我的以太网直到昨天才恢复工作。第二天我打开系统，系统显示“电缆已拔出”。我目前使用的是 Ubuntu 18.04，但我也尝试过旧的 14.04，但也没有以太网连接。虽然 Windows 8.1 可以通过以太网连接到互联网。我尝试了 2 条不同的以太网电缆，它们通过不同的端口连接到网络。
是否配置
ens5f5: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 48:5b:39:5f:f7:87 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 34
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 515 bytes 77002 (77.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 515 bytes 77002 (77.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wls1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.43.19 netmask 255.255.255.0 broadcast 192.168.43.255
inet6 fe80::2ae2:dad5:808d:38ae prefixlen 64 scopeid 0x20<link>
ether 1c:4b:d6:ce:5a:27 txqueuelen 1000 (Ethernet)
RX packets 3172 bytes 1975584 (1.9 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3283 bytes 826575 (826.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
消息 | grep eth
[ 1.919044] jme: JMicron JMC2XX ethernet driver version 1.0.8
[ 1.925793] jme 0000:05:00.5 eth0: JMC250 Gigabit Ethernet chiprev:23 pcirev:3 macaddr:48:5b:39:5f:f7:87
[ 1.959338] jme 0000:05:00.5 ens5f5: renamed from eth0
修改
Module Size Used by
rfcomm 77824 4
ccm 20480 9
bnep 20480 2
nls_iso8859_1 16384 1
arc4 16384 2
uvcvideo 86016 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 40960 2 videobuf2_v4l2,uvcvideo
videodev 184320 3 videobuf2_core,videobuf2_v4l2,uvcvideo
media 40960 2 videodev,uvcvideo
ath9k 151552 0
ath9k_common 36864 1 ath9k
ath9k_hw 471040 2 ath9k_common,ath9k
ath 28672 3 ath9k_common,ath9k,ath9k_hw
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 212992 0
kvm 598016 1 kvm_intel
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
pcbc 16384 0
aesni_intel 188416 6
snd_hda_codec_conexant 24576 1
snd_hda_codec_generic 73728 1 snd_hda_codec_conexant
snd_hda_codec_hdmi 49152 1
snd_hda_intel 40960 4
snd_seq_midi 16384 0
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 98304 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
lpc_ich 24576 0
joydev 24576 0
mac80211 778240 1 ath9k
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
intel_cstate 20480 0
snd_timer 32768 2 snd_seq,snd_pcm
input_leds 16384 0
serio_raw 16384 0
cfg80211 622592 4 ath9k_common,ath9k,ath,mac80211
intel_ips 20480 0
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 548864 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
jmb38x_ms 20480 0
memstick 16384 1 jmb38x_ms
ecdh_generic 24576 1 bluetooth
asus_laptop 32768 0
sparse_keymap 16384 1 asus_laptop
input_polldev 16384 1 asus_laptop
mei_me 40960 0
snd 81920 19 snd_hda_codec_generic,snd_seq,snd_hda_codec_conexant,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm,snd_rawmidi
mac_hid 16384 0
mei 90112 1 mei_me
soundcore 16384 1 snd
shpchp 36864 0
sch_fq_codel 20480 2
parport_pc 36864 0
ppdev 20480 0
lp 20480 0
parport 49152 3 parport_pc,lp,ppdev
ip_tables 28672 0
x_tables 40960 1 ip_tables
autofs4 40960 2
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 usbhid,hid_generic
radeon 1470464 14
i2c_algo_bit 16384 1 radeon
ttm 106496 1 radeon
drm_kms_helper 172032 1 radeon
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
ahci 40960 3
drm 401408 7 drm_kms_helper,radeon,ttm
libahci 32768 1 ahci
jme 40960 0
sdhci_pci 32768 0
psmouse 147456 0
mii 16384 1 jme
sdhci 49152 1 sdhci_pci
video 45056 1 asus_laptop
lspci-nnk
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 12)
Subsystem: ASUSTeK Computer Inc. Core Processor DRAM Controller [1043:1c77]
00:01.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express x16 Root Port [8086:0045] (rev 12)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset HECI Controller [1043:1c77]
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1a.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [1043:1c77]
Kernel driver in use: ehci-pci
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset High Definition Audio [1043:1643]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 06)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 [8086:3b44] (rev 06)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 [8086:3b46] (rev 06)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.5 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 [8086:3b4c] (rev 06)
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [1043:1c77]
Kernel driver in use: ehci-pci
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev a6)
00:1f.0 ISA bridge [0601]: Intel Corporation HM55 Chipset LPC Interface Controller [8086:3b09] (rev 06)
Subsystem: ASUSTeK Computer Inc. HM55 Chipset LPC Interface Controller [1043:1c77]
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller [8086:3b29] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset 4 port SATA AHCI Controller [1043:1c77]
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset SMBus Controller [1043:1c77]
Kernel modules: i2c_i801
00:1f.6 Signal processing controller [1180]: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem [8086:3b32] (rev 06)
Subsystem: ASUSTeK Computer Inc. 5 Series/3400 Series Chipset Thermal Subsystem [1043:1c77]
Kernel driver in use: intel ips
Kernel modules: intel_ips
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV710/M92 [Mobility Radeon HD 4530/4570/545v] [1002:9553]
Subsystem: ASUSTeK Computer Inc. RV710/M92 [Mobility Radeon HD 4530/4570/545v] [1043:1c42]
Kernel driver in use: radeon
Kernel modules: radeon
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] RV710/730 HDMI Audio [Radeon HD 4000 series] [1002:aa38]
Subsystem: ASUSTeK Computer Inc. RV710/730 HDMI Audio [Radeon HD 4000 series] [1043:aa38]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
03:00.0 Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
Subsystem: AzureWave AW-NE785 / AW-NE785H 802.11bgn Wireless Full or Half-size Mini PCIe Card [1a3b:1089]
Kernel driver in use: ath9k
Kernel modules: ath9k
05:00.0 System peripheral [0880]: JMicron Technology Corp. SD/MMC Host Controller [197b:2382] (rev 80)
Subsystem: ASUSTeK Computer Inc. SD/MMC Host Controller [1043:1a07]
Kernel driver in use: sdhci-pci
Kernel modules: sdhci_pci
05:00.2 SD Host controller [0805]: JMicron Technology Corp. Standard SD Host Controller [197b:2381] (rev 80)
Subsystem: ASUSTeK Computer Inc. Standard SD Host Controller [1043:1a07]
Kernel modules: sdhci_pci
05:00.3 System peripheral [0880]: JMicron Technology Corp. MS Host Controller [197b:2383] (rev 80)
Subsystem: ASUSTeK Computer Inc. MS Host Controller [1043:1a07]
Kernel driver in use: jmb38x_ms
Kernel modules: jmb38x_ms
05:00.4 System peripheral [0880]: JMicron Technology Corp. xD Host Controller [197b:2384] (rev 80)
Subsystem: ASUSTeK Computer Inc. xD Host Controller [1043:1a07]
05:00.5 Ethernet controller [0200]: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 03)
Subsystem: ASUSTeK Computer Inc. JMC250 PCI Express Gigabit Ethernet Controller [1043:1905]
Kernel driver in use: jme
Kernel modules: jme
ff:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:2c62] (rev 02)
Subsystem: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:8086]
ff:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:2d01] (rev 02)
Subsystem: Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:8086]
ff:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0 [8086:2d10] (rev 02)
Subsystem: Intel Corporation Core Processor QPI Link 0 [8086:8086]
ff:02.1 Host bridge [0600]: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 [8086:2d11] (rev 02)
Subsystem: Intel Corporation 1st Generation Core i3/5/7 Processor QPI Physical 0 [8086:8086]
ff:02.2 Host bridge [0600]: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:2d12] (rev 02)
Subsystem: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:8086]
ff:02.3 Host bridge [0600]: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:2d13] (rev 02)
Subsystem: Intel Corporation 1st Generation Core i3/5/7 Processor Reserved [8086:8086]
答案1
我关闭了笔记本电脑并取出电池，15 分钟后它就开始工作了。
遇到过类似的问题，台式电脑上的 USB 无法使用。关机并切断所有电源后，USB 又恢复正常了。