RTL8723BS wifi not working

[aveem ashfaq]

I have a Chuwi Hi10 Air laptop which has rtl8723bs wifi chip. Wifi works in Ubuntu 18.04 LTS, it works in Fedora 30 as well. But not in Ubuntu 19.04.

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-firmware 1.178.2
ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8
Uname: Linux 5.0.0-20-generic x86_64
ApportVersion: 2.20.10-0ubuntu27.1
Architecture: amd64
Date: Sat Jul 13 14:50:45 2019
Dependencies:

InstallationDate: Installed on 2019-07-12 (0 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_IN:en
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)

[aveem ashfaq (aveemashfaq)]

Sorry guys. False alarm. It was something to do with secure boot. I disabled secure boot and it starts working magically. The problem is though, even with secure boot on, Fedora works fine. Arch Linux also works fine.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1836440

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Kai-Heng Feng (kaihengfeng)]

Please test if r8723bs works with this kernel:
https://people.canonical.com/~khfeng/lp1836440/

I removed some debugging code of the driver in order to make it loadable under kernel lockdown.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[James Swift (swiftscripts)]

I have the same issue with this driver. I can boot the live usb with secure boot and the wifi works. But after install, I cannot get the module to load the firmware and so there is no interface. I have tried all the available efi files, but nothing enables the module. Although my laptop says I can turn of secureboot, it seems to make no difference.

[Kai-Heng Feng (kaihengfeng)]

Can you please attach dmesg?

[James Swift (swiftscripts)]

I will attach a full dmesg from 19.10 when I get back home. In the meantime I can say that as far as the driver messages go the only difference I have found is that the following line is present in the live dmesg, but missing from the dmesg after I install:

rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin

[James Swift (swiftscripts)]

Here's a dmesg from a live usb, where the wifi works (only when I select boot64.efi (not grub.efi)). I have a working fedora installation just now, if you think it is important I can nuke it and provide a dmesg form after the install :-(

[Kai-Heng Feng (kaihengfeng)]

Is secure boot enabled?