我的内核版本是5.3.0-26-generic
输出rfkill list all
1: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
输出sudo lshw -C network
*-network
description: Network controller
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
version: 3a
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=iwlwifi latency=0
resources: irq:132 memory:ddb00000-ddb01fff
*-network:0
description: Ethernet interface
physical id: 2
logical name: docker0
serial: 02:42:a6:94:b2:78
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3
firmware=N/A ip=172.17.0.1 link=no multicast=yes
*-network:1
description: Ethernet interface
physical id: 3
bus info: usb@1:1
logical name: enp0s20f0u1
serial: ee:f5:b6:ae:05:81
capabilities: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-
2005 firmware=RNDIS device ip=192.168.42.254 link=yes multicast=yes
输出lspci -knn | grep Net -A2
02:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
Subsystem: Intel Corporation Wireless 8260 [8086:0050]
Kernel driver in use: iwlwifi
输出dmesg | grep wifi
[ 2.838370] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 2.885952] iwlwifi 0000:02:00.0: Found debug destination: EXTERNAL_DRAM
[ 2.885954] iwlwifi 0000:02:00.0: Found debug configuration: 0
[ 2.886505] iwlwifi 0000:02:00.0: loaded firmware version 36.77d01142.0 op_mode iwlmvm
[ 2.985347] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[ 2.992104] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM
[ 2.992490] iwlwifi 0000:02:00.0: Allocated 0x00400000 bytes for firmware monitor.
[ 3.059470] iwlwifi 0000:02:00.0: base HW address: e4:a4:71:03:41:b1
[ 3.060066] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 3.060194] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 3.060196] iwlwifi 0000:02:00.0: Status: 0x00000080, count: 6
[ 3.060197] iwlwifi 0000:02:00.0: Loaded firmware version: 36.77d01142.0
[ 3.060198] iwlwifi 0000:02:00.0: 0x00001392 | ADVANCED_SYSASSERT
[ 3.060199] iwlwifi 0000:02:00.0: 0x000002F1 | trm_hw_status0
[ 3.060200] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 3.060201] iwlwifi 0000:02:00.0: 0x00012536 | branchlink2
[ 3.060202] iwlwifi 0000:02:00.0: 0x0001C2FE | interruptlink1
[ 3.060203] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
[ 3.060203] iwlwifi 0000:02:00.0: 0x0000010D | data1
[ 3.060204] iwlwifi 0000:02:00.0: 0x00000000 | data2
[ 3.060205] iwlwifi 0000:02:00.0: 0xDEADBEEF | data3
[ 3.060206] iwlwifi 0000:02:00.0: 0x00000000 | beacon time
[ 3.060207] iwlwifi 0000:02:00.0: 0x00001819 | tsf low
[ 3.060208] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[ 3.060209] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 3.060210] iwlwifi 0000:02:00.0: 0x0000181A | time gp2
[ 3.060210] iwlwifi 0000:02:00.0: 0x00000009 | uCode revision type
[ 3.060211] iwlwifi 0000:02:00.0: 0x00000024 | uCode version major
[ 3.060212] iwlwifi 0000:02:00.0: 0x77D01142 | uCode version minor
[ 3.060213] iwlwifi 0000:02:00.0: 0x00000201 | hw version
[ 3.060214] iwlwifi 0000:02:00.0: 0x18489008 | board version
[ 3.060215] iwlwifi 0000:02:00.0: 0x0010016A | hcmd
[ 3.060216] iwlwifi 0000:02:00.0: 0x00122080 | isr0
[ 3.060216] iwlwifi 0000:02:00.0: 0x00000000 | isr1
[ 3.060217] iwlwifi 0000:02:00.0: 0x28201802 | isr2
[ 3.060218] iwlwifi 0000:02:00.0: 0x004000C0 | isr3
[ 3.060219] iwlwifi 0000:02:00.0: 0x00000001 | isr4
[ 3.060220] iwlwifi 0000:02:00.0: 0x0010016A | last cmd Id
[ 3.060221] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[ 3.060221] iwlwifi 0000:02:00.0: 0x00004FD6 | l2p_control
[ 3.060222] iwlwifi 0000:02:00.0: 0x00000820 | l2p_duration
[ 3.060223] iwlwifi 0000:02:00.0: 0x00000000 | l2p_mhvalid
[ 3.060224] iwlwifi 0000:02:00.0: 0x00000000 | l2p_addr_match
[ 3.060225] iwlwifi 0000:02:00.0: 0x0000000D | lmpm_pmg_sel
[ 3.060226] iwlwifi 0000:02:00.0: 0x08081421 | timestamp
[ 3.060227] iwlwifi 0000:02:00.0: 0x00000818 | flow_handler
[ 3.060287] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 3.060287] iwlwifi 0000:02:00.0: Status: 0x00000080, count: 7
[ 3.060288] iwlwifi 0000:02:00.0: 0x00000070 | NMI_INTERRUPT_LMAC_FATAL
[ 3.060289] iwlwifi 0000:02:00.0: 0x00000000 | umac branchlink1
[ 3.060292] iwlwifi 0000:02:00.0: 0xC0086B38 | umac branchlink2
[ 3.060293] iwlwifi 0000:02:00.0: 0xC008D6CA | umac interruptlink1
[ 3.060294] iwlwifi 0000:02:00.0: 0xC008D678 | umac interruptlink2
[ 3.060294] iwlwifi 0000:02:00.0: 0x00000800 | umac data1
[ 3.060295] iwlwifi 0000:02:00.0: 0xC008D678 | umac data2
[ 3.060296] iwlwifi 0000:02:00.0: 0xDEADBEEF | umac data3
[ 3.060297] iwlwifi 0000:02:00.0: 0x00000024 | umac major
[ 3.060298] iwlwifi 0000:02:00.0: 0x77D01142 | umac minor
[ 3.060299] iwlwifi 0000:02:00.0: 0xC0886DEC | frame pointer
[ 3.060299] iwlwifi 0000:02:00.0: 0xC0886DEC | stack pointer
[ 3.060300] iwlwifi 0000:02:00.0: 0x0010016A | last host cmd
[ 3.060301] iwlwifi 0000:02:00.0: 0x00000000 | isr status reg
[ 3.060318] iwlwifi 0000:02:00.0: Fseq Registers:
[ 3.060323] iwlwifi 0000:02:00.0: 0xF9C99D80 | FSEQ_ERROR_CODE
[ 3.060327] iwlwifi 0000:02:00.0: 0xC465164C | FSEQ_TOP_INIT_VERSION
[ 3.060332] iwlwifi 0000:02:00.0: 0x0F490C92 | FSEQ_CNVIO_INIT_VERSION
[ 3.060336] iwlwifi 0000:02:00.0: 0x0000A056 | FSEQ_OTP_VERSION
[ 3.060341] iwlwifi 0000:02:00.0: 0xE3725170 | FSEQ_TOP_CONTENT_VERSION
[ 3.060345] iwlwifi 0000:02:00.0: 0x90B22E2C | FSEQ_ALIVE_TOKEN
[ 3.060350] iwlwifi 0000:02:00.0: 0x5419E086 | FSEQ_CNVI_ID
[ 3.060354] iwlwifi 0000:02:00.0: 0xF6BD255C | FSEQ_CNVR_ID
[ 3.060359] iwlwifi 0000:02:00.0: 0x03000000 | CNVI_AUX_MISC_CHIP
[ 3.060366] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_AUX_MISC_CHIP
[ 3.060374] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 3.060381] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 3.060388] iwlwifi 0000:02:00.0: Failed to run INIT calibrations: -5
[ 3.060390] iwlwifi 0000:02:00.0: Collecting data: trigger 16 fired.
[ 3.307895] iwlwifi 0000:02:00.0: Firmware not running - cannot dump error
[ 3.320476] iwlwifi 0000:02:00.0: Failed to run INIT ucode: -5
答案1
这是一个似乎已经修复的错误。https://bugs.launchpad.net/ubuntu/+bug/1808389
通过其他方式连接到互联网：有线或电话网络共享，然后运行以下命令更新您的系统：
sudo apt update && sudo apt upgrade
重新启动并检查 Wi-Fi。
答案2
我处理过类似的问题。试试这个：
在 UEFI（BIOS）设置中禁用安全启动
重新安装 Linux 固件
sudo apt install linux-firmware在 grub 中添加参数 pcie_aspm=off ：
sudo gedit /etc/default/grub添加
pcie_aspm=off到GRUB_CMDLINE_LINUX_DEFAULT重启
它对我有用，祝你好运！