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[kelu <x8ro@xxxxxxxxx>]

Lenovo ThinkPad E540 - ubuntu 14.04 -  after random time connection is
dropped !!!

$ uname -a
Linux lenovo 3.13.0-43-generic #72-Ubuntu SMP Mon Dec 8 19:35:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

$ dmesg | grep rtl
[    1.833497] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[    1.841524] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[    1.841730] rtlwifi: wireless switch is on
[  445.799362] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[  445.799807] ieee80211 phy1: Selected rate control algorithm 'rtl_rc'
[  445.800095] rtlwifi: wireless switch is on

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https://bugs.launchpad.net/bugs/1320070

Title:
  Realtek Wifi card RTL8723BE drops connection with MSI enabled

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Utopic:
  Fix Released

Bug description:
  As my testing result with ThinkPad E540 and other users' report[1],
  RTL8723BE drops connection with MSI enabled, need to backport
  329d6e299f92a591acb3a80f6d597a5f9dce7e6d "rtlwifi: rtl8723be: disable
  MSI interrupts mode"

  [1] https://bugs.launchpad.net/bugs/1240940

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