我有一台运行 Ubuntu 12.04 的 Dell Inspiron 5520 笔记本电脑。我的无线连接有问题。它可以工作一段时间，然后无缘无故地停止工作。这意味着 Firefox 停止加载页面，Skype 断开连接，投递箱断开连接。但无线网络仍然连接，信号非常好。重新激活互联网的唯一方法是插入局域网电缆或重新启动笔记本电脑。我谷歌了一下，发现其他人在 Ubuntu 上遇到了这台笔记本电脑无线连接问题，比如机器无法检测到无线连接，但这是一个不同的问题。以下是输出lspci -vv
00:00.0 Host bridge: Intel Corporation Ivy Bridge DRAM Controller (rev 09)
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation Ivy Bridge Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device 0569
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 44
Region 0: Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) (prog-if 30 [XHCI])
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 41
Region 0: Memory at c0600000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04)
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 45
Region 0: Memory at c0614000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei
Kernel modules: mei
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at c0619000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 46
Region 0: Memory at c0610000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00002000-00002fff
Prefetchable memory behind bridge: 00000000c0400000-00000000c04fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: c0500000-c05fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Dell Device 0569
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at c0618000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
Subsystem: Dell Device 0569
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel modules: iTCO_wdt
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Dell Device 0569
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 40
Region 0: I/O ports at 3088 [size=8]
Region 1: I/O ports at 3094 [size=4]
Region 2: I/O ports at 3080 [size=8]
Region 3: I/O ports at 3090 [size=4]
Region 4: I/O ports at 3060 [size=32]
Region 5: Memory at c0617000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
Subsystem: Dell Device 0569
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 10
Region 0: Memory at c0615000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 3040 [size=32]
Kernel modules: i2c-i801
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
Subsystem: Dell Device 0569
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 42
Region 0: I/O ports at 2000 [size=256]
Region 2: Memory at c0404000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at c0400000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 43
Region 0: Memory at c0500000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: wl, iwlwifi
先谢谢您的帮助
@chili555 这是 wifi 连接卡住后 dmesg | grep -e wlan -e iwl 输出的最后一部分
[ 6843.533827] iwlwifi 0000:02:00.0: CSR_HW_IF_CONFIG_REG: 0X00880302
[ 6843.533833] iwlwifi 0000:02:00.0: CSR_INT_COALESCING: 0X0000ff40
[ 6843.533839] iwlwifi 0000:02:00.0: CSR_INT: 0X80000000
[ 6843.533845] iwlwifi 0000:02:00.0: CSR_INT_MASK: 0X00000000
[ 6843.533852] iwlwifi 0000:02:00.0: CSR_FH_INT_STATUS: 0X00010000
[ 6843.533858] iwlwifi 0000:02:00.0: CSR_GPIO_IN: 0X00000000
[ 6843.533864] iwlwifi 0000:02:00.0: CSR_RESET: 0X00000000
[ 6843.533870] iwlwifi 0000:02:00.0: CSR_GP_CNTRL: 0X080403c5
[ 6843.533876] iwlwifi 0000:02:00.0: CSR_HW_REV: 0X000000c8
[ 6843.533882] iwlwifi 0000:02:00.0: CSR_EEPROM_REG: 0Xfccf0ffd
[ 6843.533888] iwlwifi 0000:02:00.0: CSR_EEPROM_GP: 0X90000801
[ 6843.533894] iwlwifi 0000:02:00.0: CSR_OTP_GP_REG: 0X00030001
[ 6843.533900] iwlwifi 0000:02:00.0: CSR_GIO_REG: 0X00080044
[ 6843.533906] iwlwifi 0000:02:00.0: CSR_GP_UCODE_REG: 0X0000a274
[ 6843.533913] iwlwifi 0000:02:00.0: CSR_GP_DRIVER_REG: 0X00000080
[ 6843.533918] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 6843.533924] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 6843.533930] iwlwifi 0000:02:00.0: CSR_LED_REG: 0X00000078
[ 6843.533937] iwlwifi 0000:02:00.0: CSR_DRAM_INT_TBL_REG: 0X8822d721
[ 6843.533942] iwlwifi 0000:02:00.0: CSR_GIO_CHICKEN_BITS: 0X29800200
[ 6843.533948] iwlwifi 0000:02:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 6843.533955] iwlwifi 0000:02:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 6843.533961] iwlwifi 0000:02:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 6843.533964] iwlwifi 0000:02:00.0: FH register values:
[ 6843.533980] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X22cf2a00
[ 6843.533995] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X022c4440
[ 6843.534011] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_WPTR: 0X000000e8
[ 6843.534026] iwlwifi 0000:02:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 6843.534041] iwlwifi 0000:02:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 6843.534057] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 6843.534072] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 6843.534087] iwlwifi 0000:02:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 6843.534103] iwlwifi 0000:02:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 6843.534160] iwlwifi 0000:02:00.0: Start IWL Event Log Dump: display last 20 entries
[ 6843.534181] iwlwifi 0000:02:00.0: EVT_LOGT:0192856206:0x000000ad:1600
[ 6843.534193] iwlwifi 0000:02:00.0: EVT_LOGT:0192856207:0x00000000:1629
[ 6843.534206] iwlwifi 0000:02:00.0: EVT_LOGT:0192856207:0x00000008:0220
[ 6843.534218] iwlwifi 0000:02:00.0: EVT_LOGT:0192856225:0x00000000:0302
[ 6843.534230] iwlwifi 0000:02:00.0: EVT_LOGT:0192856253:0x00002000:1243
[ 6843.534242] iwlwifi 0000:02:00.0: EVT_LOGT:0192856256:0x000000d4:0303
[ 6843.534255] iwlwifi 0000:02:00.0: EVT_LOGT:0192856260:0x0000187b:0217
[ 6843.534267] iwlwifi 0000:02:00.0: EVT_LOGT:0192856260:0x0b7a001c:0217
[ 6843.534280] iwlwifi 0000:02:00.0: EVT_LOGT:0192856263:0x00040000:1243
[ 6843.534293] iwlwifi 0000:02:00.0: EVT_LOGT:0192856333:0x00000000:0708
[ 6843.534305] iwlwifi 0000:02:00.0: EVT_LOGT:0192856335:0x000000d9:0736
[ 6843.534317] iwlwifi 0000:02:00.0: EVT_LOGT:0192856349:0x00000000:0708
[ 6843.534330] iwlwifi 0000:02:00.0: EVT_LOGT:0192856351:0x000000d9:0736
[ 6843.534342] iwlwifi 0000:02:00.0: EVT_LOGT:0192856358:0x00000000:0708
[ 6843.534354] iwlwifi 0000:02:00.0: EVT_LOGT:0192856360:0x000000d9:0736
[ 6843.534367] iwlwifi 0000:02:00.0: EVT_LOGT:0192856367:0x00000000:0708
[ 6843.534379] iwlwifi 0000:02:00.0: EVT_LOGT:0192856369:0x000000d9:0736
[ 6843.534391] iwlwifi 0000:02:00.0: EVT_LOGT:0192856376:0x00000000:0708
[ 6843.534404] iwlwifi 0000:02:00.0: EVT_LOGT:0192856378:0x000000d9:0736
[ 6843.534416] iwlwifi 0000:02:00.0: EVT_LOGT:0192856395:0x00000000:0125
[ 6843.534767] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
[ 6843.542130] iwlwifi 0000:02:00.0: Radio type=0x2-0x0-0x0
[ 6916.660708] iwlwifi 0000:02:00.0: Tx aggregation enabled on ra = ee:9f:ef:35:46:dc tid = 0
[ 6916.711445] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000.
[ 6916.711455] iwlwifi 0000:02:00.0: Loaded firmware version: 18.168.6.1
[ 6916.711541] iwlwifi 0000:02:00.0: Start IWL Error Log Dump:
[ 6916.711547] iwlwifi 0000:02:00.0: Status: 0x000412E4, count: 6
[ 6916.711554] iwlwifi 0000:02:00.0: 0x00000EDC | ADVANCED_SYSASSERT
[ 6916.711559] iwlwifi 0000:02:00.0: 0x00026B94 | uPc
[ 6916.711564] iwlwifi 0000:02:00.0: 0x00026B1C | branchlink1
[ 6916.711568] iwlwifi 0000:02:00.0: 0x00026B1C | branchlink2
[ 6916.711573] iwlwifi 0000:02:00.0: 0x0000EC7A | interruptlink1
[ 6916.711578] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2
[ 6916.711583] iwlwifi 0000:02:00.0: 0xF0F45CE8 | data1
[ 6916.711588] iwlwifi 0000:02:00.0: 0xB83C1050 | data2
[ 6916.711592] iwlwifi 0000:02:00.0: 0x00000AF4 | line
[ 6916.711596] iwlwifi 0000:02:00.0: 0xB2C1568A | beacon time
[ 6916.711601] iwlwifi 0000:02:00.0: 0xD3894976 | tsf low
[ 6916.711606] iwlwifi 0000:02:00.0: 0x00000001 | tsf hi
[ 6916.711610] iwlwifi 0000:02:00.0: 0x00000000 | time gp1
[ 6916.711615] iwlwifi 0000:02:00.0: 0x045DCE16 | time gp2
[ 6916.711619] iwlwifi 0000:02:00.0: 0x00000000 | time gp3
[ 6916.711624] iwlwifi 0000:02:00.0: 0x754312A8 | uCode version
[ 6916.711628] iwlwifi 0000:02:00.0: 0x000000C8 | hw version
[ 6916.711633] iwlwifi 0000:02:00.0: 0x00880302 | board version
[ 6916.711637] iwlwifi 0000:02:00.0: 0xB83C1050 | hcmd
[ 6916.711642] iwlwifi 0000:02:00.0: CSR values:
[ 6916.711646] iwlwifi 0000:02:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
[ 6916.711656] iwlwifi 0000:02:00.0: CSR_HW_IF_CONFIG_REG: 0X00880302
[ 6916.711665] iwlwifi 0000:02:00.0: CSR_INT_COALESCING: 0X00000040
[ 6916.711673] iwlwifi 0000:02:00.0: CSR_INT: 0X80000000
[ 6916.711681] iwlwifi 0000:02:00.0: CSR_INT_MASK: 0X00000000
[ 6916.711690] iwlwifi 0000:02:00.0: CSR_FH_INT_STATUS: 0X00010000
[ 6916.711698] iwlwifi 0000:02:00.0: CSR_GPIO_IN: 0X00000000
[ 6916.711707] iwlwifi 0000:02:00.0: CSR_RESET: 0X00000000
[ 6916.711716] iwlwifi 0000:02:00.0: CSR_GP_CNTRL: 0X080403c5
[ 6916.711723] iwlwifi 0000:02:00.0: CSR_HW_REV: 0X000000c8
[ 6916.711731] iwlwifi 0000:02:00.0: CSR_EEPROM_REG: 0Xfccf0ffd
[ 6916.711739] iwlwifi 0000:02:00.0: CSR_EEPROM_GP: 0X90000801
[ 6916.711748] iwlwifi 0000:02:00.0: CSR_OTP_GP_REG: 0X00030001
[ 6916.711755] iwlwifi 0000:02:00.0: CSR_GIO_REG: 0X00080044
[ 6916.711763] iwlwifi 0000:02:00.0: CSR_GP_UCODE_REG: 0X00004ac4
[ 6916.711771] iwlwifi 0000:02:00.0: CSR_GP_DRIVER_REG: 0X00000080
[ 6916.711779] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP1: 0X00000000
[ 6916.711787] iwlwifi 0000:02:00.0: CSR_UCODE_DRV_GP2: 0X00000000
[ 6916.711794] iwlwifi 0000:02:00.0: CSR_LED_REG: 0X00000078
[ 6916.711803] iwlwifi 0000:02:00.0: CSR_DRAM_INT_TBL_REG: 0X8822d721
[ 6916.711811] iwlwifi 0000:02:00.0: CSR_GIO_CHICKEN_BITS: 0X29800200
[ 6916.711819] iwlwifi 0000:02:00.0: CSR_ANA_PLL_CFG: 0X00000000
[ 6916.711827] iwlwifi 0000:02:00.0: CSR_HW_REV_WA_REG: 0X0001001a
[ 6916.711836] iwlwifi 0000:02:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0000
[ 6916.711840] iwlwifi 0000:02:00.0: FH register values:
[ 6916.711858] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X22cf2a00
[ 6916.711877] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X022c4440
[ 6916.711895] iwlwifi 0000:02:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000078
[ 6916.711913] iwlwifi 0000:02:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80819104
[ 6916.711931] iwlwifi 0000:02:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
[ 6916.711949] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
[ 6916.711968] iwlwifi 0000:02:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
[ 6916.711987] iwlwifi 0000:02:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
[ 6916.712005] iwlwifi 0000:02:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
[ 6916.712066] iwlwifi 0000:02:00.0: Start IWL Event Log Dump: display last 20 entries
[ 6916.712090] iwlwifi 0000:02:00.0: EVT_LOGT:0073256384:0x00001aa0:0217
[ 6916.712105] iwlwifi 0000:02:00.0: EVT_LOGT:0073256385:0x0b9f001c:0217
[ 6916.712120] iwlwifi 0000:02:00.0: EVT_LOGT:0073256387:0x00040000:1243
[ 6916.712136] iwlwifi 0000:02:00.0: EVT_LOGT:0073256396:0x00000000:0708
[ 6916.712151] iwlwifi 0000:02:00.0: EVT_LOGT:0073256397:0x000000d9:0736
[ 6916.712166] iwlwifi 0000:02:00.0: EVT_LOGT:0073256404:0x00000000:0708
[ 6916.712181] iwlwifi 0000:02:00.0: EVT_LOGT:0073256406:0x000000d9:0736
[ 6916.712195] iwlwifi 0000:02:00.0: EVT_LOGT:0073256413:0x00000000:0708
[ 6916.712210] iwlwifi 0000:02:00.0: EVT_LOGT:0073256415:0x000000d9:0736
[ 6916.712225] iwlwifi 0000:02:00.0: EVT_LOGT:0073256422:0x00000000:0708
[ 6916.712240] iwlwifi 0000:02:00.0: EVT_LOGT:0073256424:0x000000d9:0736
[ 6916.712255] iwlwifi 0000:02:00.0: EVT_LOGT:0073256431:0x00000000:0708
[ 6916.712269] iwlwifi 0000:02:00.0: EVT_LOGT:0073256433:0x000000d9:0736
[ 6916.712284] iwlwifi 0000:02:00.0: EVT_LOGT:0073256440:0x00000000:0708
[ 6916.712298] iwlwifi 0000:02:00.0: EVT_LOGT:0073256442:0x000000d9:0736
[ 6916.712313] iwlwifi 0000:02:00.0: EVT_LOGT:0073256449:0x00000000:0708
[ 6916.712328] iwlwifi 0000:02:00.0: EVT_LOGT:0073256451:0x000000d9:0736
[ 6916.712343] iwlwifi 0000:02:00.0: EVT_LOGT:0073256458:0x00000000:0708
[ 6916.712358] iwlwifi 0000:02:00.0: EVT_LOGT:0073256460:0x000000d9:0736
[ 6916.712373] iwlwifi 0000:02:00.0: EVT_LOGT:0073256477:0x00000000:0125
[ 6916.712880] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
[ 6916.720295] iwlwifi 0000:02:00.0: Radio type=0x2-0x0-0x0
答案1
尝试这样做： sudo rfkill unblock all
答案2
我找到了一个适合我的解决方案，这里是链接：
http://www.unixmen.com/resolve-slow-connexion-when-using-wifi-in-ubuntu-1104-natty-narwhal/
链接中提到的第二种方法是我尝试过的方法，对我来说效果很好。