It was more of a hardware maintenance issue than a kernel driver issue. Opening the back laptop cover, removing the mini PCI-E WLAN WiFi board and firmly re-seating it solved the problem. Also took the opportunity to blow dry (without the heater element) all the dust inside the laptop.
On Mon, Apr 4, 2016 at 9:19 PM Alphonse Ogulla <aogu...@gmail.com> wrote: > Greetings. > > I'm running Jessie on an Acer Aspire 5745DG laptop with a Broadcom > BCM43225 wireless chip. Wireless LAN has always worked flawlessly > until recently when it started disconnecting abruptly, showing not > available then disappearing from Network Manager. This can happen > anytime between 10 minutes and 1 week of working with the only way of > recovering being a reboot. Both the open-source and proprietary > drivers produce the same results. > > I have since purchased a USB WiFi adaptor (Realtek RT8188eu) as a fall > back measure but would prefer to have the main PCI WiFi adaptor > working again. Any help will be greatly appreciated. > > My System. > a) Network controller: Broadcom Corporation BCM43225 802.11b/g/n (rev 01) > b) Driver Modules: brcmsmac, mac80211, cfg80211, bcma, brcmutil, cordic > c) Kernel: Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u4 > (2016-02-29) x86_64 GNU/Linux > > What I have Tried > a) Restart Network Manager > b) Unloading and reloading the drivers > c) Trying the proprietary wl driver > d) Setting REGDOMAIN in /etc/default/crda > e) Installing rfkill and ensuring Wireless is NOT soft or hard blocked. > f) Googling and trying instructions at > > http://askubuntu.com/questions/503936/wireless-randomly-becoming-phantom-hardblocked-only-fixed-by-reboot > > Dmesg Snippet > > > > [75536.589575] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos > enabled: false (implement) > > [75536.589588] brcmsmac bcma0:0: brcms_ops_config: change power-save > mode: false (implement) > > [75536.590676] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready > > [75539.587022] wlan0: authenticate with e0:69:95:xx.xx.xx > > [75539.587103] wlan0: send auth to e0:69:95:xx.xx.xx (try 1/3) > > [75539.589717] wlan0: authenticated > > [75539.589961] wlan0: associate with e0:69:95:38:38:d3 (try 1/3) > > [75539.592452] wlan0: RX AssocResp from e0:69:95:38:38:d3 (capab=0x411 > status=0 aid=4) > > [75539.593092] brcmsmac bcma0:0: brcmsmac: brcms_ops_bss_info_changed: > associated > > [75539.593097] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos > enabled: true (implement) > > [75539.593108] wlan0: associated > > [75539.593121] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready > > [75539.596486] brcmsmac bcma0:0: wl0: brcms_c_d11hdrs_mac80211: > \xffffffd8sۚ txop exceeded phylen 159/256 dur 1778/1504 > > [75539.602524] brcmsmac bcma0:0: wl0: brcms_c_d11hdrs_mac80211: > \xffffffd8sۚ txop exceeded phylen 137/256 dur 1602/1504 > > [75563.605657] brcmsmac bcma0:0: brcms_ops_bss_info_changed: arp > filtering: 1 addresses (implement) > > [81755.330981] brcmsmac bcma0:0: wl0: brcms_c_watchdog: dead chip > > [81755.462986] brcmsmac bcma0:0: ops->tx called while down > > [81755.988124] brcmsmac bcma0:0: brcmsmac: brcms_ops_bss_info_changed: > disassociated > > [81755.988136] brcmsmac bcma0:0: brcms_ops_bss_info_changed: arp > filtering: 1 addresses (implement) > > [81755.988140] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos > enabled: false (implement) > > [81755.988145] brcmsmac bcma0:0: wl0: brcms_c_wme_setparams : no-clock > > [81755.988148] brcmsmac bcma0:0: wl0: brcms_c_wme_setparams : no-clock > > [81755.988151] brcmsmac bcma0:0: wl0: brcms_c_wme_setparams : no-clock > > [81755.988153] brcmsmac bcma0:0: wl0: brcms_c_wme_setparams : no-clock > > [81755.995598] cfg80211: Calling CRDA to update world regulatory domain > > [81756.115171] brcmsmac bcma0:0: ops->tx called while down > > [81756.115183] brcmsmac bcma0:0: ops->tx called while down > > ... > > ... > > [81756.283287] brcmsmac bcma0:0: ops->tx called while down > > [81756.330413] cfg80211: World regulatory domain updated: > > [81756.330419] cfg80211: DFS Master region: unset > > [81756.330421] cfg80211: (start_freq - end_freq @ bandwidth), > (max_antenna_gain, max_eirp), (dfs_cac_time) > > [81756.330426] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), > (N/A, 2000 mBm), (N/A) > > [81756.330429] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), > (N/A, 2000 mBm), (N/A) > > [81756.330433] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), > (N/A, 2000 mBm), (N/A) > > [81756.330437] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, > 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) > > [81756.330441] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, > 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) > > [81756.330444] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), > (N/A, 2000 mBm), (0 s) > > [81756.330447] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), > (N/A, 2000 mBm), (N/A) > > [81756.330451] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), > (N/A, 0 mBm), (N/A) > > [81756.339190] brcmsmac bcma0:0: ops->tx called while down > > [81756.339202] brcmsmac bcma0:0: ops->tx called while down > > ... > > ... > > [81756.395272] brcmsmac bcma0:0: ops->tx called while down > > > -- > Thanks & Regards > Alphonse Ogulla >
