我是 Ubuntu 的新用户（我之前的所有经验都是在 Windows 上）。我最近为了工作开始使用双启动，所以我在 Dell Inspiron 1525 上安装了 Ubuntu 12.04。它拥有 Broadcom BCM4312 无线网卡。我可以轻松连接以太网，但我的无线网络表现得很奇怪。我可以看到所有可用的网络（显然包括我自己的网络），但每当我尝试连接它时，它都会反复要求我验证连接。我非常肯定我输入了正确的密码（WPA 安全设置），但它拒绝连接。我浏览并尝试了其他响应，但无济于事，但我对 Ubuntu 完全陌生，不知道某些终端命令实际上在做什么，所以可能是用户错误。有人愿意给我一些帮助吗？谢谢。
编辑：终端响应
lscpi -nn回复：
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory
Controller Hub [8086:2a00] (rev 0c)
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960
Integrated Graphics Controller (primary) [8086:2a02] (rev 0c)
00:02.1 Display controller [0380]: Intel Corporation Mobile GM965/GL960 Integrated
Graphics Controller (secondary) [8086:2a03] (rev 0c)
00:1a.0 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI
Controller #4 [8086:2834] (rev 02)
00:1a.1 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI
Controller #5 [8086:2835] (rev 02)
00:1a.7 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI
Controller #2 [8086:283a] (rev 02)
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio
Controller [8086:284b] (rev 02)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1
[8086:283f] (rev 02)
00:1c.1 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2
[8086:2841] (rev 02)
00:1c.4 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5
[8086:2847] (rev 02)
00:1d.0 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI
Controller #1 [8086:2830] (rev 02)
00:1d.1 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI
Controller #2 [8086:2831] (rev 02)
00:1d.2 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI
Controller #3 [8086:2832] (rev 02)
00:1d.7 USB controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI
Controller #1 [8086:2836] (rev 02)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448]
(rev f2)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801HM (ICH8M) LPC Interface
Controller [8086:2815] (rev 02)
00:1f.1 IDE interface [0101]: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) IDE
Controller [8086:2850] (rev 02)
00:1f.2 SATA controller [0106]: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA
Controller [AHCI mode] [8086:2829] (rev 02)
00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller
[8086:283e] (rev 02)
02:09.0 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller
[1180:0832] (rev 05)
02:09.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter [1180:0822] (rev 22)
02:09.2 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter
[1180:0592] (rev 12)
02:09.3 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller
[1180:0852] (rev 12)
09:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8040 PCI-E Fast
Ethernet Controller [11ab:4354] (rev 12)
0b:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY
[14e4:4315] (rev 01)
lsmod回复：
Module Size Used by
michael_mic 12541 8
arc4 12474 4
snd_hda_codec_idt 60238 1
snd_hda_codec_hdmi 31778 1
gpio_ich 13160 0
joydev 17394 0
hid_generic 12485 0
dell_wmi 12602 0
sparse_keymap 13659 1 dell_wmi
dell_laptop 17210 0
dcdbas 14099 1 dell_laptop
coretemp 13362 0
microcode 18396 0
parport_pc 32115 0
ppdev 12850 0
rfcomm 38104 12
bnep 17791 2
r852 17906 0
sm_common 16773 1 r852
snd_hda_intel 33029 3
snd_hda_codec 116477 3 snd_hda_codec_idt,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep 13277 1 snd_hda_codec
usbhid 46054 0
hid 82511 2 hid_generic,usbhid
uvcvideo 72249 0
videobuf2_core 32212 1 uvcvideo
videodev 100265 2 uvcvideo,videobuf2_core
videobuf2_vmalloc 12757 1 uvcvideo
videobuf2_memops 13213 1 videobuf2_vmalloc
r592 17809 0
memstick 15886 1 r592
snd_pcm 81124 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
psmouse 91022 0
serio_raw 13032 0
btusb 17952 0
bluetooth 189585 24 rfcomm,bnep,btusb
nand 49703 2 r852,sm_common
nand_ids 8548 1 nand
mtd 38671 2 sm_common,nand
nand_bch 13004 1 nand
bch 21768 1 nand_bch
nand_ecc 13106 1 nand
lpc_ich 16993 0
lib80211_crypt_tkip 17276 0
mac_hid 13078 0
wl 2906598 0
snd_seq_midi 13133 0
i915 470823 3
cfg80211 181041 1 wl
lib80211 14041 2 lib80211_crypt_tkip,wl
drm_kms_helper 47459 1 i915
snd_rawmidi 25426 1 snd_seq_midi
wmi 18745 1 dell_wmi
drm 240232 4 i915,drm_kms_helper
snd_seq_midi_event 14476 1 snd_seq_midi
i2c_algo_bit 13317 1 i915
video 19070 1 i915
snd_seq 51594 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28932 2 snd_pcm,snd_seq
snd_seq_device 14138 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 62675 16 snd_hda_codec_idt,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 14636 1 snd
snd_page_alloc 14109 2 snd_hda_intel,snd_pcm
lp 17456 0
parport 40931 3 parport_pc,ppdev,lp
firewire_ohci 36110 0
firewire_core 61957 1 firewire_ohci
crc_itu_t 12628 1 firewire_core
sdhci_pci 18263 0
sdhci 32293 1 sdhci_pci
sky2 53629 0
答案1
如果您开始遇到更多问题，您可以在终端中尝试此命令。
sudo apt-get install firmware-b43-installer
它可以在一台较旧的 HP 笔记本电脑上运行。