更新后无法连接到 wifi

更新后无法连接到 wifi

在 ubuntu 16.04 上。
当我运行时,lspci -nnk | grep -iA2 net我得到:

01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:383a]
    Kernel driver in use: r8169
    Kernel modules: r8169
02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)
    Subsystem: Lenovo Device [17aa:4035]
    Kernel modules: ath10k_pci

$ rfkill list
0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

按照要求:

$ uname -a; dmesg | grep ath
Linux Yinon 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

版本编辑:

$ sudo modprobe ath10k_pci
modprobe: ERROR: could not insert 'ath10k_pci': Required key not available
$ dmesg | grep ath
[    1.509368]  [<ffffffff81081212>] warn_slowpath_common+0x82/0xc0
[    1.509370]  [<ffffffff810812ac>] warn_slowpath_fmt+0x5c/0x80

以太网运行良好。
我怎样才能找出问题所在?

答案1

这似乎是解决168c:0042设备问题的通用方法,尽管对我来说不起作用:

更新您的设备固件:

wget http://mirrors.kernel.org/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.161_all.deb 
sudo dpkg -i linux-firmware*.deb

更新后,重新启动并让我们知道结果

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