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Ubuntu 20.04 上的 Realtek Wifi 连接在几分钟或几小时后断开

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Ubuntu 20.04 上的 Realtek Wifi 连接在几分钟或几小时后断开

大约两周前，我在我的计算机上全新安装了 Ubuntu 20.04，几天后，WiFi 连接突然在几分钟/有时几小时后断开。WiFi 适配器坏了。这可能是驱动程序问题吗？以太网工作正常。

我在用着driver=rtw_pci driverversion=5.4.0-45-generic，RTL8822BE 802.11a/b/g/n/ac WiFi adapter

   $ ip address show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd <MAC address>
inet 127.0.0.1/8 scope host lo
   valid_lft forever preferred_lft forever
inet6 ::1/128 scope host 
   valid_lft forever preferred_lft forever
2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether <MAC 'enp0s31f6' [IF1]> brd <MAC address>
inet 192.168.0.200/24 brd 192.168.0.255 scope global dynamic noprefixroute enp0s31f6
   valid_lft 3580sec preferred_lft 3580sec
inet6 fe80::a820:bdf9:daac:9461/64 scope link noprefixroute 
   valid_lft forever preferred_lft forever
3: wlp6s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether <MAC 'wlp6s0' [IF2]> brd <MAC address>
4: vmnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether <MAC 'vmnet1' [IF3]> brd <MAC address>
inet 172.16.1.1/24 brd 172.16.1.255 scope global vmnet1
   valid_lft forever preferred_lft forever
inet6 fe80::<IP6 'vmnet1' [IF3]>/64 scope link 
   valid_lft forever preferred_lft forever
5: vmnet8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether <MAC 'vmnet8' [IF4]> brd <MAC address>
inet 192.168.88.1/24 brd 192.168.88.255 scope global vmnet8
   valid_lft forever preferred_lft forever
inet6 fe80::<IP6 'vmnet8' [IF4]>/64 scope link 
   valid_lft forever preferred_lft forever


   $ dmesg | tail
[  120.033618] rtw_pci 0000:06:00.0: failed to read ASPM, ret=-5
[  122.336826] rtw_pci 0000:06:00.0: failed to poll offset=0x5 mask=0x2 value=0x0
[  122.336838] rtw_pci 0000:06:00.0: mac power on failed
[  122.336839] rtw_pci 0000:06:00.0: failed to power on mac
[  122.336840] rtw_pci 0000:06:00.0: leave idle state failed
[  122.336992] rtw_pci 0000:06:00.0: failed to leave ips state
[  122.336994] rtw_pci 0000:06:00.0: failed to leave idle state

答案1

这不是一个答案，而是一个实验。请尝试：

sudo -i
echo "options rtw88 lps_deep_mode=0"  >  /etc/modprobe.d/rtw88.conf
exit

重启。

我怀疑掉线和无法正常恢复的原因是由于省电深度睡眠实施不完善造成的。

参考：https://patchwork.kernel.org/patch/11146427/

https://patchwork.kernel.org/patch/11146433/

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