重启Ubuntu 16.04后无WiFi或启用WiFi选项
请帮我解决使用笔记本电脑的WiFi问题。 我有一台运行在Ubuntu 16.04 LTS上的戴尔XPS L521X。 我的WiFi卡是Intel Dual Band Wireless-AC 7260 。 我的WiFi可以正常工作，但在随机冷启动或重启时，WiFi不起作用（空心WiFi图标，没有启用WiFi选项可用）。
运行sudo service network-manager restart使其再次工作，但我不想每次重新启动计算机时都这样做。 有任何想法如何解决这个问题？
以防万一，这是我在运行一些命令检查状态时得到的结果：
han@XPS:~$ dmesg | grep iwl [ 3.714166] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-7260-17.ucode failed with error -2 [ 3.716989] iwlwifi 0000:08:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm [ 3.753941] iwlwifi 0000:08:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144 [ 3.754221] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled [ 3.754835] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled [ 3.977124] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' [ 3.978658] iwlwifi 0000:08:00.0 wlp8s0: renamed from wlan0 [ 4.192308] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled [ 4.192568] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled [ 4.394290] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled [ 4.394697] iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled han@XPS:~$ modinfo iwlwifi | grep 7260 firmware: iwlwifi-7260-13.ucode han@XPS:~$ sudo lshw -c network *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:07:00.0 logical name: enp7s0 version: 07 serial: f0:1f:af:32:ce:79 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:29 ioport:2000(size=256) memory:d2404000-d2404fff memory:d2400000-d2403fff *-network description: Wireless interface product: Wireless 7260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:08:00.0 logical name: wlp8s0 version: 73 serial: 7c:5c:f8:68:e7:e6 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-22-generic firmware=16.242414.0 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn resources: irq:34 memory:d2600000-d2601fff han@XPS:~$ sudo service network-manager restart han@XPS:~$ sudo lshw -c network *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:07:00.0 logical name: enp7s0 version: 07 serial: f0:1f:af:32:ce:79 size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:29 ioport:2000(size=256) memory:d2404000-d2404fff memory:d2400000-d2403fff *-network description: Wireless interface product: Wireless 7260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:08:00.0 logical name: wlp8s0 version: 73 serial: 7c:5c:f8:68:e7:e6 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-22-generic firmware=16.242414.0 ip=192.168.1.9 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:34 memory:d2600000-d2601fff
提前致谢！
这是一种快速的hacky方式来实现您想要的结果。 使用文本编辑器打开~/.bashrc文件并滚动到底部并添加行echo "your_password" | sudo service network-manager restart echo "your_password" | sudo service network-manager restart 。 每次打开计算机时都会自动运行。 但是，一个不好的副作用是每次打开一个新的终端窗口时都会运行它。 另一个更优雅的选择是将它放在像这样的脚本中，因此它只在启动时运行。