Comment 57 for bug 1320070

Revision history for this message
y s (yusuhail) wrote :

I see the same bug on my Lenovo G50-45. Unloading and reloading the module as in #56 gets me back online. However, its not a permanent solution as it will again drop intermittently.

Kernel info:
 3.16.0-34-generic #45~14.04.1-Ubuntu SMP

According to http://askubuntu.com/questions/526214/how-to-set-parameters-for-realtek-wifi-rtl8723 the culprit could be powersave.

Looking at the module parameters, it seems msi is 0 by default.

modinfo rtl8723be
filename: /lib/modules/3.16.0-34-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723be/rtl8723be.ko
firmware: rtlwifi/rtl8723befw.bin
description: Realtek 8723BE 802.11n PCI wireless
license: GPL
author: Realtek WlanFAE <email address hidden>
author: PageHe <email address hidden>
srcversion: C94095C986767A931B924EF
alias: pci:v000010ECd0000B723sv*sd*bc*sc*i*
depends: rtlwifi,rtl8723-common,rtl_pci,btcoexist,mac80211
intree: Y
vermagic: 3.16.0-34-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: 4A:55:71:9E:5C:6C:61:54:BE:06:25:D0:48:83:AE:41:1B:76:41:AD
sig_hashalgo: sha512
parm: swlps:bool
parm: swenc:using hardware crypto (default 0 [hardware])
 (bool)
parm: ips:using no link power save (default 1 is open)
 (bool)
parm: fwlps:using linked fw control power save (default 1 is open)
 (bool)
parm: msi:Set to 1 to use MSI interrupts mode (default 0)
 (bool)
parm: debug:Set debug level (0-5) (default 0) (int)

How can I help (by testing) to get this fixed? Is there a way for me to look at logs or some module/device state to see if msi or power save triggered the problem?