![HP Stream 13、rtl8723be 上的 Xubuntu 18.04 中的 WiFi 信号弱(不是天线选择,它什么也不做)](https://linux22.com/image/1064804/HP%20Stream%2013%E3%80%81rtl8723be%20%E4%B8%8A%E7%9A%84%20Xubuntu%2018.04%20%E4%B8%AD%E7%9A%84%20WiFi%20%E4%BF%A1%E5%8F%B7%E5%BC%B1%EF%BC%88%E4%B8%8D%E6%98%AF%E5%A4%A9%E7%BA%BF%E9%80%89%E6%8B%A9%EF%BC%8C%E5%AE%83%E4%BB%80%E4%B9%88%E4%B9%9F%E4%B8%8D%E5%81%9A%EF%BC%89.png)
编辑:已经提到了两种解决方案,但对我来说不起作用:
更改 wifi 驱动程序上的天线选择。这对我的问题不起作用。它似乎曾经适用于 16.04 LTS,但该修复显然在 18.04 中被破坏了。这是 Xubuntu 的新安装,如果可以的话,我想继续使用 18.04。
将内核回滚到 4.15.0-32-generic。这可能是正确的方向,因为似乎 4.15.0-33 及更高版本的 RTL8723BE 驱动程序存在已知错误,但链接的解决方案适用于 Ubuntu 本身,并让用户启动到高级选项。我正在运行 Xubuntu,我的启动菜单没有高级选项。同样,这是 Xubuntu 的全新安装,所以我没有几周前的任何先前内核版本,而且我还没能弄清楚如何在 Xubuntu 发行版中尝试回滚内核。
我刚刚在我的 HP Stream 13-110ca 上安装了 Xubuntu 18.04,因为 Windows 10 需要的存储空间比 32GB SSD 更大。
我在 WiFi 方面遇到了很多困难。它有一个 rtl8723be 无线网卡,很多其他帖子都建议切换天线数量,但似乎都没有什么区别。无论我选择什么,每个选项的强度都在 -65 dbm 左右。
切换之前,WiFi 在 Windows 10 中运行良好,所以我知道天线已连接。
产品编号:P4B15UA#ABL
请指教。
提前致谢,
莎拉
以下是 inxi -Fxz 的输出:
sarah@sarah-HP-Stream-Notebook-PC-13:~$ inxi -Fxz
System: Host: sarah-HP-Stream-Notebook-PC-13 Kernel: 4.15.0-33-generic x86_64
bits: 64 gcc: 7.3.0
Desktop: Xfce 4.12.3 (Gtk 2.24.31) Distro: Ubuntu 18.04.1 LTS
Machine: Device: laptop System: HP product: HP Stream Notebook PC 13 v: Type1ProductConfigId serial: N/A
Mobo: HP model: 817D v: 39.13 serial: N/A
UEFI: Insyde v: F.1B date: 01/05/2016
Battery BAT0: charge: 35.4 Wh 100.0% condition: 35.4/35.4 Wh (100%)
model: Hewlett-Packard Primary status: Full
CPU: Dual core Intel Celeron N3050 (-MCP-)
arch: Airmont rev.3 cache: 1024 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 6400
clock speeds: max: 2160 MHz 1: 481 MHz 2: 638 MHz
Graphics: Card: Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller
bus-ID: 00:02.0
Display Server: x11 (X.Org 1.19.6 )
drivers: modesetting (unloaded: fbdev,vesa)
Resolution: [email protected]
OpenGL: renderer: Mesa DRI Intel HD Graphics 400 (Braswell)
version: 4.5 Mesa 18.0.5 Direct Render: Yes
Audio: Card Intel Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Def. Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-33-generic
Network: Card: Realtek RTL8723BE PCIe Wireless Network Adapter
driver: rtl8723be port: 1000 bus-ID: 02:00.0
IF: wlo1 state: up mac: <filter>
Drives: HDD Total Size: NA (-)
ID-1: /dev/mmcblk0 model: N/A size: 31.3GB
Partition: ID-1: / size: 29G used: 5.9G (22%) fs: ext4 dev: /dev/mmcblk0p2
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 44.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 160 Uptime: 11 min Memory: 766.1/1853.0MB
Init: systemd runlevel: 5 Gcc sys: N/A
Client: Shell (bash 4.4.191) inxi: 2.3.56
sarah@sarah-HP-Stream-Notebook-PC-13:~$
以下是 lspci; lsusb 的输出
sarah@sarah-HP-Stream-Notebook-PC-13:~$ lspci; lsusb
00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 21)
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21)
00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 21)
00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 21)
00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 21)
00:1b.0 Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 21)
00:1c.0 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 (rev 21)
00:1c.3 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #4 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 21)
00:1f.3 SMBus: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller (rev 21)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:b006 Realtek Semiconductor Corp.
Bus 001 Device 008: ID 0bb4:0ffe HTC (High Tech Computer Corp.) Desire HD (modem mode)
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 05c8:0379 Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
sarah@sarah-HP-Stream-Notebook-PC-13:~$
以下是 iwconfig 的输出
sarah@sarah-HP-Stream-Notebook-PC-13:~$ iwconfig
enp0s20u4u2 no wireless extensions.
wlo1 IEEE 802.11 ESSID:"Chester"
Mode:Managed Frequency:2.462 GHz Access Point: AC:20:2E:D4:58:08
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:on
Link Quality=44/70 Signal level=-66 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:3922 Missed beacon:0
lo no wireless extensions.
sarah@sarah-HP-Stream-Notebook-PC-13:~$