我有类似的问题安装 Ubuntu 18.04 后 WiFi 无法使用但我的硬件不同。我的机器是 acer aspire 4755G,配有 Broadcom wifi。以下是我收集的硬件信息:
$ sudo lshw -C network; lshw
*-network DISABLED
description: Wireless interface
product: BCM43227 802.11b/g/n
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 00
serial: cc:af:78:73:68:e0
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) latency=0 multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:f3a00000-f3a03fff
*-network
description: Ethernet interface
product: NetLink BCM57785 Gigabit Ethernet PCIe
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0f0
version: 10
serial: 20:6a:8a:50:73:0e
size: 1Gbit/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=192.168.1.231 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:19 memory:f3800000-f380ffff memory:f3810000-f381ffff memory:cfa00000-cfa007ff
$ lspci -nn -d 14e4:
03:00.0 Network controller [0280]: Broadcom Limited BCM43227 802.11b/g/n [14e4:4358]
04:00.0 Ethernet controller [0200]: Broadcom Limited NetLink BCM57785 Gigabit Ethernet PCIe [14e4:16b5] (rev 10)
04:00.1 SD Host controller [0805]: Broadcom Limited BCM57765/57785 SDXC/MMC Card Reader [14e4:16bc] (rev 10)
04:00.2 System peripheral [0880]: Broadcom Limited BCM57765/57785 MS Card Reader [14e4:16be] (rev 10)
04:00.3 System peripheral [0880]: Broadcom Limited BCM57765/57785 xD-Picture Card Reader [14e4:16bf] (rev 10)
$ rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: yes
2: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
3: acer-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
4: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
我做到了rfkill unblock all
。输出相同。看看这个。有什么想法吗?
1: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: yes
好的,希望我知道该怎么做。我还在尝试弄清楚这个编辑器。
$ sudo lsmod | grep wmi
acer_wmi 20480 0
sparse_keymap 16384 1 acer_wmi
wmi_bmof 16384 0
snd_rawmidi 32768 1 snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd 81920 17 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm
mxm_wmi 16384 1 nouveau
wmi 24576 4 wmi_bmof,acer_wmi,mxm_wmi,nouveau
video 40960 3 acer_wmi,nouveau,i915
非常感谢大家的及时回复。很抱歉我没有那么及时。我试过 Fn+F3,是的,当我第一次购买这台笔记本电脑时,我想那时是 Ubuntu 12.04,这是一个问题,但后来就没再出现过。我今晚刚试过,它切换到飞行模式。Fn+F3 再次进入非飞行模式。
从下面的输出中可以看出,尽管我解除了所有阻止,但硬阻止仍是肯定的。我还在下面截取了 wifi 设置的屏幕截图。希望一切顺利。
$ sudo rfkill unblock all
$ sudo rfkill list all
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
3: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: yes
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
回答 2 Leonard:不,这是第二代系统,准确地说是英特尔 i5 - 2410。当时还没有发明 UEFI。从上面的输出可以看出,这是一个 Broadcom wifi。这样的系统很难运行。
感谢 leonard 和 pilot6 的及时回复。我回想了一下我的安装,因为那是很久以前的事了,决定重新安装,这次没有勾选“安装专有驱动程序”复选框。以前可以,但这次不行。另外,正如我所说,这个系统实际上不支持 UEFI,所以可能没有 BIOS 默认值;但是,如果我不以 UEFI 安装,砰!安装过程中收到此错误消息。
因此,我使用 UEFI 分区进行安装,并且安装顺利,但系统未检测到 wifi。我尝试在不同的分区上安装 Kubuntu 18.04,问题依然存在。
有人知道他做了什么吗?我愿意尝试一下。目前,我的系统仍然“崩溃和烧毁”,所以我可以多次重新安装它,没问题。问题是,我不确定他做了什么。 https://ubuntuforums.org/showthread.php?t=2386964
如果是内核升级,我之前在 17.10 中做过这个,不过是在另一台笔记本电脑上。 https://www.tecmint.com/upgrade-kernel-in-ubuntu/
我这里有一些新信息。我按照 Ubuntu 论坛帖子的建议运行了一个inxi
命令。输出如下。
$ sudo inxi -Fnn
System: Host: aspire4755g Kernel: 4.15.0-20-generic x86_64 bits: 64
Console: tty 0 Distro: Ubuntu 18.04 LTS
Machine: Device: laptop System: Acer product: Aspire 4755 v: V2.07 serial: LXRNG020051310B9BA2000
Mobo: Acer model: Aspire 4755 v: V2.07 serial: LXRNG020051310B9BA2000
UEFI: Phoenix v: V2.07 date: 07/22/2011
Battery BAT0: charge: 5.7 Wh 96.9% condition: 5.9/47.5 Wh (12%)
CPU: Dual core Intel Core i5-2410M (-MT-MCP-) cache: 3072 KB
clock speeds: max: 2300 MHz 1: 798 MHz 2: 798 MHz 3: 798 MHz
4: 798 MHz
Graphics: Card-1: Intel 2nd Generation Core Integrated Graphics Controller
Card-2: NVIDIA GF108M [GeForce GT 540M]
Display Server: X.Org 1.19.6 drivers: i915,nouveau
Resolution: [email protected], [email protected]
OpenGL: renderer: Mesa DRI Intel Sandybridge Mobile
version: 3.3 Mesa 18.0.0-rc5
Audio: Card Intel 6 Series/C200 Series Family High Def. Audio Controller
driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.15.0-20-generic
Network: Card-1: Broadcom Limited BCM43227 802.11b/g/n driver: wl
IF: wlp3s0 state: down mac: cc:af:78:73:68:e0
Card-2: Broadcom Limited NetLink BCM57785 Gigabit Ethernet PCIe
driver: tg3
IF: enp4s0f0 state: up speed: 1000 Mbps duplex: full
mac: 20:6a:8a:50:73:0e
Drives: HDD Total Size: 500.1GB (4.9% used)
ID-1: /dev/sda model: HGST_HTS545050A7 size: 500.1GB
Partition: ID-1: / size: 36G used: 4.6G (14%) fs: ext4 dev: /dev/sda3
ID-2: swap-1 size: 20.48GB used: 0.00GB (0%)
fs: swap dev: /dev/sda2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 60.0C mobo: 53.0C gpu: 52.0
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 257 Uptime: 10 min Memory: 1291.5/7818.6MB
Client: Shell (sudo) inxi: 2.3.56
答案1
我找到了!对于某些类型的硬件,即使它们不支持 UEFI,也可以在安装 Ubuntu 时手动覆盖。18.04 不再如此。很多人都抱怨过这一点。即使系统不支持 UEFI,也可以通过创建 UEFI 分区来“欺骗”系统运行,但此后 wifi 将无法工作。修复此问题的方法是按照以下步骤操作:
答案2
我在 Acer ES14 上运行带有 MATE 桌面的 Ubuntu 18,无法启用 wifi......(~sudo lshw -C network; lshw
*-network DISABLED 描述的结果:无线接口)
我退出了 MATE 并重新登录 Ubuntu 桌面。
- 右上方菜单上的 Wifi曾是离开。我换了在。
- 退出后重新登录 MATE 并启用 Wi-Fi。
一切都和以前一样……
希望这可以帮助。