Power management for WIFI is disabled :
iwconfig | grep Powerlo no wireless extensions. enp4s0f1 no wireless extensions. Bit Rate=72.2 Mb/s Tx-Power=20 dBm Power Management:off
Workaround : use the following driver (better because muche more stable).
# Copied from https://sites.google.com/site/easylinuxtipsproject/reserve-7#TOC-The-rtlwifi_new-driver-from-lwfinger-regular-edition- (october 2018) sudo apt-get install git build-essential linux-headers-$(uname -r) git clone https://github.com/lwfinger/rtlwifi_new.git cd rtlwifi_new make sudo make install
Bus 001 Device 002: ID 06f8:e033 Guillemot Corp. Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS]sudo lsusb -v
Bus 001 Device 004: ID 06f8:e033 Guillemot Corp. Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS] Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x06f8 Guillemot Corp. idProduct 0xe033 Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS] bcdDevice 2.00 iManufacturer 1 Realtek iProduct 2 802.11n WLAN Adapter iSerial 3 00e04c000001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 46 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 4 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered)hwinfo --usb
03: USB 00.0: 0200 Ethernet controller [Created at usb.122] Unique ID: ADDn.6cD_jRdUh49 Parent ID: k4bc.2DFUsyrieMD SysFS ID: /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0 SysFS BusID: 1-1:1.0 Hardware Class: network Model: "Guillemot Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS]" Hotplug: USB Vendor: usb 0x06f8 "Guillemot Corp." Device: usb 0xe033 "Hercules HWNUp-150 802.11n Wireless N Pico [Realtek RTL8188CUS]" Revision: "2.00" Serial ID: "00e04c000001" Driver: "rtl8192cu" Driver Modules: "rtl8192cu" Device File: wlx0008d395dec6 Speed: 480 Mbps HW Address: 00:08:d3:95:de:c6 Link detected: yes Module Alias: "usb:v06F8pE033d0200dc00dsc00dp00icFFiscFFipFFin00" Driver Info #0: Driver Status: rtl8192cu is active Driver Activation Cmd: "modprobe rtl8192cu" Driver Info #1: Driver Status: rtl8xxxu is active Driver Activation Cmd: "modprobe rtl8xxxu" Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #2 (Hub)
Dispositivos 3G | 33 |
Acquisition cards | 34 |
Bluetooth | 56 |
Placas de rede | 171 |
Leitores de impressão digital | 11 |
Controladores de host | 170 |
Modems | 18 |
Notebook | 788 |
Printers | 125 |
Adaptadores RAID | 20 |
Scanners | 24 |
Leitores de cartão SD | 56 |
Placas de som | 140 |
Placas de vídeo | 341 |
Webcams | 132 |
Placas wifi | 233 |
TOTAL | 2352 |