Ubuntu20.04.5LTS上带有驱动程序的慢速互联网连接: rtw_8821ce

Question

在使用WiFi时，我的互联网连接有问题。我的电脑品牌是HP使用Ubuntu20.04.5LTS和内核5.15.0-52通用.目前，互联网的速度总是低于8 Mbps，而其他设备的速度总是在20 Mbps以上。下面是与我的笔记本电脑相关的信息。我真的希望有人能帮我解决这个缓慢的连接问题。

    lspci -nnk | grep -iA3 net && iwconfig
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
    DeviceName: Realtek Wireless LAN + BT
    Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:884d]
    Kernel driver in use: rtw_8821ce
    Kernel modules: rtw_8821ce, 8821ce
02:00.0 Non-Volatile memory controller [0108]: Kingston Technology Company, Inc. Device [2646:5010] (rev 03)
lo        no wireless extensions.

wlo1      IEEE 802.11  ESSID:"XXXX"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 60:D7:55:7C:5F:D4   
          Bit Rate=65 Mb/s   Tx-Power=19 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=27/70  Signal level=-83 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:2882   Missed beacon:0

uname -r
5.15.0-52-generic

    lsmod | grep 8821
8821ce               2068480  0
rtw_8821ce             16384  0
rtw_8821c              94208  1 rtw_8821ce
rtw_pci                28672  1 rtw_8821ce
rtw_core              286720  2 rtw_8821c,rtw_pci
cfg80211              970752  3 rtw_core,mac80211,8821ce

sudo dkms status
[sudo] password for x: 
rtl8821ce, 5.5.2.1: added
rtl8821ce, v5.5.2_34066.20200325, 5.15.0-52-generic, x86_64: installed (WARNING! Diff between built and installed module!)

提前感谢你们的帮助。我已经搜索了近3天的信息和疑难解答，然后才决定发布这个问题。如有需要，可随时索取更多资料。

额外司机的形象

结果为

sudo apt install rtl8821ce-dkms
Deleting module version: 5.5.2.1
completely from the DKMS tree.
------------------------------
Done.
Loading new rtl8821ce-5.5.2.1 DKMS files...
Building for 5.15.0-50-generic 5.15.0-52-generic
Building initial module for 5.15.0-50-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/rtl8821ce-dkms.
0.crash'
Error! Bad return status for module build on kernel: 5.15.0-50-generic (x86_64)
Consult /var/lib/dkms/rtl8821ce/5.5.2.1/build/make.log for more information.
dpkg: error processing package rtl8821ce-dkms (--configure):
 installed rtl8821ce-dkms package post-installation script subprocess returned e
rror exit status 10
Errors were encountered while processing:
 rtl8821ce-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)

Answer 1

我终于想出了解决这个问题的办法。

首先，我们需要使用以下命令将rtw88_8821ce列入黑名单：

sudo nano /etc/modprobe.d/blacklist.conf

然后添加

黑名单rtw88_8821ce

到列表的底部页。然后按Ctrl+O保存，然后按Ctrl+x退出

由于该驱动程序被列入黑名单，我们将没有wifi适配器，也不会找到wifi。我尝试使用电话USB绑定连接到internet，然后运行以下命令：

wget http://archive.ubuntu.com/ubuntu/pool/universe/r/rtl8821ce/rtl8821ce-dkms_5.5.2.1-0ubuntu10_all.deb
sudo dpkg -i rtl8821ce-dkms_5.5.2.1-0ubuntu10_all.deb
sudo modprobe rtl8821ce

注:任何人都可以编辑和修改我的答案，因为我不擅长解释它，但我太高兴知道我的缓慢连接问题已经解决。