不定期找不到Intel N 2230无线网卡

来碗基本面 2021-02-15 02:00:53

机器： Lenovo ThinkPad S440 (2014年出厂），也叫ThinkPad S3。
操作系统：原装Windows 7，改装成Linux Mint 19、Manjaro，内核5.x
相关硬件：Intel Wireless-N 2230无线网卡

问题：

在每次冷启动后，network manager会有1/3的概率显示没有无线网卡。用lspci也看不到该无线网卡。dmesg里看不到有error消息。

如果冷启动后显示有无线网卡，则无线网卡使用一切正常。

在改装成Linux之前，Windows 7下使用完全正常，从没出现过无线网卡以概率失踪的情况。



$ uname -a

Linux ThinkPad-S3 5.0.0-32-generic #34~18.04.2-Ubuntu SMP Thu Oct 10 10:36:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux



$lspci

03:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)

$ modinfo iwlwifi

filename:       /lib/modules/5.0.0-32-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko

license:        GPL

author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>

description:    Intel(R) Wireless WiFi driver for Linux

firmware:       iwlwifi-100-5.ucode

firmware:       iwlwifi-1000-5.ucode

firmware:       iwlwifi-135-6.ucode

firmware:       iwlwifi-105-6.ucode

firmware:       iwlwifi-2030-6.ucode

firmware:       iwlwifi-2000-6.ucode

firmware:       iwlwifi-5150-2.ucode

firmware:       iwlwifi-5000-5.ucode

firmware:       iwlwifi-6000g2b-6.ucode

firmware:       iwlwifi-6000g2a-6.ucode

firmware:       iwlwifi-6050-5.ucode

firmware:       iwlwifi-6000-6.ucode

firmware:       iwlwifi-7265D-29.ucode

firmware:       iwlwifi-7265-17.ucode

firmware:       iwlwifi-3168-29.ucode

firmware:       iwlwifi-3160-17.ucode

firmware:       iwlwifi-7260-17.ucode

firmware:       iwlwifi-8265-36.ucode

firmware:       iwlwifi-8000C-36.ucode

firmware:       iwlwifi-9260-th-b0-jf-b0-43.ucode

firmware:       iwlwifi-9260-th-a0-jf-a0-43.ucode

firmware:       iwlwifi-9000-pu-a0-jf-b0-43.ucode

firmware:       iwlwifi-9000-pu-b0-jf-b0-43.ucode

firmware:       iwlwifi-9000-pu-a0-jf-a0-43.ucode

firmware:       iwlwifi-Qu-b0-jf-b0-43.ucode

firmware:       iwlwifi-su-z0-43.ucode

firmware:       iwlwifi-QuQnj-a0-hr-a0-43.ucode

firmware:       iwlwifi-QuQnj-a0-jf-b0-43.ucode

firmware:       iwlwifi-QuQnj-b0-hr-b0-43.ucode

firmware:       iwlwifi-Qu-b0-hr-b0-43.ucode

firmware:       iwlwifi-QuQnj-f0-hr-a0-43.ucode

firmware:       iwlwifi-Qu-a0-jf-b0-43.ucode

firmware:       iwlwifi-Qu-a0-hr-a0-43.ucode

srcversion:     73136E4A47DE531CDC14864

depends:        cfg80211

retpoline:      Y

intree:         Y

name:           iwlwifi

vermagic:       5.0.0-32-generic SMP mod_unload

signat:         PKCS#7

signer:         

sig_key:        

sig_hashalgo:   md4

parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)

parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)

parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, 4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0) (int)

parm:           fw_restart:restart firmware in case of error (default true) (bool)

parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)

parm:           nvm_file:NVM file name (charp)

parm:           d0i3_disable:disable d0i3 functionality (default: Y) (bool)

parm:           lar_disable:disable LAR functionality (default: N) (bool)

parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)

parm:           enable_ini:Enable debug INI TLV FW debug infrastructure (default: 0 (bool)

parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)

parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)

parm:           power_save:enable WiFi power management (default: disable) (bool)

parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)

parm:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)

parm:           d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint)

parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)

parm:           remove_when_gone:Remove dev from PCIe bus if it is deemed inaccessible (default: false) (bool)

parm:           disable_11ax:Disable HE capabilities (default: false) (bool)