Wifi Problema Reinstallazione

[Gamber]

Buongiorno,
nel notebook una volta il wifi funzionava, ma andava lento.. spesso appariva la scritta:

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Your connection was interrupted
A network change was detected.
ERR_NETWORK_CHANGED

nel tentativo di velocizzare ho fatto un macello, non ricordo cosa ho fatto
Ora internet funziona solo tramite cavetto Ethernet ma la scritta: Your connection was interrupted... continua ad apparire ogni tanto. Quindi bho!

In finale come posso riusare il wireless? é possibile velocizzarlo?

Ps: Consigliate una WiFi usb key, se si quale?

Da terminale:

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sudo apt-get install linux-firmware reboot
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package reboot

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lspci | grep -i net
01:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM57786 Gigabit Ethernet PCIe (rev 01)
02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43228 802.11a/b/g/n

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inxi -Fz
System:
  Host: mirko-TMP455-M Kernel: 4.15.0-140-generic x86_64 bits: 64 
  Desktop: Xfce 4.12.3 Distro: Linux Mint 19.1 Tessa 
Machine:
  Type: Laptop System: Acer product: TMP455-M v: V2.13 serial: <filter> 
  Mobo: Acer model: BA51_HW v: V2.13 serial: <filter> UEFI: Insyde v: 2.13 
  date: 08/21/2014 
Battery:
  ID-1: BAT1 charge: 29.6 Wh condition: 29.6/37.0 Wh (80%) 
CPU:
  Topology: Dual Core model: Intel Core i5-4210U bits: 64 type: MT MCP 
  L2 cache: 3072 KiB 
  Speed: 798 MHz min/max: 800/2700 MHz Core speeds (MHz): 1: 798 2: 798 
  3: 798 4: 799 
Graphics:
  Device-1: Intel Haswell-ULT Integrated Graphics driver: i915 v: kernel 
  Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa 
  resolution: 1366x768~60Hz 
  OpenGL: renderer: Mesa DRI Intel HD Graphics 4400 (HSW GT2) 
  v: 4.5 Mesa 20.0.8 
Audio:
  Device-1: Intel Haswell-ULT HD Audio driver: snd_hda_intel 
  Device-2: Intel 8 Series HD Audio driver: snd_hda_intel 
  Sound Server: ALSA v: k4.15.0-140-generic 
Network:
  Device-1: Broadcom and subsidiaries NetXtreme BCM57786 Gigabit Ethernet 
  PCIe 
  driver: tg3 
  IF: enp1s0f0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  Device-2: Broadcom and subsidiaries BCM43228 802.11a/b/g/n driver: N/A 
Drives:
  Local Storage: total: 465.76 GiB used: 185.01 GiB (39.7%) 
  ID-1: /dev/sda vendor: Western Digital model: WD5000LPVX-22V0TT0 
  size: 465.76 GiB 
Partition:
  ID-1: / size: 198.98 GiB used: 184.98 GiB (93.0%) fs: ext4 dev: /dev/sda5 
  ID-2: swap-1 size: 954.0 MiB used: 780 KiB (0.1%) fs: swap dev: /dev/sda7 
Sensors:
  System Temperatures: cpu: 44.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 236 Uptime: 52m Memory: 3.73 GiB used: 1.32 GiB (35.4%) 
  Shell: bash inxi: 3.0.27 

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sudo apt-get install firmware-tg3-installer
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package firmware-tg3-installer

[Paolo_C]

Salve,
prova questo:

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sudo apt update
sudo apt install broadcom-sta-dkms

riavvia.

se non funzionasse prova anche:

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sudo apt install broadcom-sta-source

[Gamber]

Provato entrambi.
Ancora non funziona.

Al riavvio ho selezionato Boot come opzione nella finestra blu.

Ora su Update Manager c'è disponibile: System and service manager 237-3ubuntu10.46

[sleeper12]

Provare:

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 sudo apt remove broadcom-sta-source && sudo apt install bcmwl-kernel-source 

Riavvia

[Gamber]

Non funziona, vedo solo conessione via cavo.

[sleeper12]

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 sudo apt purge broadcom-sta-source 

Riavvia

[Gamber]

Ancora niente

[sleeper12]

Vediamo i risultati di:

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 rfkill list && iwconfig && mokutil --sb-state 

[Gamber]

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0: acer-wireless: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: acer-bluetooth: Bluetooth
	Soft blocked: yes
	Hard blocked: no
enp1s0f0  no wireless extensions.

lo        no wireless extensions.

SecureBoot enabled

[sleeper12]

Disabilita l'avvio sicuro nel BIOS.

[Gamber]

Fatto, ma non funziona

[sleeper12]

Vediamo:

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 lspci -nnk | grep -iA3 net && mokutil --sb-state 

[Gamber]

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01:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme BCM57786 Gigabit Ethernet PCIe [14e4:16b3] (rev 01)
	Subsystem: Acer Incorporated [ALI] NetXtreme BCM57786 Gigabit Ethernet PCIe [1025:082a]
	Kernel driver in use: tg3
	Kernel modules: tg3
01:00.1 SD Host controller [0805]: Broadcom Inc. and subsidiaries BCM57765/57785 SDXC/MMC Card Reader [14e4:16bc] (rev 01)
--
02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43228 802.11a/b/g/n [14e4:4359]
	Subsystem: Foxconn International, Inc. BCM43228 802.11a/b/g/n [105b:e04b]
	Kernel driver in use: bcma-pci-bridge
	Kernel modules: bcma, wl
SecureBoot disabled

[sleeper12]

Provare:

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 sudo apt purge firmware-b43-installer broadcom-sta-source && sudo apt install --reinstall bcmwl-kernel-source 

Riavvia

[Gamber]

Fatto, ma non funziona

[sleeper12]

Che cosa questo spettacolo ora:

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 lspci -nnk | grep -iA3 

[Gamber]

mmm, questo?

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~$  lspci -nnk | grep -iA3 
Usage: grep [OPTION]... PATTERN [FILE]...
Try 'grep --help' for more information.
mirko@mirko-TMP455-M:~$ grep --help
Usage: grep [OPTION]... PATTERN [FILE]...
Search for PATTERN in each FILE.
Example: grep -i 'hello world' menu.h main.c

Pattern selection and interpretation:
  -E, --extended-regexp     PATTERN is an extended regular expression
  -F, --fixed-strings       PATTERN is a set of newline-separated strings
  -G, --basic-regexp        PATTERN is a basic regular expression (default)
  -P, --perl-regexp         PATTERN is a Perl regular expression
  -e, --regexp=PATTERN      use PATTERN for matching
  -f, --file=FILE           obtain PATTERN from FILE
  -i, --ignore-case         ignore case distinctions
  -w, --word-regexp         force PATTERN to match only whole words
  -x, --line-regexp         force PATTERN to match only whole lines
  -z, --null-data           a data line ends in 0 byte, not newline

Miscellaneous:
  -s, --no-messages         suppress error messages
  -v, --invert-match        select non-matching lines
  -V, --version             display version information and exit
      --help                display this help text and exit

Output control:
  -m, --max-count=NUM       stop after NUM selected lines
  -b, --byte-offset         print the byte offset with output lines
  -n, --line-number         print line number with output lines
      --line-buffered       flush output on every line
  -H, --with-filename       print file name with output lines
  -h, --no-filename         suppress the file name prefix on output
      --label=LABEL         use LABEL as the standard input file name prefix
  -o, --only-matching       show only the part of a line matching PATTERN
  -q, --quiet, --silent     suppress all normal output
      --binary-files=TYPE   assume that binary files are TYPE;
                            TYPE is 'binary', 'text', or 'without-match'
  -a, --text                equivalent to --binary-files=text
  -I                        equivalent to --binary-files=without-match
  -d, --directories=ACTION  how to handle directories;
                            ACTION is 'read', 'recurse', or 'skip'
  -D, --devices=ACTION      how to handle devices, FIFOs and sockets;
                            ACTION is 'read' or 'skip'
  -r, --recursive           like --directories=recurse
  -R, --dereference-recursive  likewise, but follow all symlinks
      --include=FILE_PATTERN  search only files that match FILE_PATTERN
      --exclude=FILE_PATTERN  skip files and directories matching FILE_PATTERN
      --exclude-from=FILE   skip files matching any file pattern from FILE
      --exclude-dir=PATTERN  directories that match PATTERN will be skipped.
  -L, --files-without-match  print only names of FILEs with no selected lines
  -l, --files-with-matches  print only names of FILEs with selected lines
  -c, --count               print only a count of selected lines per FILE
  -T, --initial-tab         make tabs line up (if needed)
  -Z, --null                print 0 byte after FILE name

Context control:
  -B, --before-context=NUM  print NUM lines of leading context
  -A, --after-context=NUM   print NUM lines of trailing context
  -C, --context=NUM         print NUM lines of output context
  -NUM                      same as --context=NUM
      --color[=WHEN],
      --colour[=WHEN]       use markers to highlight the matching strings;
                            WHEN is 'always', 'never', or 'auto'
  -U, --binary              do not strip CR characters at EOL (MSDOS/Windows)

When FILE is '-', read standard input.  With no FILE, read '.' if
recursive, '-' otherwise.  With fewer than two FILEs, assume -h.
Exit status is 0 if any line is selected, 1 otherwise;
if any error occurs and -q is not given, the exit status is 2.

Report bugs to: bug-grep@gnu.org
GNU grep home page: <http://www.gnu.org/software/grep/>
General help using GNU software: <http://www.gnu.org/gethelp/>

[sleeper12]

Errore mio, prova:

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 lspci -nnk | grep -iA3 net 

[Gamber]

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01:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme BCM57786 Gigabit Ethernet PCIe [14e4:16b3] (rev 01)
	Subsystem: Acer Incorporated [ALI] NetXtreme BCM57786 Gigabit Ethernet PCIe [1025:082a]
	Kernel driver in use: tg3
	Kernel modules: tg3
01:00.1 SD Host controller [0805]: Broadcom Inc. and subsidiaries BCM57765/57785 SDXC/MMC Card Reader [14e4:16bc] (rev 01)
--
02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43228 802.11a/b/g/n [14e4:4359]
	Subsystem: Foxconn International, Inc. BCM43228 802.11a/b/g/n [105b:e04b]
	Kernel driver in use: bcma-pci-bridge
	Kernel modules: bcma, wl

[sleeper12]

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 sudo modprobe -rv bcma wl 

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 sudo modprobe -v wl