![英特尔公司：双频无线-AC3168NGW [stone peak] wifi 在 ubuntu 上无法使用](https://linux22.com/image/935507/%E8%8B%B1%E7%89%B9%E5%B0%94%E5%85%AC%E5%8F%B8%EF%BC%9A%E5%8F%8C%E9%A2%91%E6%97%A0%E7%BA%BF-AC3168NGW%20%5Bstone%20peak%5D%20wifi%20%E5%9C%A8%20ubuntu%20%E4%B8%8A%E6%97%A0%E6%B3%95%E4%BD%BF%E7%94%A8.png)
我已经安装了 ubuntu 20.04LTS。我的笔记本电脑是 HP probook 645 g4，amd ryzen7。这台笔记本电脑使用英特尔无线 ac3168NGW 来使用 wifi。安装 Ubuntu 后，软件和更新中的“附加驱动程序”显示英特尔公司：双频无线-AC3168NGW [stone peak]-此设备不工作。并给我一个继续使用手动安装的驱动程序的选项。我尝试了 2 种常见的解决方案。wifi 连接后突然断开连接。断开连接后，在系统设置的 wifi 部分，显示未找到 wifi 适配器。并且 wifi 开关按钮消失了。这真的很痛苦。我给出了以下 2 个解决方案。这些都不能完美地工作。如果有人给我一个完美的解决方案，
我的尝试-1：
wget https://wireless.wiki.kernel.org/_media/en/users/drivers/iwlwifi-3168-ucode-22.361476.0.tgz
tar xvf iwlwifi-3168-ucode-22.361476.0.tgz
cd iwlwifi-3168-ucode-22.361476.0
sudo cp iwlwifi* /lib/firmware
sudo modprobe -v iwlwifi
我的尝试-2：
sudo apt update
sudo apt install linux-generic-hwe-20.04
并且..我没有使用任何双启动。我已经在整个硬盘上安装了 ubuntu。“dmesg | grep iwl”结果如下。
santo@santo-HP-ProBook-645-G4:~$ dmesg | grep iwl
[ 8.185397] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 8.529421] iwlwifi 0000:02:00.0: loaded firmware version 29.1654887522.0 3168-29.ucode op_mode iwlmvm
[ 8.531171] iwlwifi 0000:02:00.0: Direct firmware load for iwl-debug-yoyo.bin failed with error -2
[ 9.741272] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 3168, REV=0x220
[ 9.764147] iwlwifi 0000:02:00.0: base HW address: f4:d1:08:30:92:29
[ 9.794546] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 9.800278] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[ 124.117970] iwlwifi 0000:02:00.0: regular scan timed out
[ 124.118166] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 124.118350] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 124.118354] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
[ 124.118356] iwlwifi 0000:02:00.0: Loaded firmware version: 29.1654887522.0 3168-29.ucode
[ 124.118360] iwlwifi 0000:02:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 124.118362] iwlwifi 0000:02:00.0: 0x00000230 | trm_hw_status0
[ 124.118364] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 124.118366] iwlwifi 0000:02:00.0: 0x00043D6C | branchlink2
[ 124.118368] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink1
[ 124.118370] iwlwifi 0000:02:00.0: 0x000008A0 | interruptlink2
[ 124.118372] iwlwifi 0000:02:00.0: 0x00000000 | data1
[ 124.118374] iwlwifi 0000:02:00.0: 0x00000080 | data2
[ 124.118375] iwlwifi 0000:02:00.0: 0x07030000 | data3
[ 124.118377] iwlwifi 0000:02:00.0: 0x63802E09 | beacon time
[ 124.118379] iwlwifi 0000:02:00.0: 0xB33781F6 | tsf low
[ 124.118381] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[ 124.118382] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 124.118384] iwlwifi 0000:02:00.0: 0x05F0D44C | time gp2
[ 124.118386] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
[ 124.118388] iwlwifi 0000:02:00.0: 0x0000001D | uCode version major
[ 124.118389] iwlwifi 0000:02:00.0: 0x62A39462 | uCode version minor
[ 124.118391] iwlwifi 0000:02:00.0: 0x00000220 | hw version
[ 124.118393] iwlwifi 0000:02:00.0: 0x00C89200 | board version
[ 124.118395] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
[ 124.118396] iwlwifi 0000:02:00.0: 0x24022002 | isr0
[ 124.118398] iwlwifi 0000:02:00.0: 0x00800000 | isr1
[ 124.118400] iwlwifi 0000:02:00.0: 0x0000000A | isr2
[ 124.118402] iwlwifi 0000:02:00.0: 0x00417CC0 | isr3
[ 124.118403] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[ 124.118405] iwlwifi 0000:02:00.0: 0x00F1014E | last cmd Id
[ 124.118407] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[ 124.118408] iwlwifi 0000:02:00.0: 0x00000080 | l2p_control
[ 124.118410] iwlwifi 0000:02:00.0: 0x00010030 | l2p_duration
[ 124.118412] iwlwifi 0000:02:00.0: 0x0000003F | l2p_mhvalid
[ 124.118414] iwlwifi 0000:02:00.0: 0x000000CE | l2p_addr_match
[ 124.118415] iwlwifi 0000:02:00.0: 0x00000007 | lmpm_pmg_sel
[ 124.118417] iwlwifi 0000:02:00.0: 0x16070617 | timestamp
[ 124.118419] iwlwifi 0000:02:00.0: 0x0034B0C0 | flow_handler
[ 124.118530] iwlwifi 0000:02:00.0: Fseq Registers:
[ 124.118579] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ERROR_CODE
[ 124.118624] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION
[ 124.118670] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[ 124.118717] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_OTP_VERSION
[ 124.118763] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
[ 124.118809] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ALIVE_TOKEN
[ 124.118855] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVI_ID
[ 124.118902] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVR_ID
[ 124.118948] iwlwifi 0000:02:00.0: 0x00000000 | CNVI_AUX_MISC_CHIP
[ 124.118995] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_AUX_MISC_CHIP
[ 124.119041] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 124.119086] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 124.119140] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
[ 144.592938] iwlwifi 0000:02:00.0: regular scan timed out
[ 144.593260] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 144.593493] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 144.593497] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
[ 144.593501] iwlwifi 0000:02:00.0: Loaded firmware version: 29.1654887522.0 3168-29.ucode
[ 144.593505] iwlwifi 0000:02:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 144.593508] iwlwifi 0000:02:00.0: 0x000002F3 | trm_hw_status0
[ 144.593511] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 144.593513] iwlwifi 0000:02:00.0: 0x00043D6C | branchlink2
[ 144.593516] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink1
[ 144.593519] iwlwifi 0000:02:00.0: 0x000066FC | interruptlink2
[ 144.593521] iwlwifi 0000:02:00.0: 0x00000000 | data1
[ 144.593524] iwlwifi 0000:02:00.0: 0x00000080 | data2
[ 144.593526] iwlwifi 0000:02:00.0: 0x03030000 | data3
[ 144.593529] iwlwifi 0000:02:00.0: 0x89005E5D | beacon time
[ 144.593531] iwlwifi 0000:02:00.0: 0xB47035A2 | tsf low
[ 144.593534] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[ 144.593536] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 144.593538] iwlwifi 0000:02:00.0: 0x0135685A | time gp2
[ 144.593541] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
[ 144.593543] iwlwifi 0000:02:00.0: 0x0000001D | uCode version major
[ 144.593546] iwlwifi 0000:02:00.0: 0x62A39462 | uCode version minor
[ 144.593548] iwlwifi 0000:02:00.0: 0x00000220 | hw version
[ 144.593550] iwlwifi 0000:02:00.0: 0x00C89200 | board version
[ 144.593552] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
[ 144.593555] iwlwifi 0000:02:00.0: 0x02F62000 | isr0
[ 144.593557] iwlwifi 0000:02:00.0: 0x01004000 | isr1
[ 144.593559] iwlwifi 0000:02:00.0: 0x0000000A | isr2
[ 144.593561] iwlwifi 0000:02:00.0: 0x00417C80 | isr3
[ 144.593563] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[ 144.593566] iwlwifi 0000:02:00.0: 0x0B80001C | last cmd Id
[ 144.593568] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[ 144.593570] iwlwifi 0000:02:00.0: 0x00000080 | l2p_control
[ 144.593572] iwlwifi 0000:02:00.0: 0x00001C22 | l2p_duration
[ 144.593574] iwlwifi 0000:02:00.0: 0x0000003F | l2p_mhvalid
[ 144.593576] iwlwifi 0000:02:00.0: 0x000000CE | l2p_addr_match
[ 144.593579] iwlwifi 0000:02:00.0: 0x00000007 | lmpm_pmg_sel
[ 144.593581] iwlwifi 0000:02:00.0: 0x16070617 | timestamp
[ 144.593583] iwlwifi 0000:02:00.0: 0x0034C8D8 | flow_handler
[ 144.593695] iwlwifi 0000:02:00.0: Fseq Registers:
[ 144.593741] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ERROR_CODE
[ 144.593787] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION
[ 144.593833] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[ 144.593881] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_OTP_VERSION
[ 144.593928] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
[ 144.593974] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ALIVE_TOKEN
[ 144.594022] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVI_ID
[ 144.594067] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVR_ID
[ 144.594114] iwlwifi 0000:02:00.0: 0x00000000 | CNVI_AUX_MISC_CHIP
[ 144.594161] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_AUX_MISC_CHIP
[ 144.594207] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 144.594254] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 144.594308] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
[ 165.042760] iwlwifi 0000:02:00.0: regular scan timed out
[ 165.042955] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 165.043201] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 165.043204] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
[ 165.043207] iwlwifi 0000:02:00.0: Loaded firmware version: 29.1654887522.0 3168-29.ucode
[ 165.043211] iwlwifi 0000:02:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 165.043214] iwlwifi 0000:02:00.0: 0x000002B0 | trm_hw_status0
[ 165.043216] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 165.043219] iwlwifi 0000:02:00.0: 0x00043D6C | branchlink2
[ 165.043221] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink1
[ 165.043223] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink2
[ 165.043225] iwlwifi 0000:02:00.0: 0x00000000 | data1
[ 165.043227] iwlwifi 0000:02:00.0: 0x00000080 | data2
[ 165.043230] iwlwifi 0000:02:00.0: 0x07030000 | data3
[ 165.043232] iwlwifi 0000:02:00.0: 0x89002905 | beacon time
[ 165.043234] iwlwifi 0000:02:00.0: 0xB5A886FA | tsf low
[ 165.043235] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[ 165.043237] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 165.043239] iwlwifi 0000:02:00.0: 0x0134F25F | time gp2
[ 165.043241] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
[ 165.043243] iwlwifi 0000:02:00.0: 0x0000001D | uCode version major
[ 165.043245] iwlwifi 0000:02:00.0: 0x62A39462 | uCode version minor
[ 165.043246] iwlwifi 0000:02:00.0: 0x00000220 | hw version
[ 165.043248] iwlwifi 0000:02:00.0: 0x00C89200 | board version
[ 165.043250] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
[ 165.043252] iwlwifi 0000:02:00.0: 0x00022002 | isr0
[ 165.043254] iwlwifi 0000:02:00.0: 0x00000000 | isr1
[ 165.043255] iwlwifi 0000:02:00.0: 0x0000000A | isr2
[ 165.043257] iwlwifi 0000:02:00.0: 0x00417CC0 | isr3
[ 165.043259] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[ 165.043261] iwlwifi 0000:02:00.0: 0x0B8F001C | last cmd Id
[ 165.043263] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[ 165.043264] iwlwifi 0000:02:00.0: 0x00000080 | l2p_control
[ 165.043266] iwlwifi 0000:02:00.0: 0x00010020 | l2p_duration
[ 165.043268] iwlwifi 0000:02:00.0: 0x0000003F | l2p_mhvalid
[ 165.043270] iwlwifi 0000:02:00.0: 0x000000CE | l2p_addr_match
[ 165.043272] iwlwifi 0000:02:00.0: 0x00000005 | lmpm_pmg_sel
[ 165.043273] iwlwifi 0000:02:00.0: 0x16070617 | timestamp
[ 165.043275] iwlwifi 0000:02:00.0: 0x0034C8D0 | flow_handler
[ 165.043387] iwlwifi 0000:02:00.0: Fseq Registers:
[ 165.043434] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ERROR_CODE
[ 165.043481] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION
[ 165.043527] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[ 165.043574] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_OTP_VERSION
[ 165.043620] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
[ 165.043666] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ALIVE_TOKEN
[ 165.043712] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVI_ID
[ 165.043758] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVR_ID
[ 165.043804] iwlwifi 0000:02:00.0: 0x00000000 | CNVI_AUX_MISC_CHIP
[ 165.043851] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_AUX_MISC_CHIP
[ 165.043898] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 165.043944] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 165.043996] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
[ 185.501784] iwlwifi 0000:02:00.0: regular scan timed out
[ 185.502006] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 185.502248] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 185.502251] iwlwifi 0000:02:00.0: Status: 0x00000040, count: 6
[ 185.502254] iwlwifi 0000:02:00.0: Loaded firmware version: 29.1654887522.0 3168-29.ucode
[ 185.502258] iwlwifi 0000:02:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN
[ 185.502261] iwlwifi 0000:02:00.0: 0x000002A0 | trm_hw_status0
[ 185.502263] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1
[ 185.502266] iwlwifi 0000:02:00.0: 0x00043D6C | branchlink2
[ 185.502268] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink1
[ 185.502270] iwlwifi 0000:02:00.0: 0x0004AFA2 | interruptlink2
[ 185.502272] iwlwifi 0000:02:00.0: 0x00000000 | data1
[ 185.502274] iwlwifi 0000:02:00.0: 0x00000080 | data2
[ 185.502277] iwlwifi 0000:02:00.0: 0x07030000 | data3
[ 185.502279] iwlwifi 0000:02:00.0: 0x86803393 | beacon time
[ 185.502281] iwlwifi 0000:02:00.0: 0xB6E0FC6B | tsf low
[ 185.502283] iwlwifi 0000:02:00.0: 0x00000000 | tsf hi
[ 185.502285] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 185.502287] iwlwifi 0000:02:00.0: 0x013539A4 | time gp2
[ 185.502289] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type
[ 185.502291] iwlwifi 0000:02:00.0: 0x0000001D | uCode version major
[ 185.502294] iwlwifi 0000:02:00.0: 0x62A39462 | uCode version minor
[ 185.502296] iwlwifi 0000:02:00.0: 0x00000220 | hw version
[ 185.502298] iwlwifi 0000:02:00.0: 0x00C89200 | board version
[ 185.502300] iwlwifi 0000:02:00.0: 0x0000001C | hcmd
[ 185.502302] iwlwifi 0000:02:00.0: 0x00022002 | isr0
[ 185.502304] iwlwifi 0000:02:00.0: 0x00000000 | isr1
[ 185.502306] iwlwifi 0000:02:00.0: 0x00000002 | isr2
[ 185.502308] iwlwifi 0000:02:00.0: 0x0041C4C0 | isr3
[ 185.502310] iwlwifi 0000:02:00.0: 0x00000000 | isr4
[ 185.502312] iwlwifi 0000:02:00.0: 0x863F009D | last cmd Id
[ 185.502315] iwlwifi 0000:02:00.0: 0x00000000 | wait_event
[ 185.502317] iwlwifi 0000:02:00.0: 0x000000D4 | l2p_control
[ 185.502319] iwlwifi 0000:02:00.0: 0x00018020 | l2p_duration
[ 185.502321] iwlwifi 0000:02:00.0: 0x00000007 | l2p_mhvalid
[ 185.502323] iwlwifi 0000:02:00.0: 0x00000081 | l2p_addr_match
[ 185.502325] iwlwifi 0000:02:00.0: 0x00000005 | lmpm_pmg_sel
[ 185.502327] iwlwifi 0000:02:00.0: 0x16070617 | timestamp
[ 185.502329] iwlwifi 0000:02:00.0: 0x0034C8E0 | flow_handler
[ 185.502442] iwlwifi 0000:02:00.0: Fseq Registers:
[ 185.502488] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ERROR_CODE
[ 185.502535] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION
[ 185.502581] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVIO_INIT_VERSION
[ 185.502629] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_OTP_VERSION
[ 185.502676] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_CONTENT_VERSION
[ 185.502723] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_ALIVE_TOKEN
[ 185.502768] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVI_ID
[ 185.502814] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_CNVR_ID
[ 185.502860] iwlwifi 0000:02:00.0: 0x00000000 | CNVI_AUX_MISC_CHIP
[ 185.502907] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_AUX_MISC_CHIP
[ 185.502953] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 185.502999] iwlwifi 0000:02:00.0: 0x00000000 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 185.503054] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired.
答案1
在您的编辑中，我们看到许多重复的内容：
iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
这里有一个关于固件崩溃和英特尔 3168 的很长的错误报告：https://bugzilla.kernel.org/show_bug.cgi?id=204151这表明该问题已在内核版本 5.5 及更高版本中得到修复。我相信 Ubuntu 20.04 LTS 使用的是内核版本 5.4。
我建议您下载 Ubuntu 20.10 的 iso，它目前使用内核版本 5.8。接下来，尝试实时会话，也称为“尝试 Ubuntu”。
你的无线网络工作正常吗？消息日志中有什么线索吗？
dmesg | grep iwl
所有其他功能（例如电子邮件、网页浏览器等）是否按预期工作？如果是，我建议您安装它。
编辑：请检查固件文件的完整性：
md5sum /usr/lib/firmware/iwlwifi-3168-29.ucode
我们希望你看到：35ba5d5a8bdd6ff453106d268eda957e
如果没有，请执行以下操作：
sudo apt install –reinstall linux-firmware
重启并检查：
dmesg | grep iwl
有改善吗？
如果不是，请重命名 -29 版本，以便系统加载 -27：
cd /usr/lib/firmware/
sudo mv iwlwifi-3168-29.ucode iwlwifi-3168-29.bak
重启。有什么改善吗？如果没有，请恢复更改并重启：
cd /usr/lib/firmware/
sudo mv iwlwifi-3168-29.bak iwlwifi-3168-29.ucode