Paweł Kowalik, thank you for reporting this and helping make Ubuntu better.
Could you please execute the following command, as it will automatically gather
debugging information, in a terminal:
apport-collect 1417450
** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1451233
Title:
Realtek RTL8723BE drops connection until reboot
Status in linux package in Ubuntu:
Incomplete
Bug description:
There are a lot of bugs submitted about this module, but it seems like
none of them provides any useful informations or workarounds.
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.
I am pretty sure this bug affects many people as we can see here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442908
or here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1240940
Also I have found an interesting response from lwfinger's github repository
about similar issue:
"I have no idea what Ubuntu is doing with their kernels and why it is now
failing; however, some of Ubuntu's practices have caused me to stop supporting
anyone that uses Ubuntu. Sorry, but they were wasting too much of my time. As a
volunteer, I could see no reason to continue beating my head against the wall.
Switch back to the older version of Ubintu's kernel."
https://github.com/lwfinger/rtlwifi_new/issues/42#issuecomment-93726319
Feel free to ask me for any additonal informations if needed. I would
really like to finally see this driver working properly.
OS: Linux 3.16.0-36-generic #48~14.04.1-Ubuntu SMP Wed Apr 15 13:11:28
UTC 2015 x86_64 x86_64 x86_64 GNU/Linux (fully updated for this
moment)
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-36-generic 3.16.0-36.48~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-36.48~14.04.1-generic 3.16.7-ckt9
Uname: Linux 3.16.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CurrentDesktop: Unity
Date: Sun May 3 20:00:40 2015
InstallationDate: Installed on 2015-05-03 (0 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64
(20150218.1)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)
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