![15.04 暂停后没有 wifi](https://linux22.com/image/981680/15.04%20%E6%9A%82%E5%81%9C%E5%90%8E%E6%B2%A1%E6%9C%89%20wifi%20.png)
在 15.04 上挂起后,我的 wifi 无法正常工作。我可以通过点击菜单栏中的 wifi 图标(以及启用 wifi 选项)来成功,但我想使用脚本来自动执行该过程。以下是我的尝试
1)创建可执行的bash脚本,/etc/pm/sleep.d/10_resume_wifi
内容如下
#!/bin/sh
case "$1" in
hibernate|suspend) ;;
thaw|resume)
nmcli r wifi off && nmcli r wifi on ;;
esac
2)创建/etc/system.d/system/wifi-resume.service
内容如下的可执行文件
[Unit]
Description=Restart wifi after waking up
After=suspend.target
[Service]
Type=simple
ExecStart=-/etc/pm/sleep.d/10_resume_wifi
[Install]
WantedBy=suspend.target
然后运行sudo systemctl enable wifi-resume.service
这不起作用,从dmesg
暂停状态恢复后,我收到以下几行
[11168.786104] cfg80211: World regulatory domain updated:
[11168.786111] cfg80211: DFS Master region: unset
[11168.786113] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[11168.786119] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[11168.786124] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[11168.786128] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[11168.786133] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[11168.786137] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[11168.968257] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[11169.004818] ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[11169.006600] ata3.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[11169.009053] ata3.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[11169.009061] ata3.00: configured for UDMA/100
[11169.200846] firewire_core 0000:04:00.0: rediscovered device fw0
[11171.088442] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[11171.089310] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[11171.090296] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[11171.090469] ata1.00: configured for UDMA/100
[11171.615861] ERROR @wl_cfg80211_scan : WLC_SCAN error (-22)
点击进入 wifi 后,我得到的输出略有不同dmesg
[11331.635796] cfg80211: Calling CRDA for country: US
[11331.639456] cfg80211: Regulatory domain changed to country: US
[11331.639465] cfg80211: DFS Master region: FCC
对于为什么基于脚本的方法不起作用,您有什么建议吗?我是新手,所以可能会出现一些错误。提前谢谢!
答案1
经过进一步挖掘,我发现了一个脚本(发布这里),用于在挂起后将我的计算机连接到 wifi。简而言之,我创建了/etc/systemd/system/wifi-resume.service
包含以下内容的可执行脚本:
[Unit]
Description=Local system resume actions
After=suspend.target
[Service]
Type=oneshot
ExecStart=/bin/systemctl restart network-manager.service
[Install]
WantedBy=suspend.target
并运行命令sudo systemctl enable wifi-resume.service
非常感谢 Sean 提供的解决方案。
答案2
解决方案对我来说很有效:
sudo touch /etc/pm/sleep.d/10_restart_network_manager
sudo chmod +x /etc/pm/sleep.d/10_restart_network_manager
sudo gedit /etc/pm/sleep.d/10_restart_network_manager
将此代码粘贴到文件中:
#!/bin/sh
case $1 in
resume|thaw)
sudo /bin/systemctl restart network-manager.service
;;
esac
答案3
经过多次尝试,我终于找到了解决方案。在 下创建一个可执行文件/etc/pm/sleep.d/
,并将其命名为 ie 10_resume_wifi
,如下所示:
sudo touch /etc/pm/sleep.d/10_resume_wifi
sudo chmod +x /etc/pm/sleep.d/10_resume_wifi
sudo gedit /etc/pm/sleep.d/10_resume_wifi
将此代码粘贴到文件中:
#!/bin/sh
case $1 in
suspend|suspend_hybrid|hibernate)
sudo nmcli n off
;;
resume|thaw)
sudo nmcli n on
;;
esac
保存并关闭文件,就这样。
这是唯一始终有效的解决方案。 笔记:我发现的其他解决方案使用了旧版本的命令行。