重新啟動後 Wi-Fi 無法工作“設備未就緒”

重新啟動後 Wi-Fi 無法工作“設備未就緒”

我有一台 HP 筆記型電腦,Ubuntu 16.04 與 Windows 10 一起安裝。我收到一條訊息“設備未準備好”。但是,如果在啟動 Ubuntu 之前我先運行 Windows,重新啟動它,然後運行 Ubuntu,則 wi-fi 會再次工作。或者,如果我關閉電腦並重新啟動,它會再次工作,但如果我只重新啟動,則不會。

$ sudo lshw -c network
*-network               
   description: Wireless interface
   product: RT3290 Wireless 802.11n 1T/1R PCIe
   vendor: Ralink corp.
   physical id: 0
   bus info: pci@0000:07:00.0
   logical name: wlo1
   version: 00
   serial: 70:18:8b:5e:7d:bb
   width: 32 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet 
physical wireless
   configuration: broadcast=yes driver=rt2800pci driverversion=4.10.0-
38-generic firmware=0.37 ip=192.168.0.103 latency=0 link=yes 
multicast=yes wireless=IEEE 802.11
   resources: irq:16 memory:c3510000-c351ffff
*-network
   description: Ethernet interface
   product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:08:00.0
   logical name: eno1
   version: 07
   serial: a0:48:1c:11:5d:4d
   size: 10Mbit/s
   capacity: 100Mbit/s
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
   resources: irq:27 ioport:3000(size=256) memory:c3404000-c3404fff memory:c3400000-c3403fff memory:c3410000-c341ffff

$ rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

答案1

每則評論升級到最新內核(4.14 截至寫下該字)幫助了。

我相信我在某處讀過有關這個問題的內容(部落格文章或錯誤追蹤器),但找不到來源。 IIRC 問題是一些硬體暫存器應該在重新啟動時下降到某個值,但實際上沒有,這導致了問題。

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