Suffering from weak rtl8723be wifi signal and new to proposed updates.
What I have done:
1. Make sure there are no more updates from non-propopsed sources (main,
universe).
2. Enable proposed updates in GUI (this updates package list automatically).
3. back to command-line (just to feel safe): $ sudo apt-get update
4. $ sudo apt-get install linux-image-generic/bionic-proposed
5. $ sudo reboot
Weak signal! :-(
$ uname -a
Linux a12 4.15.0-48-generic #51-Ubuntu SMP Wed Apr 3 08:28:49 UTC 2019 x86_64
x86_64 x86_64 GNU/Linux
$ dpkg -l | grep linux-image
ii linux-image-4.15.0-20-generic 4.15.0-20.21
amd64 Signed kernel image generic
ii linux-image-4.15.0-47-generic 4.15.0-47.50
amd64 Signed kernel image generic
ii linux-image-4.15.0-48-generic 4.15.0-48.51
amd64 Signed kernel image generic
ii linux-image-generic 4.15.0.48.50
amd64 Generic Linux kernel image
With ant_sel=2 I do get strong signal, though. But as that requires manual
intervention ...
I cannot confirm this bug being solved with kernel in proposed updates.
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https://bugs.launchpad.net/bugs/1788997
Title:
rtl8723be wifi does not work under linux-modules-
extra-4.15.0-33-generic
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
Fix Committed
Bug description:
=== SRU Justification ===
[Impact]
Realtek 8723be's ant_sel parameter stops working since 4.15.0-33.36.
[Fix]
The commit that causes the regression works in mainline, so there are
some functional dependencies are not in 4.15.
Finding those dependencies can be hard since I don't have the hardware
to test with, also pulling new commits may cause new regression. So the
safest way to deal with this bug is to simply revert the regression
commit.
[Test]
User confirmed reverting the commit can fix the issue.
[Regression Potential]
Low. Realtek 8723be works without this commit.
=== Original Bug Report ===
When starting Xubuntu 18.04.1 LTS on a laptop HP 1S-af023ng with kernel
4.15.0-32.35 amd64, wifi via rtl8723be works OK.
Using actual 4.15.0-33.36 amd64 instead, rtl8723be doesn't find any
wifi networks and thus there is no connection. Changing the antenna
setup in /etc/modprobe.d/rtl8723be_options.conf doesn't help either;
as a workaround an external wifi device (Gigaset USB Adapter 108)
works.
The expectation is that wifi through rtl8723be will still work under
4.15.0-33.36 as it did previously.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: al 1234 F.... pulseaudio
/dev/snd/controlC0: al 1234 F.... pulseaudio
CurrentDesktop: XFCE
DistroRelease: Ubuntu 18.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2018-05-27 (89 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
MachineType: Hewlett-Packard HP Notebook
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic
root=UUID=32ea87b7-f595-4137-a54b-55838586f720 ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-33-generic N/A
linux-backports-modules-4.15.0-33-generic N/A
linux-firmware 1.173.1
Tags: bionic
Uname: Linux 4.15.0-33-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/01/2015
dmi.bios.vendor: Insyde
dmi.bios.version: F.02
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 8137
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 99.02
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsyde:bvrF.02:bd04/01/2015:svnHewlett-Packard:pnHPNotebook:pvrType1ProductConfigId:rvnHewlett-Packard:rn8137:rvr99.02:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP
dmi.product.name: HP Notebook
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: Hewlett-Packard
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