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Thread: Ubuntu 20.04 WiFi RTL8723de very slow

  1. #1
    Join Date
    Feb 2017
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    11

    Ubuntu 20.04 WiFi RTL8723de very slow

    I know with Ubuntu 18.04 I was able to select an antenna to use that would speed up my WiFi connection. Is there any way that can be done with the 20.04 system?ThanksGary

  2. #2
    Join Date
    May 2013
    Location
    Galiza
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    1,910
    Distro
    Ubuntu

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    Doesn't the same command work?

  3. #3
    Join Date
    Feb 2017
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    11

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    Tried this with a reboot each time with no change.
    echo "options rtl8723de ant_sel=3" | sudo tee /etc/modprobe.d/rtl8723de.confAlso try 1, 2, 3, or 4 to see which works best.

  4. #4
    Join Date
    May 2014
    Location
    /home
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    8,800
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    Please see the wireless script link in my signature and post results. From what I have seen the extended branch of lwfinger's rtlwifi-new github site doesn't compile in 20.04 and the kernel driver used is rtwpci and that doesn't have an antenna select parameter

  5. #5
    Join Date
    Feb 2017
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    11

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    See attached file.
    Attached Files Attached Files

  6. #6
    Join Date
    May 2014
    Location
    /home
    Beans
    8,800
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    See if it is better after disabling wifi power management with
    Code:
    sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
    systemctl restart network-manager.service

  7. #7
    Join Date
    Feb 2017
    Beans
    11

    Re: Ubuntu 20.04 WiFi RTL8723de very slow

    Thank you Jeremy. That seems to have fix things. I've marked this as solved.

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