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Message #120717
[Bug 1451233] Re: Realtek RTL8723BE drops connection until reboot
I've been testing the following kernel:
Linux 4.1.0-040100rc5-generic #201505250235 SMP Mon May 25 02:37:02 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
After installing this version I was not able to connect to my wireless
network at all until 3rd reboot (dmesg showed timeout after 3 retries).
After that the connection is working but I still get disconnected after
few minutes and only reboot helps. Please note that I'm not using any
workarounds for now as suggested.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.1-rc5
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1451233
Title:
Realtek RTL8723BE drops connection until reboot
Status in linux package in Ubuntu:
Confirmed
Bug description:
I have a Lenovo B5400 laptop with RTL8723BE wireless module. The internet connection constantly getting lost after a random duration (usually after 20-30 minutes). The NetworkManager applet does not recognize it (still looks like i have a connection), but when I try do disconnect and connect again, there is only one useful information I can find in dmesg:
"wlan0: deauthenticating from [ap mac address] by local choice (Reason: 3=DEAUTH_LEAVING)"
Reinserting the driver (modprobe -r rtl8723be and modprobe rtl8723) used to be my only workaround, but it does not work anymore and now I have to reboot.
The following improves performance, but I am still encountering some minor performance issues while playing online games (random lag spikes):
sudo nano /etc/modprobe.d/rtl8723be.conf
options rtl8723be ips=0 fwlps=0
---
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: pk 1907 F.... pulseaudio
/dev/snd/controlC0: pk 1907 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=4ce160f4-029c-4fd5-ba3f-254c6e3e33dd
InstallationDate: Installed on 2015-05-24 (0 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: LENOVO 20278
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-38-generic root=UUID=a9da170f-b86b-434f-910b-00929ceb8420 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
RelatedPackageVersions:
linux-restricted-modules-3.16.0-38-generic N/A
linux-backports-modules-3.16.0-38-generic N/A
linux-firmware 1.127.12
Tags: trusty
Uname: Linux 3.16.0-38-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/03/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: J7ET61WW (2.06 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20278 QB0
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrJ7ET61WW(2.06):bd03/03/2014:svnLENOVO:pn20278:pvrB5400:rvnLENOVO:rn20278QB0:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20278
dmi.product.version: B5400
dmi.sys.vendor: LENOVO
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