ubuntu 18.04.3 64 bit non rileva scheda di rete wifi su Acer Aspire 5750Z

Ciao Sacarde, avevo lo stesso SO, e non ho dato alcun parametro, tra l'altro dall'installazione live potevo connettermi wifi e ho scaricato, o almeno credo i driver e gli aggiornamenti mentre la installavo, solo dopo installato non trova più il wifi e non mi compare neanche l'icona sulla barra in alto. ti posto i risultati da teminale :

iwconfig

mmm@mmm-Aspire-5750Z:~$ iwconfig enp2s0f0 no wireless extensions.

lo no wireless extensions.

sudo lshw -c network

-network
description: Ethernet interface product: NetLink BCM57785 Gigabit Ethernet PCIe vendor: Broadcom Inc. and subsidiaries physical id: 0 bus info: pci@0000:02:00.0 logical name: enp2s0f0 version: 10 serial: dc:0e:a1:9e:cd:31 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=full firmware=sb ip=192.168.2.111 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:16 memory:c0430000-c043ffff memory:c0440000-c044ffff memory:afb00000-afb007ff
-network UNCLAIMED description: Network controller product: AR9287 Wireless Network Adapter (PCI-Express) vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:03:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:c0500000-c050ffff

se li leggo bene il problema è con : AR9287 Wireless Network Adapter (PCI-Express) vendor: Qualcomm Atheros

mmm@mmm-Aspire-5750Z:~$ systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION
● systemd-modules-load.service loaded failed failed Load Kernel Modules

LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type.

1 loaded units listed. Pass --all to see loaded but inactive units, too. To show all installed unit files use 'systemctl list-unit-files'.

mmm@mmm-Aspire-5750Z:~$ journalctl -b -p err -- Logs begin at Tue 2019-11-26 22:31:56 CET, end at Wed 2019-11-27 21:45:00 CET nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: could not open modde nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: Failed to lookup ali nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: could not open modde nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: Failed to lookup ali nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: could not open modde nov 27 20:05:10 mmm-Aspire-5750Z systemd-modules-load[308]: Failed to lookup ali nov 27 20:05:11 mmm-Aspire-5750Z systemd-udevd[382]: could not open moddep file nov 27 20:05:11 mmm-Aspire-5750Z systemd-udevd[382]: could not open moddep file nov 27 20:05:11 mmm-Aspire-5750Z wpa_supplicant[742]: random: Cannot read from / nov 27 20:05:14 mmm-Aspire-5750Z gnome-session-binary[859]: Unrecoverable failur nov 27 20:05:16 mmm-Aspire-5750Z spice-vdagent[1023]: Cannot access vdagent virt nov 27 20:05:27 mmm-Aspire-5750Z spice-vdagent[1434]: Cannot access vdagent virt nov 27 20:05:40 mmm-Aspire-5750Z pulseaudio[1320]: [pulseaudio] bluez5-util.c: G lines 1-14/14 (END)

ecco cosa mi da Systemctl--failed

mmm@mmm-Aspire-5750Z:~$ systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION
● systemd-modules-load.service loaded failed failed Load Kernel Modules

LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type.

1 loaded units listed. Pass --all to see loaded but inactive units, too. To show all installed unit files use 'systemctl list-unit-files'.

Gentilissimo Sacarde, ho provato a rilanciare da live cd, e funziona alla perfezione, probabilmente ha caricato male qualche file, se non addirittura il kernel, per questo motivo ho reinstallato tutto e ora funziona, ti ringrazio comunque di tutto, sei un angelo.

ho fatto analizzare il problema e questo è il responso : ttps://linux-hardware.org/?probe=8fe3af49fb

SCUSA ERRORE DI COPIA LINK https://linux-hardware.org/?probe=8fe3af49fb