我的无线网络今天才正常工作。然后我带着我的笔记本电脑到另一个地方去工作，步行5分钟，然后WIFI适配器就完全不能用了。当盖子关闭时，计算机无法正常进入待机状态，因此笔记本电脑在背包中感觉过热。我担心热量损坏了 Wifi 适配器。
对于以下命令：
<no output>意味着运行命令时没有返回任何内容。
这是我的信息：
计算机：XMG Fusion 15 -https://bestware.com/en/xmg-fusion-15.html
操作系统信息：
lsb_release -a
Distributor ID: Pop
Description: Pop!_OS 20.04 LTS
Release: 20.04
Codename: focal
内核版本：
uname -r
5.11.0-7620-generic
检查硬件启动和驱动程序加载消息：
dmesg | grep iwlwifi
<no output>
检查内核是否检测到硬件：
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)
检查驱动模块是否已加载：
lsmod | grep iwlwifi
<no output>
列出无线设备：
rfkill list all
<no output>
列出硬件：
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
从我在这里看到的，似乎无线适配器甚至没有被列为笔记本电脑上的硬件，这表明它已损坏。
我可以做的其他解决方案是将内核升级到最新的 5.13，或将操作系统升级到 21.04。但是，我认为这些并不能解决根本问题。或者我可以要求保修，并且几周内都没有笔记本电脑。
答案1
WiFi 现在可以使用。我不知道为什么它决定现在开始工作。在它开始工作之前我所做的就是关闭计算机几个小时并在集成显卡模式下运行它。通常我将计算机设置为在混合图形模式下运行，因为运行外部显示器需要 2070 卡。以前不返回任何内容的命令现在返回正确的数据。然而这个问题让我担心可能还有更深层次的问题。我认为热量可能扰乱了无线芯片，需要时间冷却。