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Message #153826
[Bug 1493143] Re: rtl8723be wifi unusable on lenovo ideapad y50-70
Done. The wlan2 in the wifilog is an external USB wifi adapter i'm
currently using - it was not plugged in when I ran apport.
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https://bugs.launchpad.net/bugs/1493143
Title:
rtl8723be wifi unusable on lenovo ideapad y50-70
Status in linux package in Ubuntu:
Incomplete
Bug description:
I obtained a lenovo y50-70 a few weeks ago, and installed ubuntu
14.04.3 LTS on it (dual boot with windows 8 that came pre-installed).
$ lsb_release -rd
Description: Ubuntu 14.04.3 LTS
Release: 14.04
I have not been able to get the rtl8723be wifi adapter to work yet.
If it will connect to a wifi network at all (which is rare), it will
be choppy (10% to 50% packet loss on a ping to the default gateway)
and usually disconnect after a few minutes.
The internet suggests a few work-arounds:
- run with fwlps=0 ips=0 as options to the rtl8723be module (eg. http://askubuntu.com/questions/590414/wifi-problems-with-rtl8723be-in-ubuntu-14-04)
- install an alternative driver (eg. http://askubuntu.com/questions/590414/wifi-problems-with-rtl8723be-in-ubuntu-14-04)
http://paste.ubuntu.com/1230961
However, none of those suggested worked for me.
I have tried downgrading the kernel down to 3.13.0-62, and various
kernels in between, but none of that helped either.
Output of the wireless-info script here:
http://paste.ubuntu.com/12309610/
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-extra-3.19.0-26-generic 3.19.0-26.28~14.04.1
ProcVersionSignature: Ubuntu 3.19.0-26.28~14.04.1-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.12
Architecture: amd64
Date: Mon Sep 7 21:18:25 2015
InstallationDate: Installed on 2015-08-21 (17 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-lts-vivid
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
DistroRelease: Ubuntu 14.04
InstallationDate: Installed on 2015-08-21 (130 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: LENOVO 20378
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-39-generic.efi.signed root=UUID=0127c47d-596d-4248-826b-b48818acce77 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9
RelatedPackageVersions:
linux-restricted-modules-3.19.0-39-generic N/A
linux-backports-modules-3.19.0-39-generic N/A
linux-firmware 1.127.19
Tags: trusty
Uname: Linux 3.19.0-39-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/12/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: 9ECN43WW(V3.03)
dmi.board.asset.tag: 31900058WIN
dmi.board.name: Lenovo Y50-70
dmi.board.vendor: LENOVO
dmi.board.version: 31900058WIN
dmi.chassis.asset.tag: 31900058WIN
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Y50-70
dmi.modalias: dmi:bvnLENOVO:bvr9ECN43WW(V3.03):bd08/12/2015:svnLENOVO:pn20378:pvrLenovoY50-70:rvnLENOVO:rnLenovoY50-70:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoY50-70:
dmi.product.name: 20378
dmi.product.version: Lenovo Y50-70
dmi.sys.vendor: LENOVO
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