2

Last Update ~ Found Solution

I tried reinstalling Ubuntu, and and gave the solutions here another try. They did not work, however I did find a solution that worked. I'll leave a link here for anyone that would have this issue, and would stumble across this post.

I did searches around for hp 17-by0021dx and RTL8723DE. I'd add the tags for both, but I can't.

https://h30434.www3.hp.com/t5/Notebook-Wireless-and-Networking/Realtek-8723DE-wifi-module-amp-Bluetooth-Linux-driver/td-p/6477307

From the link (I followed the second option):

For installing from git sources in Ubuntu:

Either download a ".zip" copy of the git sources for RTL8723DE driver from https://github.com/lwfinger/rtlwifi_new/archive/extended.zip , extract it and follow step (2) below

OR

  1. Make sure you have git installed. You can install git using apt install git or through synaptic/software manager. If you want to use dkms to make and install the driver, make sure that dkms also is installed. You can download and install using below commands, in a terminal:

    :~$ sudo apt update && sudo apt install git dkms

  2. The RTL8723DE driver is in the git extended branch. So,

Open a terminal:

:~$ cd Downloads

:~$ git clone -b extended --single-branch https://github.com/lwfinger/rtlwifi_new.git
unofficial
:~$ cd rtlwifi_new

Now, either you can run:
:~/Downloads/rtlwifi_new$ make 
:~/Downloads/rtlwifi_new$ sudo make install

OR use dkms to build and manage the modules:

:~/Downloads/rtlwifi_new$ sudo dkms add ../rtlwifi_new
:~/Downloads/rtlwifi_new$ sudo dkms build rtlwifi-new/0.6 
:~/Downloads/rtlwifi_new$ sudo dkms install rtlwifi-new/0.6
:~/Downloads/rtl-new/rtlwifi_new$ sudo modprobe -v rtl8723de ant_sel=2

^^ That should work. If firmware error is shown, reboot and will work. Make sure, you have linux-headers for the respective kernel(s) and build-essential packages installed.

For me, ant_sel=2 shows the maximum WiFi signal gain. So, I've added below lines in a separate conf file:

:~$ sudo /bin/sh -c 'echo "options rtl8723de ant_sel=2" >> /etc/modprobe.d/rtl8723de.conf'

Hope this helps. If it does not build, use :

:~/Downloads/rtlwifi_new$ sudo dkms install rtlwifi-new/0.6 --force

_____old info below______

I just recently installed xubuntu on my laptop alongside Windows 10. I can't find a way to search for Wi-Fi connections as it doesn't give the option. I looked around online, but I didn't find anything that worked.

I had to connect to ethernet to run update and upgrade commands, but it still won't search for Wi-Fi.

rfkill

ID TYPE      DEVICE      SOFT      HARD
 0 bluetooth hci0   unblocked unblocked

ifconfig

enp1s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.0.168  netmask 255.255.255.0  broadcast 10.0.0.255
        inet6 fe80::7b5c:dc97:d535:2eee  prefixlen 64  scopeid 0x20<link>
        ether e4:e7:49:a0:71:51  txqueuelen 1000  (Ethernet)
        RX packets 11585  bytes 8686420 (8.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7977  bytes 1095167 (1.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1751  bytes 178413 (178.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1751  bytes 178413 (178.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lspci

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:17.0 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723

mokutil --sb-state

SecureBoot enabled

edit:

I turned off secure boot. While the advice here is certainly helping, the issue is not completely resolved. But I'm seeing the wi-fi pop in and out.

After turning off secure boot, I got the Wi-Fi option, but it's popping in and out. It's not staying on. When I do see the available wi-fi option, and I click on it, it starts to load showing a spinning circle, and then goes away and turns back into an up arrow and down arrow ↑↓

sudo lsmod

Module                  Size  Used by
ccm                    20480  0
bnep                   20480  2
nls_iso8859_1          16384  1
arc4                   16384  2
rtl8723de              98304  0
btcoexist             434176  1 rtl8723de
snd_hda_codec_hdmi     49152  1
phydm_mod             856064  1 rtl8723de
snd_hda_codec_realtek   106496  1
snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
wmi_bmof               16384  0
hp_wmi                 16384  0
sparse_keymap          16384  1 hp_wmi
intel_wmi_thunderbolt    16384  0
rtl8723_common         24576  1 rtl8723de
rtl_pci                32768  1 rtl8723de
uvcvideo               86016  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         24576  1 uvcvideo
videobuf2_core         40960  2 videobuf2_v4l2,uvcvideo
videodev              184320  3 videobuf2_core,videobuf2_v4l2,uvcvideo
media                  40960  2 videodev,uvcvideo
intel_rapl             20480  0
snd_soc_skl            90112  0
x86_pkg_temp_thermal    16384  0
snd_soc_skl_ipc        65536  1 snd_soc_skl
intel_powerclamp       16384  0
i915                 1617920  4
snd_hda_ext_core       24576  1 snd_soc_skl
coretemp               16384  0
snd_soc_sst_dsp        32768  1 snd_soc_skl_ipc
kvm_intel             212992  0
kvm                   598016  1 kvm_intel
snd_soc_sst_ipc        16384  1 snd_soc_skl_ipc
snd_soc_acpi           16384  1 snd_soc_skl
irqbypass              16384  1 kvm
snd_soc_core          241664  1 snd_soc_skl
crct10dif_pclmul       16384  0
snd_compress           20480  1 snd_soc_core
crc32_pclmul           16384  0
ac97_bus               16384  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
snd_hda_intel          40960  3
ghash_clmulni_intel    16384  0
snd_hda_codec         126976  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
pcbc                   16384  0
snd_hda_core           81920  7 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_soc_skl
snd_hwdep              20480  1 snd_hda_codec
snd_pcm                98304  8 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
aesni_intel           188416  0
snd_rawmidi            32768  1 snd_seq_midi
aes_x86_64             20480  1 aesni_intel
crypto_simd            16384  1 aesni_intel
glue_helper            16384  1 aesni_intel
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel,aesni_intel
intel_cstate           20480  0
intel_rapl_perf        16384  0
snd_seq                65536  2 snd_seq_midi,snd_seq_midi_event
rtlwifi               163840  5 rtl_pci,rtl8723de,btcoexist,phydm_mod,rtl8723_common
mac80211              778240  2 rtl_pci,rtlwifi
input_leds             16384  0
joydev                 24576  0
serio_raw              16384  0
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer              32768  2 snd_seq,snd_pcm
btusb                  45056  0
btrtl                  16384  1 btusb
btbcm                  16384  1 btusb
snd                    81920  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
btintel                16384  1 btusb
bluetooth             548864  12 btrtl,btintel,btbcm,bnep,btusb
soundcore              16384  1 snd
processor_thermal_device    16384  0
mei_me                 40960  0
cfg80211              622592  2 rtlwifi,mac80211
drm_kms_helper        172032  1 i915
ecdh_generic           24576  1 bluetooth
mei                    90112  1 mei_me
shpchp                 36864  0
intel_soc_dts_iosf     16384  1 processor_thermal_device
drm                   401408  5 drm_kms_helper,i915
intel_pch_thermal      16384  0
i2c_algo_bit           16384  1 i915
fb_sys_fops            16384  1 drm_kms_helper
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
wmi                    24576  3 hp_wmi,intel_wmi_thunderbolt,wmi_bmof
int3403_thermal        16384  0
int340x_thermal_zone    16384  2 int3403_thermal,processor_thermal_device
video                  45056  1 i915
int3400_thermal        16384  0
acpi_thermal_rel       16384  1 int3400_thermal
mac_hid                16384  0
acpi_pad              180224  0
hp_wireless            16384  0
sch_fq_codel           20480  6
parport_pc             36864  0
ppdev                  20480  0
lp                     20480  0
parport                49152  3 parport_pc,lp,ppdev
ip_tables              28672  0
x_tables               40960  1 ip_tables
autofs4                40960  2
hid_generic            16384  0
usbhid                 49152  0
psmouse               147456  0
r8169                  86016  0
ahci                   40960  4
mii                    16384  1 r8169
libahci                32768  1 ahci
i2c_hid                20480  0
hid                   118784  3 i2c_hid,usbhid,hid_generic
  • Can you give us the outputs of ifconfig and rfkill ? – rm-vanda Apr 1 at 18:41
  • I added the output above. – ethereal Apr 1 at 20:25
  • iconfig and ifconfig are two separate commands, you did not use the correct command as was requested. Also include the output of lspci on your system as well. – Thomas Ward Apr 1 at 20:26
  • Thanks. My bad. I updated the output. – ethereal Apr 1 at 20:46
  • 2
    Possible duplicate of Realtek Semiconductor RTL8723DE Device d723 issue – Jeremy31 Apr 1 at 21:19
1

go into your bios, and disable secureboot. save and exit.

In /etc/modprobe.d/blacklist.conf I added the line: blacklist ideapad_laptop

if you just want to test this as a solution, do:sudo rmmod ideapad_laptop

I think you will find networks are available immediately. This worked on Ubuntu 18.10 why is the kernel module named ideapad_lenovo and not a more logical "realtek-something-or-other"? I have no idea, ask linus:

  • I disabled secureboot, as I explained in the edit above. However, to clarify, am I to replace "laptop" with the laptop I have, as you also mentioned "ideapad_lenovo"? Typing "ideapad_laptop" gave me: rmmod: ERROR: Module ideapad_laptop is not currently loaded – ethereal Apr 2 at 18:04
  • I too am learning to troubleshoot faulty modules in linux. can you do sudo lsmod and list results? – j0h Apr 2 at 22:12
  • I listed the output above. – ethereal Apr 3 at 0:14

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