Wifi突然掉到Ubuntu 22.04上

Question

我刚刚安装了Ubuntu22.04，我对Ubuntu/Linux非常陌生。因此，我的系统上的wifi连接，但不断下降，即使我坐在6英尺宽的路由器。当我启动我的系统时，我已经在我的HP 15-db1xxx上安装了它。启动时使用Wifi，无线信号最初是健康的，但在4到5分钟后的使用后的Wifi信号.信号波动发生在我使用互联网和我断开连接，例如，页面将停止加载，我一直按刷新按钮，直到它开始工作。这已经变得非常烦人，并一直阻碍我的工作。我在Windows 10中没有遇到这个问题，它是与Ubuntu22.04一起双引导的。

$ 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@0000:02:00.0
       logical name: eno1
       version: 15
       serial: 00:68:eb:7c:74:81
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.15.0-30-generic firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:40 ioport:3000(size=256) memory:c0904000-c0904fff memory:c0900000-c0903fff
  *-network
       description: Wireless interface
       product: RTL8821CE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlo1
       version: 00
       serial: c0:e4:34:57:65:97
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtw_8821ce driverversion=5.15.0-30-generic firmware=N/A ip=192.168.0.20 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:73 ioport:2000(size=256) memory:c0800000-c080ffff

以下是有关我的计算机的PCI信息

sudo lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0]
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
04:00.0 Non-Volatile memory controller: Silicon Motion, Inc. SM2263EN/SM2263XT SSD Controller (rev 03)
05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c2)
05:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller
05:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor
05:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
05:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1
05:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor
05:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) HD Audio Controller
05:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver

以下是可能有帮助的膝上型计算机信息：

sudo lshw -C system
salman-ryzen                
    description: Notebook
    product: HP Laptop 15-db1xxx (8LX89PA#ABJ)
    vendor: HP
    version: Type1ProductConfigId
    serial: CND9461SXT
    width: 64 bits
    capabilities: smbios-3.1.1 dmi-3.1.1 smp vsyscall32
    configuration: boot=normal chassis=notebook family=103C_5335KV HP Notebook sku=8LX89PA#ABJ uuid=64de2ba6-0a01-ea11-8102-0068eb7c7481
  *-pnp00:00
       product: PnP device PNP0c02
       physical id: 0
       capabilities: pnp
       configuration: driver=system
  *-pnp00:01
       product: PnP device PNP0b00
       physical id: 1
       capabilities: pnp
       configuration: driver=rtc_cmos
  *-pnp00:04
       product: PnP device PNP0c02
       physical id: 4
       capabilities: pnp
       configuration: driver=system
  *-pnp00:05
       product: PnP device PNP0c01
       physical id: 5
       capabilities: pnp
       configuration: driver=system

这个问题把我逼疯了，扰乱了工作流程。这个问题在Windows 10上从来没有发生过。我已经尝试过为Wifi驱动程序克隆https://github.com/tomaspinho/rtl8821ce并安装它，但是这也不起作用。

我也尝试过这些解决方案-- Ubuntu22.04LTS Wi频繁断开 Ubuntu18.04LTS上的WiFi随机断开

他们也没有为我工作过。请帮帮我！

编辑:所以我卸载了Ubuntu22.04，用Kernel5.10-14做了一个干净的MX-Linux 21安装，wifi运行得非常完美。这个问题早已过去，但我认为我们必须在较新的内核上报告这个错误。我试着在Ubuntu表格5.15到5.17上更新内核，但没有成功！无论如何，我认为Ubuntu22.04仍然是相当新的，Canonical正在致力于修复这些bug。谢谢你们的帮助，真的很感激。

Answer 1

这不是你的想象。我们很多人都有同样的问题。见这篇文章：

Wifi断线

Answer 2

这里的问题是，老的内核根本没有这个wifi卡的驱动程序，而更新的内核(5.15+)有一个内置的驱动程序，这个驱动程序不是很好。因此，如果您试图安装您自己的，更好的驱动程序，它将与内置的一个，并造成更多的问题。

解决方案是将新内核中的内置驱动程序列入黑名单，并安装自己的驱动程序。参见步骤这里