Wifi

在 PopOS 20.04 上未找到無線適配器硬體

  • July 10, 2021

我的無線網路今天才正常工作。然後我把我的筆記型電腦帶到另一個步行5分鐘的地方上班,然後WIFI適配器完全不工作了。合上蓋子後電腦無法正常進入待機狀態,因此筆記型電腦在背包中感覺過熱。我擔心熱量會破壞 Wifi 適配器。

對於以下命令:

  • <no output>表示執行命令時沒有返回任何內容。

這是我的資訊:

電腦:XMG Fusion 15 - https://bestware.com/en/xmg-fusion-15.html

作業系統資訊:

lsb_release -a
Distributor ID: Pop
Description:    Pop!_OS 20.04 LTS
Release:    20.04
Codename:   focal

核心版本:

uname -r
5.11.0-7620-generic

檢查硬體啟動和驅動程序載入消息:

dmesg | grep iwlwifi
<no output>

檢查核心是否檢測到硬體:

lspci | grep Network
<no output>
lspci
00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 SATA controller: Intel Corporation Cannon Lake Mobile PCH SATA AHCI Controller (rev 10)
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #17 (rev f0)
00:1b.4 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
00:1d.5 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #14 (rev f0)
00:1e.0 Communication controller: Intel Corporation Cannon Lake PCH Serial IO UART Host Controller (rev 10)
00:1f.0 ISA bridge: Intel Corporation HM470 Chipset LPC/eSPI Controller (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation TU106M [GeForce RTX 2070 Mobile] (rev a1)
01:00.1 Audio device: NVIDIA Corporation TU106 High Definition Audio Controller (rev a1)
01:00.2 USB controller: NVIDIA Corporation TU106 USB 3.1 Host Controller (rev a1)
01:00.3 Serial bus controller [0c80]: NVIDIA Corporation TU106 USB Type-C UCSI Controller (rev a1)
02:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 2C 2018] (rev 06)
03:00.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 2C 2018] (rev 06)
03:01.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 2C 2018] (rev 06)
03:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge 2C 2018] (rev 06)
04:00.0 System peripheral: Intel Corporation JHL7540 Thunderbolt 3 NHI [Titan Ridge 2C 2018] (rev 06)
06:00.0 USB controller: Intel Corporation JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 2C 2018] (rev 06)
3b:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
3d:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)

檢查是否載入了驅動模組:

lsmod | grep iwlwifi
<no output>

列出無線設備:

rfkill list all
<no output>

列出硬體:

sudo lshw –short | grep network
/0/100/1d.5/0        enp61s0         network        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
/2                   virbr0-nic      network        Ethernet interface
/3                   veth4c078e5     network        Ethernet interface
/4                   veth5f7e22d     network        Ethernet interface

從我在這裡看到的情況來看,無線適配器似乎甚至沒有被列為筆記型電腦上的硬體,這表明它已經壞了。

我可以做的其他解決方案是將核心升級到最新的 5.13,或者將作業系統升級到 21.04。但是,我認為這些不會解決根本問題。或者我可以打電話給我的保修,幾週沒有筆記型電腦。

WiFi現在正在工作。我不知道為什麼它決定現在開始工作。在它開始工作之前我所做的是關閉電腦幾個小時並在集成圖形模式下執行它。通常我將電腦設置為在混合圖形模式下執行,因為需要 2070 卡來執行外接顯示器。之前沒有返回任何內容的命令現在返回正確的數據。然而,這個問題讓我擔心可能存在更深層次的問題。我認為熱量可能與無線晶片混淆,需要時間冷卻。

引用自:https://unix.stackexchange.com/questions/657340