L'uso di Realtek 8732be su un flusso Hp 11 è estremamente lento?

Ho un nuovissimo HP Stream 11-r001nd. Riesco a connettermi alla mia rete, ma è troppo lenta. Anche quando metto il mio laptop e il router uno accanto all'altro è troppo lento per guardare un video di YouTube (se la pagina Web di YouTube viene caricata). Su Windows 10 questo problema non esisteva.

In questo video di YouTube mostra che usando la versione 14.10 la velocità era accettabile. Ma quella versione non è più supportata.

########## wireless info START ##########

Report from: 21 Jun 2016 16:42 CEST +0200

Booted last: 21 Jun 2016 00:00 CEST +0200

Script from: 26 May 2016 21:56 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 16.04 LTS
Release:    16.04
Codename:   xenial

##### kernel ############################

Linux 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:27:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
    DeviceName: Foxconn WLAN Realtek Sanji RTL8723BE bgn 1x1 + BT 4 LE PCIe+USB NGFF 2230 M.2 WW
    Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 001 Device 008: ID 0ace:1211 ZyDAS ZD1211 802.11g
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 04f2:b50d Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no
2: phy1: Wireless LAN
    Soft blocked: no
    Hard blocked: no

##### lsmod #############################

hp_wmi                 16384  0
sparse_keymap          16384  1 hp_wmi
mac80211              737280  1 zd1211rw
cfg80211              565248  2 mac80211,zd1211rw
snd_soc_rt5640        114688  0
snd_soc_rl6231         16384  1 snd_soc_rt5640
snd_soc_core          212992  2 snd_soc_rt5640,snd_soc_sst_mfld_platform
snd_pcm               106496  8 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_soc_sst_mfld_platform,snd_pcm_dmaengine,snd_hda_core
wmi                    20480  1 hp_wmi

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

wlx<IF from MAC [IF1]> Link encap:Ethernet  HWaddr <MAC 'wlx<IF from MAC [IF1]>' [IF1]>  
          inet addr:192.168.2.5  Bcast:192.168.2.255  Mask:255.255.255.0
          inet6 addr: fe80::6513:6163:ec8d:ccb5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2501 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2526 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1392891 (1.3 MB)  TX bytes:375779 (375.7 KB)

##### iwconfig ##########################

lo        no wireless extensions.

wlx<IF from MAC [IF1]>  IEEE 802.11bg  ESSID:"VGV75190BB329"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: <MAC 'VGV75190BB329' [AC1]>   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=66/100  Signal level=66/100  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:3  Invalid misc:19   Missed beacon:0

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.2.254   0.0.0.0         UG    600    0        0 wlx<IF from MAC [IF1]>
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlx<IF from MAC [IF1]>
192.168.2.0     0.0.0.0         255.255.255.0   U     600    0        0 wlx<IF from MAC [IF1]>

##### resolv.conf #######################

nameserver 127.0.1.1
search home

##### network managers ##################

Installed:

    NetworkManager

Running:

root       681     1  0 09:51 ?        00:00:03 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

Error: nmcli (1.2.0) and NetworkManager (1.1.93) versions don't match. Force execution using --nocheck, but the results are unpredictable.

Error: nmcli (1.2.0) and NetworkManager (1.1.93) versions don't match. Force execution using --nocheck, but the results are unpredictable.

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/VGV75190BB329]] (600 root)
[connection] id=VGV75190BB329 | type=wifi | permissions=user:ubuntu:;
[wifi] mac-address=<MAC address> | mac-address-blacklist= | ssid=VGV75190BB329
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/VGV75190BB329 1]] (600 root)
[connection] id=VGV75190BB329 1 | type=wifi | permissions=user:thijs:;
[wifi] mac-address=<MAC address> | mac-address-blacklist= | ssid=VGV75190BB329
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/VGV75190BB329 2]] (600 root)
[connection] id=VGV75190BB329 2 | type=wifi | permissions=user:thijs:;
[wifi] mac-address=<MAC 'wlx<IF from MAC [IF1]>' [IF1]> | mac-address-blacklist= | ssid=VGV75190BB329
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: Europe/Amsterdam (based on set time zone)

country NL: DFS-ETSI
    (2402 - 2482 @ 40), (N/A, 20), (N/A)
    (5170 - 5250 @ 80), (N/A, 20), (N/A), NO-OUTDOOR
    (5250 - 5330 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS
    (5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS
    (57000 - 66000 @ 2160), (N/A, 40), (N/A)

##### iwlist channels ###################

lo        no frequency information.

wlx<IF from MAC [IF1]>  13 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Current Frequency:2.412 GHz (Channel 1)

##### iwlist scan #######################

lo        Interface doesn't support scanning.

Channel occupancy:

      2   APs on   Frequency:2.412 GHz (Channel 1)
      2   APs on   Frequency:2.437 GHz (Channel 6)
      1   APs on   Frequency:2.442 GHz (Channel 7)
      1   APs on   Frequency:2.462 GHz (Channel 11)

wlx<IF from MAC [IF1]>  Scan completed :
          Cell 01 - Address: <MAC 'VGV75190BB329' [AC1]>
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=66/100  Signal level=66/100  
                    Encryption key:on
                    ESSID:"VGV75190BB329"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000032f60cab0e4
                    Extra: Last beacon: 68ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 02 - Address: <MAC '' [AC2]>
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=20/100  Signal level=20/100  
                    Encryption key:off
                    ESSID:""
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000eaf31214f
                    Extra: Last beacon: 440ms ago
          Cell 03 - Address: <MAC 'VFNL-BA1D5B' [AC3]>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=40/100  Signal level=40/100  
                    Encryption key:on
                    ESSID:"VFNL-BA1D5B"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=00000374c72e2c2b
                    Extra: Last beacon: 80ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 04 - Address: <MAC 'UPC4419724' [AC4]>
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=31/100  Signal level=31/100  
                    Encryption key:on
                    ESSID:"UPC4419724"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=000000203ca54961
                    Extra: Last beacon: 80ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
          Cell 05 - Address: <MAC 'walid72' [AC5]>
                    Channel:7
                    Frequency:2.442 GHz (Channel 7)
                    Quality=43/100  Signal level=43/100  
                    Encryption key:on
                    ESSID:"walid72"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000051a371e5da7
                    Extra: Last beacon: 80ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 06 - Address: <MAC 'TELE2-5D3D07' [AC6]>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=16/100  Signal level=16/100  
                    Encryption key:on
                    ESSID:"TELE2-5D3D07"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000002d0d00fd9c5
                    Extra: Last beacon: 80ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK

##### module infos ######################

[mac80211]
filename:       /lib/modules/4.4.0-24-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     2FFAEED0245CA1D97FE1E44
depends:        cfg80211
intree:         Y
vermagic:       4.4.0-24-generic SMP mod_unload modversions 
parm:           minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/4.4.0-24-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     25A45701AAA64DAC1E47D9D
depends:        
intree:         Y
vermagic:       4.4.0-24-generic SMP mod_unload modversions 
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

##### dmesg #############################

[10532.987919] wlx<IF from MAC [IF1]>: authenticated
[10532.990572] wlx<IF from MAC [IF1]>: associate with <MAC 'VGV75190BB329' [AC1]> (try 1/3)
[10532.994114] wlx<IF from MAC [IF1]>: RX AssocResp from <MAC 'VGV75190BB329' [AC1]> (capab=0x411 status=0 aid=1)
[10532.994148] wlx<IF from MAC [IF1]>: associated
[10532.994253] IPv6: ADDRCONF(NETDEV_CHANGE): wlx<IF from MAC [IF1]>: link becomes ready
[24341.729193] wlx<IF from MAC [IF1]>: deauthenticating from <MAC 'VGV75190BB329' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
[24359.825298] zd1211rw 1-2.1:1.0 wlx<IF from MAC [IF1]>: renamed from wlan0
[24359.869707] IPv6: ADDRCONF(NETDEV_UP): wlx<IF from MAC [IF1]>: link is not ready
[24359.876232] usb 1-2.1: firmware version 0x4330 and device bootcode version 0x4802 differ
[24359.919778] zd1211rw 1-2.1:1.0: firmware version 4605
[24359.947673] IPv6: ADDRCONF(NETDEV_UP): wlx<IF from MAC [IF1]>: link is not ready (repeated 2 times)
[24360.985805] wlx<IF from MAC [IF1]>: authenticate with <MAC 'VGV75190BB329' [AC1]>
[24360.996462] wlx<IF from MAC [IF1]>: send auth to <MAC 'VGV75190BB329' [AC1]> (try 1/3)
[24360.998389] wlx<IF from MAC [IF1]>: authenticated
[24361.000117] wlx<IF from MAC [IF1]>: associate with <MAC 'VGV75190BB329' [AC1]> (try 1/3)
[24361.003298] wlx<IF from MAC [IF1]>: RX AssocResp from <MAC 'VGV75190BB329' [AC1]> (capab=0x411 status=0 aid=1)
[24361.003335] wlx<IF from MAC [IF1]>: associated
[24361.003403] IPv6: ADDRCONF(NETDEV_CHANGE): wlx<IF from MAC [IF1]>: link becomes ready

########## wireless info END ############

Ricaricare il modulo:

[email protected]:~$ sudo modprobe -rv rtl8723be
[email protected]:~$ sudo modprobe -v rtl8723be ant_sel=2
insmod /lib/modules/4.4.0-24-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko 
modprobe: ERROR: could not insert 'rtl8723be': Required key not available
[email protected]:~$ sudo modprobe -rv rtl8723be
[email protected]:~$ sudo modprobe -v rtl8723be ant_sel=1
insmod /lib/modules/4.4.0-24-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko 
modprobe: ERROR: could not insert 'rtl8723be': Required key not available
[email protected]:~$ 

Risposta accettata:

Ho esaminato i risultati del tuo script wireless.

Correlati:i video flash incorporati (come YouTube) sono così pesanti sulla GPU?

Hai due messaggi di errore. Error: nmcli (1.2.0) and NetworkManager (1.1.93) versions don't match. Force execution using --nocheck, but the results are unpredictable. Questo è stato segnalato come bug 1590335 da un altro utente, ma un riavvio lo ha risolto.

[24359.876232] usb 1-2.1: firmware version 0x4330 and device bootcode version 0x4802 differ
[24359.919778] zd1211rw 1-2.1:1.0: firmware version 4605.

Questo sembra mostrare che il firmware errato viene caricato su un dispositivo wireless USB.

Correlati:non riesco a trovare i pacchetti VPN sstp con Ubuntu 16.04 LTS?

Tuttavia, il tuo vero problema sembra essere Realtek Wifi Card RTL8723be che non funziona correttamente. Segui i passaggi indicati nella soluzione lì.

Se questo risolve il tuo problema, fai clic sul segno di spunta a sinistra per mostrare che il tuo problema è stato risolto. In caso contrario ripubblicare l'output dello script wifi, preferibilmente dopo aver risolto gli altri due errori. Il primo dovrebbe scomparire dopo un riavvio. Il secondo non apparirà se rimuovi il dispositivo USB prima di eseguire lo script.

Ho esaminato i risultati della tua seconda esecuzione dello script wireless. Diamo un'occhiata ad alcuni frammenti:

    UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:700903 errors:0 dropped:0 overruns:0 frame:0
      TX packets:388503 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 ??
      RX bytes:956196276 (956.1 MB)  TX bytes:35329540 (35.3 MB)

Questo mostra una connessione wireless che funziona perfettamente e riceve quasi un gigabyte di dati. Il prossimo frammento

    Link Quality=62/100  Signal level=62/100  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
      Tx excessive retries:10090  Invalid misc:95221   Missed beacon:0

Mostra che l'adattatore wireless funziona in circostanze difficili. È come se fosse inceppato.

SSID                             BSSID                                          MODE   CHAN  FREQ      RATE       SIGNAL  BARS  SECURITY   ACTIVE  * 
VGV75190BB329                    <MAC 'VGV75190BB329' [AC1]>                    Infra  1     2412 MHz  54 Mbit/s  62      ▂▄▆_  WPA2       yes     * 
walid72                          <MAC 'walid72' [AC4]>                          Infra  7     2442 MHz  54 Mbit/s  44      ▂▄__  WPA2       no        
HP-Print-C3-Deskjet 2540 series  <MAC 'HP-Print-C3-Deskjet 2540 series' [AC2]>  Infra  1     2412 MHz  54 Mbit/s  35      ▂▄__  WPA2       no        
UPC4419724                       <MAC 'UPC4419724' [AC3]>                       Infra  6     2437 MHz  54 Mbit/s  31      ▂▄__  WPA1 WPA2  no        
VFNL-BA1D5B                      <MAC 'VFNL-BA1D5B' [AN5]>                      Infra  6     2437 MHz  54 Mbit/s  27      ▂___  WPA2       no        
HP-Print-7E-Photosmart 5520      <MAC 'HP-Print-7E-Photosmart 5520' [AN6]>      Infra  6     2437 MHz  54 Mbit/s  14      ▂___  WPA2       no        

Questo mostra che l'inceppamento proviene da un punto di accesso chiamato HP-print-C3-Deskjet 2540 series. Suggerirei di cambiare il canale RF del punto di accesso o della stampante in modo che siano su canali diversi. Al momento sono entrambi sul canale 1. Gli unici altri canali utilizzati sono 6 e 7, quindi hai molto da scegliere.

La stampante funge da punto di accesso perché è stato premuto il pulsante Wireless Direct (vedere pagina 53 del manuale dell'utente). Dovresti aver collegato la stampante al router seguendo le istruzioni a pagina 49 del manuale. Il manuale utente è disponibile online qui