Estou em uma nova instalação do Linux Mint 17.2. Desde que instalei, notei que minha conexão WiFi cai, mas não se desconecta. O WiFi funciona bem no Windows. Não consigo executar ping em nenhum servidor nem carregar nenhum site pela duração. Parece acontecer em intervalos aleatórios.
nanor@teabags ~ $ inxi -N
Network: Card-1: Qualcomm Atheros AR8151 v1.0 Gigabit Ethernet driver: atl1c
Card-2: Realtek RTL8188CE 802.11b/g/n WiFi Adapter driver: rtl8192ce
nanor@teabags ~ $ dmesg |tail --lines=100
[ 11.059457] sound hdaudioC0D2: hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
[ 11.059458] sound hdaudioC0D2: mono: mono_out=0x0
[ 11.059459] sound hdaudioC0D2: inputs:
[ 11.059460] sound hdaudioC0D2: Rear Mic=0x18
[ 11.059462] sound hdaudioC0D2: Front Mic=0x19
[ 11.059463] sound hdaudioC0D2: Line=0x1a
[ 11.059464] sound hdaudioC0D2: CD=0x1c
[ 11.069610] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[ 11.069669] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[ 11.069712] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15
[ 11.069753] input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16
[ 11.331752] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
[ 11.399985] usb 2-1.2: Warning! Unlikely big volume range (=4096), cval->res is probably wrong.
[ 11.399988] usb 2-1.2: [11] FU [Sidetone Playback Volume] ch = 1, val = 0/4096/1
[ 11.404551] intel_rapl: Found RAPL domain package
[ 11.404553] intel_rapl: Found RAPL domain core
[ 11.404555] intel_rapl: Found RAPL domain uncore
[ 11.407743] usbcore: registered new interface driver snd-usb-audio
[ 11.583388] device-mapper: multipath: version 1.7.0 loaded
[ 11.611364] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 11.611540] rtlwifi: wireless switch is on
[ 11.721227] gpio_ich: GPIO from 180 to 255 on gpio_ich
[ 12.530107] init: failsafe main process (652) killed by TERM signal
[ 12.555650] cfg80211: World regulatory domain updated:
[ 12.555653] cfg80211: DFS Master region: unset
[ 12.555654] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 12.555656] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 12.555657] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 12.555658] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 12.555659] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 12.555661] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 12.954767] fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies, Starnberg, GERMANY' taints kernel.
[ 12.954769] Disabling lock debugging due to kernel taint
[ 12.958135] fglrx: module verification failed: signature and/or required key missing - tainting kernel
[ 12.977588] <6>[fglrx] Maximum main memory to use for locked dma buffers: 7735 MBytes.
[ 12.977690] <6>[fglrx] vendor: 1002 device: 6810 revision: 0 count: 1
[ 12.977869] <6>[fglrx] ioport: bar 4, base 0xce00, size: 0x100
[ 12.978009] <6>[fglrx] Kernel PAT support is enabled
[ 12.978023] <6>[fglrx] module loaded - fglrx 15.20.2 [Feb 27 2015] with 1 minors
[ 13.161531] floppy0: no floppy controllers found
[ 13.161548] work still pending
[ 15.834192] Bluetooth: Core ver 2.19
[ 15.834207] NET: Registered protocol family 31
[ 15.834208] Bluetooth: HCI device and connection manager initialized
[ 15.834213] Bluetooth: HCI socket layer initialized
[ 15.834214] Bluetooth: L2CAP socket layer initialized
[ 15.834221] Bluetooth: SCO socket layer initialized
[ 15.900659] init: cups main process (988) killed by HUP signal
[ 15.900667] init: cups main process ended, respawning
[ 15.973743] Bluetooth: RFCOMM TTY layer initialized
[ 15.973752] Bluetooth: RFCOMM socket layer initialized
[ 15.973756] Bluetooth: RFCOMM ver 1.11
[ 16.029694] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 16.029703] Bluetooth: BNEP filters: protocol multicast
[ 16.029709] Bluetooth: BNEP socket layer initialized
[ 18.582172] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 18.587116] atl1c 0000:05:00.0: irq 44 for MSI/MSI-X
[ 18.600970] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 18.719227] init: samba-ad-dc main process (1138) terminated with status 1
[ 18.783580] init: plymouth-upstart-bridge main process ended, respawning
[ 18.786332] init: plymouth-upstart-bridge main process (1301) terminated with status 1
[ 18.786340] init: plymouth-upstart-bridge main process ended, respawning
[ 19.864769] wlan0: authenticate with e4:f4:c6:b8:a8:e8
[ 19.876333] wlan0: send auth to e4:f4:c6:b8:a8:e8 (try 1/3)
[ 19.881784] wlan0: authenticated
[ 19.884017] wlan0: associate with e4:f4:c6:b8:a8:e8 (try 1/3)
[ 19.907144] wlan0: RX AssocResp from e4:f4:c6:b8:a8:e8 (capab=0x411 status=0 aid=2)
[ 19.907266] wlan0: associated
[ 19.907273] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 19.907344] cfg80211: Calling CRDA for country: GB
[ 19.908928] cfg80211: Regulatory domain changed to country: GB
[ 19.908931] cfg80211: DFS Master region: unset
[ 19.908932] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 19.908933] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 19.908935] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 19.908936] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
[ 19.908937] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm), (0 s)
[ 19.908938] cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 21.400732] fglrx_pci 0000:01:00.0: irq 45 for MSI/MSI-X
[ 21.401281] <6>[fglrx] Firegl kernel thread PID: 1352
[ 21.401379] <6>[fglrx] Firegl kernel thread PID: 1353
[ 21.401477] <6>[fglrx] Firegl kernel thread PID: 1354
[ 21.401556] <6>[fglrx] IRQ 45 Enabled
[ 21.411078] <6>[fglrx] Reserved FB block: Shared offset:0, size:1000000
[ 21.411080] <6>[fglrx] Reserved FB block: Unshared offset:f7b4000, size:4000
[ 21.411081] <6>[fglrx] Reserved FB block: Unshared offset:f7b8000, size:548000
[ 21.411082] <6>[fglrx] Reserved FB block: Unshared offset:7ffee000, size:12000
[ 29.362062] init: plymouth-stop pre-start process (1840) terminated with status 1
[ 38.201222] ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xf
[ 38.201233] ata2.00: SError: { CommWake DevExch }
[ 38.201242] ata2.00: hard resetting link
[ 38.311635] usb 2-1.2: 2:1: cannot get freq at ep 0x1
[ 38.312636] usb 2-1.2: 1:1: usb_set_interface failed (-32)
[ 40.428941] ata2.01: hard resetting link
[ 41.457240] ata2.01: failed to resume link (SControl 0)
[ 41.468037] ata2.00: SATA link down (SStatus 1 SControl 300)
[ 41.468055] ata2.01: SATA link down (SStatus 0 SControl 0)
[ 41.468105] ata2: EH complete
[ 578.056361] systemd-hostnamed[5463]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 920.108966] systemd-hostnamed[5584]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
Até agora eu ignorei o IPv6 sem sucesso. Eu também peguei um pouco de alguém com o mesmo problema que tinha um cartão Realtek. Ele foi instruído a escrever o seguinte em /etc/modprobe.d/ com um nome de arquivo correspondente ao seu cartão Realtek, eu acho. Eu fiz algo parecido:
nanor@teabags ~ $ cat /etc/modprobe.d/rtl8192ce.conf
options rtl8192ce fwlps=N ips=N
Eu reiniciei e isso não parece fazer nenhuma diferença. Qualquer ajuda é muito apreciada!
Você pode usar adaptadores sem fio USB compatíveis com Linux. Isso resolveu meu problema no meu antigo laptop. Existem poucas marcas que funcionam muito bem, aqui está uma pequena lista
Adaptador USB sem fio de alto ganho de 150Mbps TP-Link TL-WN722N
TRENDNET TEW 664UB
e há mais coisas que você pode procurar no Google por modelos.