我最近全新安装了 xubuntu 16.04.2，现在无线似乎会随机停止工作。到目前为止，它似乎是在退出挂起后的会话期间发生的，但不是刚退出后，通常是一两个小时后。重新启动可以暂时解决问题。还存在挂起和挂起后鼠标光标消失的问题。 sudo lshw C- network显示无线驱动程序已禁用：
*-network DISABLED
description: Wireless interface
product: PRO/Wireless 3945ABG [Golan] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0c:00.0
logical name: wlp12s0
version: 02
serial: 00:1f:3c:7d:32:5d
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 driverversion=4.8.0-41-generic firmware=15.32.2.9 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:29 memory:fe8ff000-fe8fffff
iwconfig 说：
lo no wireless extensions.
wlp12s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
enp9s0 no wireless extensions.
连接断开后， dmesg 打印出了一些警告/错误...我真的不知道这些意味着什么：
[22706.141103] WARNING: CPU: 1 PID: 5083 at /build/linux-hwe-bZV_oZ/linux-hwe-4.8.0/net/mac80211/driver-ops.c:39 drv_stop+0xfa/0x100 [mac80211]
[22706.141104] Modules linked in: hid_generic usbhid hid ccm gpio_ich dell_rbtn dell_wmi dell_laptop sparse_keymap dell_smbios dcdbas dell_smm_hwmon arc4 snd_hda_codec_hdmi iwl3945 iwlegacy snd_hda_codec_idt mac80211 snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core coretemp snd_hwdep cfg80211 snd_pcm snd_seq_midi kvm snd_seq_midi_event snd_rawmidi snd_seq pcmcia snd_seq_device irqbypass yenta_socket snd_timer pcmcia_rsrc snd pcmcia_core joydev input_leds soundcore lpc_ich serio_raw shpchp mac_hid parport_pc ppdev lp parport autofs4 algif_skcipher af_alg dm_crypt i915 psmouse firewire_ohci pata_acpi i2c_algo_bit firewire_core drm_kms_helper crc_itu_t tg3 syscopyarea sysfillrect sysimgblt video fb_sys_fops wmi drm ptp pps_core
[22706.141138] CPU: 1 PID: 5083 Comm: kworker/1:1 Tainted: G W 4.8.0-41-generic #44~16.04.1-Ubuntu
[22706.141139] Hardware name: Dell Inc. Latitude D630 /0KU184, BIOS A09 04/03/2008
[22706.141152] Workqueue: events_freezable ieee80211_restart_work [mac80211]
[22706.141154] 0000000000000286 000000004e3454f5 ffff916afb0f7b78 ffffffff8622e043
[22706.141156] 0000000000000000 0000000000000000 ffff916afb0f7bb8 ffffffff85e8313b
[22706.141159] 00000027fb0f7b80 ffff916afb0b0700 ffff916afb0b0700 0000000000000000
[22706.141161] Call Trace:
[22706.141163] [<ffffffff8622e043>] dump_stack+0x63/0x90
[22706.141165] [<ffffffff85e8313b>] __warn+0xcb/0xf0
[22706.141167] [<ffffffff85e8326d>] warn_slowpath_null+0x1d/0x20
[22706.141181] [<ffffffffc081999a>] drv_stop+0xfa/0x100 [mac80211]
[22706.141199] [<ffffffffc084db33>] ieee80211_stop_device+0x43/0x50 [mac80211]
[22706.141216] [<ffffffffc082f5c2>] ieee80211_do_stop+0x4c2/0x800 [mac80211]
[22706.141218] [<ffffffff8669b46e>] ? _raw_spin_unlock_bh+0x1e/0x20
[22706.141220] [<ffffffff865abbab>] ? dev_deactivate_many+0x20b/0x250
[22706.141236] [<ffffffffc082f91a>] ieee80211_stop+0x1a/0x20 [mac80211]
[22706.141239] [<ffffffff86579af9>] __dev_close_many+0x99/0x100
[22706.141240] [<ffffffff86579bf1>] dev_close_many+0x91/0x140
[22706.141242] [<ffffffff8657bf3a>] dev_close.part.82+0x4a/0x70
[22706.141244] [<ffffffff8657bf7a>] dev_close+0x1a/0x20
[22706.141257] [<ffffffffc0788d35>] cfg80211_shutdown_all_interfaces+0x45/0xb0 [cfg80211]
[22706.141275] [<ffffffffc084b4d8>] ieee80211_handle_reconfig_failure+0x98/0xb0 [mac80211]
[22706.141293] [<ffffffffc084dbd6>] ieee80211_reconfig+0x96/0xfb0 [mac80211]
[22706.141307] [<ffffffffc081620e>] ieee80211_restart_work+0x8e/0xc0 [mac80211]
[22706.141309] [<ffffffff85e9d88b>] process_one_work+0x16b/0x4a0
[22706.141310] [<ffffffff85e9dc0b>] worker_thread+0x4b/0x500
[22706.141312] [<ffffffff85e9dbc0>] ? process_one_work+0x4a0/0x4a0
[22706.141313] [<ffffffff85e9dbc0>] ? process_one_work+0x4a0/0x4a0
[22706.141315] [<ffffffff85ea3fa8>] kthread+0xd8/0xf0
[22706.141317] [<ffffffff8669ba1f>] ret_from_fork+0x1f/0x40
[22706.141318] [<ffffffff85ea3ed0>] ? kthread_create_on_node+0x1e0/0x1e0
[22706.141319] ---[ end trace 7905e77c96f1b6a9 ]---
[22815.593040] IPv6: ADDRCONF(NETDEV_UP): wlp12s0: link is not ready
[22816.143874] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[22816.143880] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[22816.190603] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[22816.190606] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[22816.237326] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[22816.237328] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[22816.284047] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[22816.284050] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[22816.330764] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[22816.330766] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[22816.369691] iwl3945 0000:0c:00.0: Unable to initialize device after 5 attempts.
希望这些能对你有帮助。感谢你的帮助。