rtl8723bs slow wifi (after kernel 4.18)

Bug #1819192 reported by Erkan ÜNLÜTÜRK
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

wifi slowed down after kernel 4.18

(https://askubuntu.com/questions/756748/inconsistent-connection-and-super-slow-speed-with-rtl8723be) it does not work. thanks
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D2p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperVersion: 1.394
CurrentDesktop: XFCE
DistroRelease: Ubuntu 18.04
LiveMediaBuild: Xubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 058f:5608 Alcor Micro Corp.
 Bus 001 Device 003: ID 058f:6387 Alcor Micro Corp. Flash Drive
 Bus 001 Device 002: ID 6080:8060
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: I-Life Digital Technologies LLC ZED AIR TES
Package: linux (not installed)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed boot=casper quiet splash ---
ProcVersionSignature: Ubuntu 4.18.0-15.16~18.04.1-generic 4.18.20
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-4.18.0-15-generic N/A
 linux-backports-modules-4.18.0-15-generic N/A
 linux-firmware 1.173.3
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
StagingDrivers: r8723bs
Tags: bionic staging
Uname: Linux 4.18.0-15-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/06/2017
dmi.bios.version: LC-BI-14-Y116CR210-424-B
dmi.board.asset.tag: Default string
dmi.board.name: Cherry Trail CR
dmi.board.vendor: AMI Corporation
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.version: Default string
dmi.modalias: dmi:bvn:bvrLC-BI-14-Y116CR210-424-B:bd12/06/2017:svnI-LifeDigitalTechnologiesLLC:pnZEDAIRTES:pvrDefaultstring:rvnAMICorporation:rnCherryTrailCR:rvrDefaultstring:cvn:ct10:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: ZED AIR TES
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: I-Life Digital Technologies LLC

Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

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 1819192

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.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : AlsaInfo.txt

apport information

tags: added: apport-collected bionic staging
description: updated
Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : CRDA.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : CurrentDmesg.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : IwConfig.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : Lspci.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : ProcCpuinfo.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : ProcCpuinfoMinimal.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : ProcInterrupts.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : ProcModules.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : UdevDb.txt

apport information

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote : WifiSyslog.txt

apport information

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

What is the kernel version when it's fast?

Revision history for this message
Erkan ÜNLÜTÜRK (erkan-unluturk) wrote :

4.15 (Before update 18.04.2)

Revision history for this message
Kai-Heng Feng (kaihengfeng) wrote :

Please find the first -rc kernel between v4.16-rc* and v4.18-rc* that causes this regression in [1].

[1] https://kernel.ubuntu.com/~kernel-ppa/mainline/

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.