0x00000000 | isr status reg
[ 15.997419] iwlwifi 0000:00:14.3: Fseq Registers:
[ 15.997421] iwlwifi 0000:00:14.3: 0x00000003 | FSEQ_ERROR_CODE
[ 15.997423] iwlwifi 0000:00:14.3: 0x00260000 | FSEQ_TOP_INIT_VERSION
[ 15.997426] iwlwifi 0000:00:14.3: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[ 15.997428] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION
[ 15.997430] iwlwifi 0000:00:14.3: 0x71047F37 | FSEQ_TOP_CONTENT_VERSION
[ 15.997432] iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN
[ 15.997435] iwlwifi 0000:00:14.3: 0x20000302 | FSEQ_CNVI_ID
[ 15.997437] iwlwifi 0000:00:14.3: 0x01300202 | FSEQ_CNVR_ID
[ 15.997439] iwlwifi 0000:00:14.3: 0x20000302 | CNVI_AUX_MISC_CHIP
[ 15.997443] iwlwifi 0000:00:14.3: 0x01300202 | CNVR_AUX_MISC_CHIP
[ 15.997448] iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 15.997482] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 15.997510] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x5c0f, CPU2 Status: 0x3
[ 15.997511] iwlwifi 0000:00:14.3: Failed to start RT ucode: -110
[ 15.997513] iwlwifi 0000:00:14.3: Firmware not running - cannot dump error
[ 16.009256] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -110
uname -a
Linux sandy 5.3.0-62-generic #56~18.04.1-Ubuntu SMP Wed Jun 24 16:17:03 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
dkms 状态
bcmwl, 6.30.223.271+bdcom, 5.3.0-62-generic, x86_64: installed
nvidia, 440.100, 5.3.0-62-generic, x86_64: installed