Arch Linux

ayb

Member

Registered: 2021-02-21

Posts: 9

No Wi-Fi with RTL8723 card

I've got a laptop with the RTL8723 wi-fi card, it worked well in archiso. But when I installed Arch on my computer, it didn't work anymore. I loaded the r8723bs driver using 'modprobe', since it wasn't loaded by default but wi-fi doesn't work. It seems that the bluetooth is loaded but not the wi-fi one. The command ip link only lists the lo interface.

Thanks!

-- ayb

euromatlox

Member

Registered: 2017-02-10

Posts: 110

Re: No Wi-Fi with RTL8723 card

What exactly you did? The procedure told here or something else ?

ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

Actually my card wasn't listed by lspci or lsusb. But I had an Ubuntu installation where wifi worked and it told me that the driver used was r8723bs so enabled it. But my wifi is still not listed.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,671

Re: No Wi-Fi with RTL8723 card

If something works on the ISO and doesn't on the install it's usually because you forgot to install linux-firmware

ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

No, according to pacman the package linux-firmware is installed

progandy

Member

Registered: 2012-05-17

Posts: 5,190

Re: No Wi-Fi with RTL8723 card

You can try to install the exact same version of linux and linux-firmware as on the ISO from the arch linux archive.
https://wiki.archlinux.org/index.php/Arch_Linux_Archive

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ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

I've tried rebooting from the iso, however when I boot from the iso, it doesn't have wifi either, which is really weird. So, I think that the installation may have triggered some locks. But it seems improbable since it isn't listed by rfkill.

seth

Member

Registered: 2012-09-03

Posts: 51,056

Re: No Wi-Fi with RTL8723 card

Do you have a windows installation?
Does the system have a HW wifi switch (in doubt Fn+something)?

my card wasn't listed by lspci or lsusb

Can you please post both?

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ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

Do you have a windows installation?

No I erased the disk and removed it.

Does the system have a HW wifi switch (in doubt Fn+something)?

Yes I tried using it but it just changes the status of the bluetooth in rfkill.

Can you please post both?

lsusb:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID ffff:5678 USB Disk 2.0
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 002: ID 258a:1015 SIPODEV USB Composite Device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci:

00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 36)
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 36)
00:03.0 Multimedia controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Imaging Unit (rev ff)
00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 36)
00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 36)
00:16.0 USB controller: Intel Corporation Device 22b7 (rev 36)
00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 36)
00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 36)

seth

Member

Registered: 2012-09-03

Posts: 51,056

Re: No Wi-Fi with RTL8723 card

Doesn't list BT either - I2C chip?
Check i2cdetect from https://archlinux.org/packages/communit … i2c-tools/

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ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

I've made some research and it looks like it's an SDIO device.
In the dmesg it lists BT and it's in rfkill output:

[    6.876951] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[    6.881236] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_fw.bin
[    6.884292] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_config-OBDA8723.bin

ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

Rfkill actually lists the BT card.

Last edited by ayb (2021-02-21 15:45:42)

ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

I dualbooted with ubuntu and now wifi works in arch, I don't know why does that work but wifi works.

seth

Member

Registered: 2012-09-03

Posts: 51,056

Re: No Wi-Fi with RTL8723 card

Did you check what module(s) and firmware ubuntu uses?
I guess, once "activated" the chip will continue to work until the system is powered down (ie. survive a warm reboot)

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ayb

Member

Registered: 2021-02-21

Posts: 9

Re: No Wi-Fi with RTL8723 card

It looks that it uses r8723bs just like arch. And even after shutdown it works when I boot.