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Thread: wireless not working after installing ubuntu 18.04

  1. #1
    Join Date
    May 2018
    Beans
    9

    wireless not working after installing ubuntu 18.04

    i have installed Ubuntu 18.04 on My Labtop but after installing, the wireless didn't work. how can i solve this issue?
    Laptop HP : 15-bw054sa
    Realtek Radio : RTL8723DE

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    28,830
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: wireless not working after installing ubuntu 18.04

    Thread moved to Networking & Wireless for a more appropriate fit.

    Hi, please click on the wireless script in my signature, follow the directions for running it and posting the results back here using the pastebin link created.

  3. #3
    Join Date
    May 2018
    Beans
    9

    Re: wireless not working after installing ubuntu 18.04

    Hi Wildanne39,
    Thanks for your quick reply, please find the wireless info

    Code:
    #!/bin/bash
    #
    # Copyright (c) 2012
    #
    # Authors: Wild Man, Krytarik
    # Helpers: chili555
    #
    # This script gathers the infos necessary for troubleshooting a wireless
    # connection and saves them in a text file, wrapping it in an archive if it
    # exceeds the 19.5 kB size limit for ".txt" attachments on the Ubuntu Forums.
    #
    ##############################################################################
    #
    # This program is free software: you can redistribute it and/or modify
    # it under the terms of the GNU General Public License as published by
    # the Free Software Foundation, either version 3 of the License, or
    # (at your option) any later version.
    #
    # This program is distributed in the hope that it will be useful,
    # but WITHOUT ANY WARRANTY; without even the implied warranty of
    # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    # GNU General Public License for more details.
    #
    # You should have received a copy of the GNU General Public License
    # along with this program.  If not, see <http://www.gnu.org/licenses/>.
    #
    
    SCRIPTDATE="2018-01-10 21:04 +0100"
    FILEBASE="wireless-info"
    OUTPUTDIR="$PWD"
    OUTPUTDIRFB="/tmp"
    
    MODMATCHES="(air|ar5|at7|ath[^3]?|b43|bcma|brcm|carl|ipw|iwl|ndis|r(818|8192[eu]|871|92su)|8(188|189|192|723|812)[acde][esu]|rt[23567]|rtl|ssb|wl|(cfg|mac)80211)"
    LSMODMATCHES="(wmi|(dell|ideapad)[-_]laptop)"
    IFACEMATCHES="(wlan[0-9]|eth[0-9])"
    DMESGMATCHES="(firmware|[nN]etwork)"
    NMPROFMATCHES="\(\[connection\]\|id=\|type=\|permissions=\|autoconnect=\|\[802-11-wireless\]\|\[wifi\]\|ssid=\|bssid=\|mac-address\(-blacklist\)\?=\|mtu=\|\[802-1x\]\|[[:graph:]]*ca-certs\?=\|\[ipv[46]\]\|method=\)"
    
    DMESGEXCL="apparmor|(cfg|mac)80211"
    MODINFOEXCL="alias"
    MODPROBEXCL="(alsa-base|blacklist-(firewire|framebuffer|modem|oss|watchdog)|fglrx|nvidia|fbdev|bumblebee)"
    PMUTILSEXCL="/etc/pm/(power.d/(95hdparm-apm|intel-audio-powersave|sata_alpm)|sleep.d/(10_grub-common|10_unattended-upgrades.*|novatel_3g.*))"
    
    NETMGRNAMES=("NetworkManager" "Wicd" "ConnMan")
    NETMGRPATHS=("/usr/sbin/NetworkManager" "/usr/sbin/wicd" "/usr/sbin/connmand")
    DEC2BI=({0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1})
    DEC2HEX=($(printf "%02x " {0..255}))
    
    export LANG="en_US.UTF-8"
    export LANGUAGE="en_US:en"
    export LC_ALL="en_US.UTF-8"
    
    if [ -t 0 ]; then
        DIALOGAPP="terminal"
        DIALOGBREAK=" "
        TERMOUT="yes"
    elif [ -x /usr/bin/zenity ]; then
        DIALOGAPP="zenity"
        DIALOGBREAK="\n"
    elif [ -x /usr/bin/kdialog ]; then
        DIALOGAPP="kdialog"
        DIALOGBREAK="\n"
    else
        exit 1
    fi
    
    if [ -t 0 ]; then
        SUDO="sudo"
    elif [ -x /usr/bin/pkexec ]; then
        SUDO="pkexec"
    elif [ -x /usr/bin/gksudo ]; then
        SUDO="gksudo"
        GKSUDO="yes"
    elif [ -x /usr/bin/kdesudo ]; then
        SUDO="kdesudo"
        KDESUDO="yes"
        KDESUDOCMT=" needs administrative privileges. Please enter your password."
    fi
    
    dialog_info () {
        case $DIALOGAPP in
        terminal)
            printf "%b\n" "$1"
            ;;
        zenity)
            zenity --info --text="$1"
            ;;
        kdialog)
            kdialog --msgbox "$1"
            ;;
        esac
    }
    
    dialog_error () {
        case $DIALOGAPP in
        terminal)
            printf "%b\n" "$1" >&2
            ;;
        zenity)
            zenity --error --text="$1"
            ;;
        kdialog)
            kdialog --error "$1"
            ;;
        esac
    }
    
    dialog_question () {
        case $DIALOGAPP in
        terminal)
            local INPUT
            read -r -p "$1 [Y/n]: " INPUT
            echo "${INPUT,,}"
            ;;
        zenity)
            zenity --question --text="$1" || echo "no"
            ;;
        kdialog)
            kdialog --yesno "$1" || echo "no"
            ;;
        esac
    }
    
    ip6-mac () {
        for MAC in "$@"; do
        OCT1BI=${DEC2BI[0x${MAC:0:2}]}
        OCT1BI7=$((${OCT1BI:6:1} - 1))
        OCT1BIM="${OCT1BI:0:6}${OCT1BI7#-}${OCT1BI:7}"
        IP6S+=${IP6S:+$'\n'}"${DEC2HEX[2#$OCT1BIM]}${MAC:3:2}:${MAC:6:2}ff:fe${MAC:9:2}:${MAC:12:2}${MAC:15:2}"
        done
        sed 's/\(^\|:\)0\+\([[:alnum:]]\)/\1\2/g;s/^\([0:]\+\)/\\(::\\|\1\\)/' <<< "$IP6S"
    }
    
    exec 3>&1 4>&2
    exec 1> "$OUTPUTDIR/$FILEBASE.txt" || {
        dialog_error "${TERMOUT+\n}Cannot write output file in \"$OUTPUTDIR\",${DIALOGBREAK}trying in \"$OUTPUTDIRFB\" instead.${TERMOUT+\n}"
        OUTPUTDIR="$OUTPUTDIRFB"
        exec 1> "$OUTPUTDIR/$FILEBASE.txt" || {
        dialog_error "${TERMOUT+\n}Cannot write output file in \"$OUTPUTDIR\" either, aborting.${TERMOUT+\n}"
        exit 1
        }
    }
    exec 2>&1
    
    printf "\n########## wireless info START ##########\n\n"
    REPORTDATE=$(date +"%d %b %Y %H:%M %Z %z")
    SCRIPTDATE=$(date -u -d "$SCRIPTDATE" +"%d %b %Y %H:%M %Z %z")
    LASTBOOTDT=$(last -FRn 1 reboot | sed -n 's/.*system boot[ ]\+\(.\+\) - .*/\1/p')
    LASTBOOTDT=$(date -d "$LASTBOOTDT" +"%d %b %Y %H:%M %Z %z")
    printf "Report from: %s\n\n" "$REPORTDATE"
    printf "Booted last: %s\n\n" "$LASTBOOTDT"
    printf "Script from: %s\n" "$SCRIPTDATE"
    
    printf "\n##### release ###########################\n\n"
    lsb_release -idrc
    
    printf "\n##### kernel ############################\n\n"
    uname -srvmpio
    echo
    sed 's/root=[^ ]*//;s/[ ]\+/, /g;s/^BOOT_IMAGE=[^ ]*/Parameters:/' /proc/cmdline
    
    printf "\n##### desktop ###########################\n\n"
    if [ -n "$DESKTOP_SESSION" ]; then
        DESKTOP="$DESKTOP_SESSION"
    else
        DESKTOP=$(sed -n 's/^Session=\(.\+\)$/\1/p' "$HOME/.dmrc")
        DESKDMRC=" (from ~/.dmrc)"
    fi
    if [ -n "$DESKTOP" ]; then
        if [ -f "/usr/share/xsessions/$DESKTOP.desktop" ]; then
        DESKTOP=$(sed -n 's/^Name=\(.\+\)$/\1/p' "/usr/share/xsessions/$DESKTOP.desktop")
        fi
        echo "${DESKTOP/ Session/}${DESKDMRC}"
    else
        printf "\nCould not be determined.\n"
    fi
    
    printf "\n##### lspci #############################\n\n"
    lspci -nnk | grep -iA 2 '^[^[:space:]].*net' | sed '/^--$/d; /^[^[:space:]]/ i\\'
    
    printf "\n##### lsusb #############################\n\n"
    lsusb
    
    printf "\n##### PCMCIA card info ##################\n\n"
    if [ -x /sbin/pccardctl ]; then
        pccardctl info
    else
        echo "'pccardctl' is not installed (package \"pcmciautils\")."
    fi
    
    printf "\n##### rfkill ############################\n\n"
    rfkill list all
    
    printf "\n##### lsmod #############################\n\n"
    LSMOD=$(lsmod | egrep "(^|[[:punct:] ])($MODMATCHES|$LSMODMATCHES)[^[:punct:] ]*([[:punct:] ]|$)")
    echo "$LSMOD"
    
    printf "\n##### interfaces ########################\n\n"
    for IFACESFILE in $(find /etc/network/interfaces{,.d} -type f 2> /dev/null | sort); do
        IFACESFLCNT=$(sed '/^#/d;s/^wpa-psk [[:graph:]]\+/wpa-psk <WPA key removed>/' $IFACESFILE)
        if [ -n "$IFACESFLCNT" ]; then
        printf "[%s]\n%s\n\n" "$IFACESFILE" "$IFACESFLCNT"
        fi
    done
    
    printf "\n##### ifconfig ##########################\n\n"
    if [ -x /sbin/ifconfig ]; then
        IFCONFIG=$(ifconfig -a)
    else
        IFCONFIG=$(ip address show)
    fi
    echo "$IFCONFIG"
    IFCONFIG=$(sed -n '1h; 1!H; ${g;s/\n /\\ /g;p}' <<< "$IFCONFIG")
    IFACESETH=($(sed -n 's/^\([^ ]\+\)[ ]\+Link encap:Ethernet.*/\1/p; s#^[0-9]\+: \([^ :]\+\):.* link/ether.*#\1#p' <<< "$IFCONFIG"))
    if (( ${#IFACESETH[@]} > 0 )); then
        IFETHMATCHES=${IFACESETH[@]}
        IFACEMATCHES="($IFACEMATCHES|(${IFETHMATCHES// /|}))"
    fi
    
    printf "\n##### iwconfig ##########################\n\n"
    iwconfig
    
    printf "\n##### route #############################\n\n"
    if [ -x /sbin/route ]; then
        route -n
    else
        ip route show
    fi
    
    printf "\n##### resolv.conf #######################\n\n"
    grep -v '^#' /etc/resolv.conf
    
    printf "\n##### network managers ##################\n\n"
    printf "Installed:\n\n"
    for NETMGRNR in "${!NETMGRPATHS[@]}"; do
        if [ -f "${NETMGRPATHS[$NETMGRNR]}" ]; then
        NETMGRINST+=("${NETMGRNAMES[$NETMGRNR]}")
        fi
    done
    printf "\t%s\n" "${NETMGRINST[@]:-None found.}"
    NETMGRMATCHES=${NETMGRPATHS[@]/#*\//|}
    NETMGRMATCHES=${NETMGRMATCHES// |/|}
    NETMGRMATCHES="(${NETMGRMATCHES#|})"
    printf "\nRunning:\n\n"
    ps -ef | egrep "( |/)$NETMGRMATCHES($| )" || printf "\tNone found.\n"
    
    printf "\n##### NetworkManager info ###############\n\n"
    if [ -x /usr/bin/nm-tool ]; then
        nm-tool
    elif [ -x /usr/bin/nmcli ]; then
        nmcli -f all device show | sed '/^GENERAL.DEVICE:[ ]\+lo$/,/^$/d; /^AP\[[0-9]\+\]\./d'
        echo
        nmcli -f SSID,BSSID,MODE,CHAN,FREQ,RATE,SIGNAL,BARS,SECURITY,ACTIVE,IN-USE device wifi list
    else
        echo "NetworkManager is not installed (package \"network-manager\")."
    fi
    
    printf "\n##### NetworkManager.state ##############\n\n"
    cat -s /var/lib/NetworkManager/NetworkManager.state
    
    printf "\n##### NetworkManager.conf ###############\n\n"
    grep -v '^#' /etc/NetworkManager/NetworkManager.conf
    if [ -f /etc/NetworkManager/nm-system-settings.conf ]; then
        printf "\nnm-system-settings.conf (used up to Ubuntu 10.04):\n\n"
        grep -v '^#' /etc/NetworkManager/nm-system-settings.conf
    fi
    
    printf "\n##### NetworkManager profiles ###########\n\n"
    if [ -d /etc/NetworkManager/system-connections ]; then
        if [ -n "$SUDO" ]; then
        trap "" 2 3
        NMPROFILES=$(find /etc/NetworkManager/system-connections -maxdepth 1 -type f -exec $SUDO${GKSUDO+ -D grep --}${KDESUDO+ -d --comment "<b>grep</b>$KDESUDOCMT" --} grep -vH '^$' {} +) && SUDOSUCCESS="yes" || SUDOSUCCESS="no"
        trap 2 3
        if [ "$SUDOSUCCESS" = "yes" ]; then
            ORIGIFS="$IFS"
            IFS=$'\n'
            for NMWLPRFFILE in $(sed -n 's/^\(.\+\):type=\(802-11-wireless\|wifi\).*$/\1/p' <<< "$NMPROFILES"); do
            NMWLPRFFLPERMS=$(stat -c "%a %U" "$NMWLPRFFILE")
            NMWLPROFILE=($(sed -n "s;^$NMWLPRFFILE:\($NMPROFMATCHES.*\)$;\1 |;p" <<< "$NMPROFILES"))
            NMWLPROFSOUT+="[[$NMWLPRFFILE]] ($NMWLPRFFLPERMS)"$'\n'"${NMWLPROFILE[@]}"$'\n\n'
            done
            IFS="$ORIGIFS"
            sed 's# | \[#\n\[#g;s#\] |#\]#g;s/ |$//' <<< "$NMWLPROFSOUT" | sed '/^\[[^]]*\]$/d'
        else
            printf "\nAcquisition of admin privileges failed.\n"
        fi
        else
        echo "No way to acquire admin privileges found."
        fi
    else
        echo "No NetworkManager profiles found."
    fi
    
    printf "\n##### Netplan config ####################\n\n"
    for NPLANFILE in $(find /{lib,etc,run}/netplan -name "*.yaml" 2> /dev/null | sort); do
        NPLANFLCNT=$(egrep -v '^(#|$)' $NPLANFILE)
        if [ -n "$NPLANFLCNT" ]; then
        printf "[%s]\n%s\n\n" "$NPLANFILE" "$NPLANFLCNT"
        fi
    done
    
    printf "\n##### iw reg get ########################\n\n"
    if [ -x /sbin/iw ]; then
        if IWREGGET=$(iw reg get 2>&1) && [ -f /etc/timezone ]; then
        REGION=$(cat /etc/timezone)
        printf "Region: %s (based on set time zone)\n\n" "$REGION"
        fi
        echo "$IWREGGET"
    else
        echo "'iw' is not installed (package \"iw\")."
    fi
    
    printf "\n##### iwlist channels ###################\n\n"
    if [ -x /sbin/iwlist ]; then
        iwlist chan
    else
        echo "'iwlist' is not installed (package \"wireless-tools\")."
    fi
    
    printf "\n##### iwlist scan #######################\n\n"
    if [ -x /sbin/iwlist ]; then
        if [ -n "$SUDO" ]; then
        trap "" 2 3
        IWLISTSCAN=$($SUDO${KDESUDO+ -d} iwlist scan) && SUDOSUCCESS="yes" || SUDOSUCCESS="no"
        trap 2 3
        if [ "$SUDOSUCCESS" = "yes" ]; then
            if [[ $IWLISTSCAN = *Frequency:* ]]; then
            printf "Channel occupancy:\n\n"
            grep '^[ ]*Frequency:' <<< "$IWLISTSCAN" | sort | uniq -c | sed 's/^[ ]\+\([ ][0-9]\+\)[ ]\+/     \1   APs on   /'
            echo
            fi
            grep -v '^[ ]*IE: Unknown:' <<< "$IWLISTSCAN"
        else
            printf "\nAcquisition of admin privileges failed.\n"
        fi
        else
        echo "No way to acquire admin privileges found."
        fi
    else
        echo "'iwlist' is not installed (package \"wireless-tools\")."
    fi
    
    printf "\n##### module infos ######################\n\n"
    MODULES=$(egrep -o "^$MODMATCHES[^ ]*" <<< "$LSMOD")
    for MODULE in $MODULES; do
        MODINFO=$(modinfo $MODULE | egrep -v "^$MODINFOEXCL:")
        printf "[%s]\n%s\n\n" "$MODULE" "$MODINFO"
    done
    
    printf "\n##### module parameters #################\n\n"
    for MODULE in $MODULES; do
        if [ -d /sys/module/$MODULE/parameters ]; then
        MODPARAMS=$(grep -H '^[[:graph:]]' /sys/module/$MODULE/parameters/* | sed 's#^.*/##;s/:/: /')
        printf "[%s]\n%s\n\n" "$MODULE" "$MODPARAMS"
        fi
    done
    
    printf "\n##### /etc/modules ######################\n\n"
    grep -v '^#' /etc/modules
    
    printf "\n##### modprobe options ##################\n\n"
    for MODPROBEFILE in $(find /etc/modprobe.{conf,d} -name "*.conf" -regextype posix-egrep -not -regex ".*$MODPROBEXCL.*" 2> /dev/null | sort); do
        MODPROBEOPTS=$(egrep -v '^(#|$)' $MODPROBEFILE)
        if [ -n "$MODPROBEOPTS" ]; then
        printf "[%s]\n%s\n\n" "$MODPROBEFILE" "$MODPROBEOPTS"
        fi
    done
    
    printf "\n##### rc.local ##########################\n\n"
    grep -v '^#' /etc/rc.local
    
    printf "\n##### pm-utils ##########################\n\n"
    for PMUTILSFILE in $(find /etc/pm/*.d \( -type f -o -type l \) -regextype posix-egrep -not -regex "$PMUTILSEXCL" | sort); do
        PMUTFLCONT=$(egrep -v '^(#|$)' $PMUTILSFILE)
        if [ -n "$PMUTFLCONT" ]; then
        PMUTFLPERMS=$(stat -c "%a %U" $PMUTILSFILE)
        printf "[%s] (%s)\n%s\n\n" "$PMUTILSFILE" "$PMUTFLPERMS" "$PMUTFLCONT"
        fi
    done
    
    printf "\n##### udev rules ########################\n\n"
    for UDEVRLFILE in $(find /etc/udev/rules.d -name "*net*.rules" | sort); do
        UDEVRULES=$(grep -B1 '^[^#]' $UDEVRLFILE | egrep -v '^(--)?$')
        if [ -n "$UDEVRULES" ]; then
        printf "[%s]\n%s\n\n" "$UDEVRLFILE" "$UDEVRULES"
        fi
    done
    
    printf "\n##### dmesg #############################\n\n"
    dmesg | tail -n 100 | egrep "[[:punct:] ]($MODMATCHES|$IFACEMATCHES|$DMESGMATCHES)[^[:punct:] ]*[[:punct:] ]" | egrep -v "$DMESGEXCL" | uniq -cf 2 | sed 's/^[ ]\+1[ ]\+//;s/^[ ]\+\([0-9]\+\)[ ]\+\(.\+\)$/\2 (repeated \1 times)/'
    
    printf "\n########## wireless info END ############\n\n"
    
    exec 2>&4 4>&-
    exec 1>&3 3>&-
    
    ##### MAC address masking #####
    
    RESULTS=$(cat -s "$OUTPUTDIR/$FILEBASE.txt")$'\n'
    
    ORIGIFS="$IFS"
    IFS=$'\n'
    
    IFACESIDS=($(sed -n "/\([[:alnum:]]\{2\}:\)\{5\}[[:alnum:]]\{2\}/ {/\(00:\)\{5\}00/! {s/^\([^ ]\+\)[ ]\+.*HWaddr.*/'\1'/p; s/^[0-9]\+: \([^ :]\+\):.*/'\1'/p}}" <<< "$IFCONFIG"))
    IFACESMACS=($(sed -n '/\(00:\)\{5\}00/! s#.*\(HWaddr\|link/[^ ]\+\) \(\([[:alnum:]]\{2\}:\)\{5\}[[:alnum:]]\{2\}\).*#\2#p' <<< "$IFCONFIG"))
    IFACESIP6S=($(ip6-mac "${IFACESMACS[@]}"))
    
    WLAPSIWLIDS=($(sed -n "/^[ ]*Cell [0-9]\+/,/^[ ]*ESSID:/ {/^[ ]*Cell [0-9]\+/h; /^[ ]*ESSID:/ {H;g;s/^[ ]*Cell 0\?\([0-9]\+\).*ESSID:\"\(.*\)\"$/'\2' [AC\1]/p}}" <<< "$IWLISTSCAN"))
    WLAPSIWLMACS=($(sed -n 's/^[ ]*Cell [0-9]\+.*Address: \([^ ]\+\)/\1/p' <<< "$IWLISTSCAN"))
    WLAPSIWLIP6S=($(ip6-mac "${WLAPSIWLMACS[@]}"))
    
    WLAPSNMRAW=$(sed -n '/^##### NetworkManager info #####/,/^##### / {/^[ ]*Wireless Access Points/,/^$/ {/Wireless Access Points/d;s/^[ ]\+\*\?//;s/:[ ]\+/\t/;p}; /^SSID[ ]\+BSSID[ ]\+/,/^$/ {/^SSID[ ]\{2,\}BSSID[ ]\{2,\}/d;s/[ ]\{2,\}/\t/;p}}' <<< "$RESULTS")
    WLAPSNMIDS=($(awk -F '\t' '{print "'\''" $1 "'\''"}' <<< "$WLAPSNMRAW"))
    WLAPSNMMACS=($(grep -o '\([[:alnum:]]\{2\}:\)\{5\}[[:alnum:]]\{2\}' <<< "$WLAPSNMRAW"))
    WLAPSNMIP6S=($(ip6-mac "${WLAPSNMMACS[@]}"))
    
    IFS="$ORIGIFS"
    
    for IFACENR in "${!IFACESMACS[@]}"; do
        MACMASKSED+="s;${IFACESMACS[$IFACENR]};<MAC ${IFACESIDS[$IFACENR]} [IF$(($IFACENR + 1))]>;I;"
        MACMASKSED+=" /${IFACESIP6S[$IFACENR]}/ s;${IFACESIP6S[$IFACENR]/#\\(::/\(};<IP6 ${IFACESIDS[$IFACENR]} [IF$(($IFACENR + 1))]>;I;"
        IFACEMACC=${IFACESMACS[$IFACENR]//:/}
        if [[ ${IFACESIDS[$IFACENR],,} =~ ${IFACEMACC,,} ]]; then
        MACMASKSED+="s;\(${IFACESIDS[$IFACENR]:1:3}\)$IFACEMACC;\1<IF from MAC [IF$(($IFACENR + 1))]>;Ig;"
        fi
    done
    
    for WLAPIWLNR in "${!WLAPSIWLMACS[@]}"; do
        MACMASKSED+="s;${WLAPSIWLMACS[$WLAPIWLNR]};<MAC ${WLAPSIWLIDS[$WLAPIWLNR]}>;I;"
        MACMASKSED+=" /${WLAPSIWLIP6S[$WLAPIWLNR]}/ s;${WLAPSIWLIP6S[$WLAPIWLNR]/#\\(::/\(};<IP6 ${WLAPSIWLIDS[$WLAPIWLNR]}>;I;"
    done
    
    for WLAPNMNR in "${!WLAPSNMMACS[@]}"; do
        MACMASKSED+="s;${WLAPSNMMACS[$WLAPNMNR]};<MAC ${WLAPSNMIDS[$WLAPNMNR]} [AN$(($WLAPNMNR + 1))]>;I;"
        MACMASKSED+=" /${WLAPSNMIP6S[$WLAPNMNR]}/ s;${WLAPSNMIP6S[$WLAPNMNR]/#\\(::/\(};<IP6 ${WLAPSNMIDS[$WLAPNMNR]} [AN$(($WLAPNMNR + 1))]>;I;"
    done
    
    sed "$MACMASKSED /\([[:alnum:]]\{2\}:\)\{6,\}/! s/\([[:alnum:]]\{2\}:\)\{5\}[[:alnum:]]\{2\}/<MAC address>/" <<< "$RESULTS" > "$OUTPUTDIR/$FILEBASE.txt"
    
    ##### The End #####
    
    dialog_info "${TERMOUT+\n}Results saved in \"$OUTPUTDIR/$FILEBASE.txt\".${TERMOUT+\n}"
    
    if (( $(stat -c %s "$OUTPUTDIR/$FILEBASE.txt") > 19968 )); then
        tar -czf "$OUTPUTDIR/$FILEBASE.tar.gz" -C "$OUTPUTDIR" "$FILEBASE.txt" && \
        dialog_info "Results also archived in \"$OUTPUTDIR/$FILEBASE.tar.gz\",${DIALOGBREAK}as they exceed the 19.5 kB size limit for \".txt\" attachments${DIALOGBREAK}on the Ubuntu Forums.${TERMOUT+\n}" || \
        dialog_error "Results exceed the 19.5 kB size limit for \".txt\" attachments${DIALOGBREAK}on the Ubuntu Forums, but archive could not be created.${TERMOUT+\n}"
    fi
    
    if [ -x /usr/bin/pastebinit ] && ping -nc 3 -w 6 -i 0.2 paste.ubuntu.com > /dev/null 2>&1; then
        PASTEBIN=$(dialog_question "Do you also want to post them${DIALOGBREAK}to your default 'pastebinit' provider?")
        if [[ ! $PASTEBIN =~ ^no?$ ]]; then
        PASTERESULT=$(pastebinit -i "$OUTPUTDIR/$FILEBASE.txt" -f text 2>&1) && PASTESUCCESS="yes"
        if [ "$PASTESUCCESS" = "yes" ]; then
            dialog_info "${TERMOUT+\n}Pastebin successful:\n\n${PASTERESULT}${TERMOUT+\n}"
        else
            if [ -n "$PASTERESULT" ]; then
            dialog_error "${TERMOUT+\n}Pastebin failed, error message is:\n\n${PASTERESULT}${TERMOUT+\n}"
            else
            dialog_error "${TERMOUT+\n}Pastebin failed, no error message given.${TERMOUT+\n}"
            fi
        fi
        else
        echo
        fi
    fi
    Last edited by wildmanne39; May 9th, 2018 at 04:51 PM. Reason: Added code tags

  4. #4
    Join Date
    Feb 2008
    Location
    Texas
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    28,830
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: wireless not working after installing ubuntu 18.04

    Hello, you posted the script itself, after you run the script it creates a file "wireless-info.txt" at the location it is run from, which is usually your home folder and depending on its size, an additional archive called "wireless-info.tar.gz" that is what we need posted here.

    Please use code tags - if you are using New Reply button - highlight text and use the # button in the text box header.

    If using Quick Reply then [code] at the beginning and [/code] at the end.

    I am leaving town in about an hour so once you post the file someone should stop by and help you out.

  5. #5
    Join Date
    Aug 2005
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    South Carolina, USA
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    Distro
    Ubuntu 20.04 Focal Fossa

    Re: wireless not working after installing ubuntu 18.04

    I am leaving town in about an hour so once you post the file someone should stop by and help you out.
    Subscribed. Have a nice trip.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  6. #6
    Join Date
    Aug 2011
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    Berlin, Germany
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    Ubuntu Mate 16.04 Xenial Xerus

    Re: wireless not working after installing ubuntu 18.04

    Installation for the driver

    Code:
    sudo apt-get install git build-essential dkms linux-headers-$(uname -r)
    git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
    sudo dkms add ./rtlwifi_new
    sudo dkms install rtlwifi-new/0.6
    sudo cp /usr/src/rtlwifi-new-0.6/firmware/rtlwifi/* /lib/firmware/rtlwifi/
    Reboot and deactivate SecureBoot. For weak signals:
    Code:
    echo "options rtl8723de ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723de.conf 
    sudo modprobe -rfv rtl8723de
    sudo modprobe -v rtl8723de
    Did not work well? Repeat it with "ant_sel=1"

  7. #7
    Join Date
    May 2018
    Beans
    9

    Re: wireless not working after installing ubuntu 18.04

    @Wildmanne39, Sorry for this conflict, thanks for your support and have a nice trip
    @Chili55, Thanks for your consideration
    @Praseodym, thanks a lot for your reply actually the issue has been resolved after executing your commands but could you please explain each step to be clear with me?, thanks a gain

  8. #8
    Join Date
    Aug 2011
    Location
    Berlin, Germany
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    7,849
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: wireless not working after installing ubuntu 18.04

    The commands install the compiler, download the source code, add it to the tree, installs the driver and copies the firmware to the right place. The second series changes the antenna used from the card. It has two...one of them works better than the other, and unloads/reloads the driver.

  9. #9
    Join Date
    May 2018
    Beans
    9

    Re: wireless not working after installing ubuntu 18.04

    I have another issue and need your help
    My laptop (lenovo ideapad 110-15IBR) with OS (ubuntu14.04 ). when i connected it to multiple screens, i saw a lot of mouse cursors. i have upgraded the OS to (ubuntu18.06 ) but the issue still exist

  10. #10
    Join Date
    Aug 2005
    Location
    South Carolina, USA
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    25,319
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: wireless not working after installing ubuntu 18.04

    Quote Originally Posted by amna-ali View Post
    I have another issue and need your help
    My laptop (lenovo ideapad 110-15IBR) with OS (ubuntu14.04 ). when i connected it to multiple screens, i saw a lot of mouse cursors. i have upgraded the OS to (ubuntu18.06 ) but the issue still exist
    For myself, and I can't speak for the other wireless gurus here, I know a bit about wireless and networking and very little about video, displays and cursors. All I know is I have one!

    I suggest that you ask that question here: https://ubuntuforums.org/forumdisplay.php?f=331
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

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