Yog*_*tba 3 wireless networking hp realtek-wireless 20.04
我有惠普笔记本电脑。大多数情况下,我的 wifi 在启动后 2-3 小时后无法连接到任何网络(显示不可用且未找到 wifi 适配器)。通过多次重启系统即可解决此问题。有时wifi已连接但无法访问互联网。所以尝试了这个方法,但它不起作用(我假设是因为更新了 20.04 的内核)。
我的输出lspci -v | grep -i network
0d:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter
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输出lspci -knn | grep Net -A3; rfkill list
0d:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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dmesg | grep rtl在 Windows 中禁用快速启动后的输出
[ 13.082292] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[ 13.990240] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[ 13.990267] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[ 15.016968] rtl8723be: Using firmware rtlwifi/rtl8723befw_36.bin
[ 15.019349] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 15.020078] rtlwifi: rtlwifi: wireless switch is on
[ 15.062183] rtl8723be 0000:0d:00.0 wlp13s0: renamed from wlan0
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输出grep iwl /etc/modprobe.d/*
/etc/modprobe.d/iwlwifi.conf:# /etc/modprobe.d/iwlwifi.conf
/etc/modprobe.d/iwlwifi.conf:# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
/etc/modprobe.d/iwlwifi.conf:# microcode file installed on the system. When removing iwlwifi, first
/etc/modprobe.d/iwlwifi.conf:# remove the iwl?vm module and then iwlwifi.
/etc/modprobe.d/iwlwifi.conf:remove iwlwifi \
/etc/modprobe.d/iwlwifi.conf:(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
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我的解决方案是使用有线连接(通过 USB/RJ-45 集线器和以太网电缆)访问互联网,以便下载并安装 WiFi 驱动程序。
因此,当您连接时:
如果您在安装 Ubuntu 时尚未启用“安全启动”/MOK,则必须执行此操作,因此接下来的步骤将适用:
从 Ubuntu 20.04 开始,您需要在 Ubuntu 安装期间启用安全启动才能访问这些“专有”驱动程序
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