This bug is missing log files that will aid in diagnosing the problem. >From a terminal window please run:
apport-collect 1453028 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: utopic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1453028 Title: Kernel drops connection with rtl8192cu fixed driver Status in linux package in Ubuntu: Incomplete Bug description: I have experienced a strange error a month ago when Ubuntu 14.10 upgraded the linux kernel. rtl8192cu fixed driver stopped working. The error is mentioned here: http://askubuntu.com/questions/546195/ubuntu-14-10-rtl8192cu- bug/609057#609057 The kernel 3.16.0-33-generic (maybe also some older) had this error and an update from 3.16.0-33-generic to 3.16.0-34-generic fixed the issue. Identical issue popped up again with a kernel update in Ubuntu 15.04 from 3.19.0-15 to 3.19.0-16. Obviously the patches applied in 3.16.0-34-generic shall be applied to 3.19.0-16-generic again. The following lines appear in the syslog all the time and the wireless connection is not working: May 8 08:01:20 computer NetworkManager[969]: <info> (wlan4): supplicant interface state: associating -> disconnected May 8 08:01:20 computer NetworkManager[969]: <info> (wlan4): supplicant interface state: disconnected -> scanning May 8 08:01:21 computer kernel: [70436.589191] survey done event(1c) band:0 for wlan4 May 8 08:01:24 computer kernel: [70439.508489] ==>rtw_ps_processor .fw_state(8) May 8 08:01:24 computer kernel: [70439.508494] ==>ips_enter cnts:952 May 8 08:01:24 computer kernel: [70439.508496] ===> rtw_ips_pwr_down................... May 8 08:01:24 computer kernel: [70439.508959] ====> rtw_ips_dev_unload... May 8 08:01:24 computer kernel: [70439.532197] usb_read_port_cancel May 8 08:01:24 computer kernel: [70439.532398] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:24 computer kernel: [70439.532669] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:24 computer kernel: [70439.532898] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:24 computer kernel: [70439.533149] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:24 computer kernel: [70439.533207] usb_write_port_cancel May 8 08:01:24 computer kernel: [70439.533222] ==> rtl8192cu_hal_deinit May 8 08:01:24 computer kernel: [70439.533224] bkeepfwalive(0) May 8 08:01:24 computer kernel: [70439.533225] card disble without HWSM........... May 8 08:01:24 computer kernel: [70439.538277] <=== rtw_ips_pwr_down..................... in 28ms May 8 08:01:26 computer kernel: [70441.592759] _rtw_pwr_wakeup call ips_leave.... May 8 08:01:26 computer kernel: [70441.592765] ==>ips_leave cnts:952 May 8 08:01:26 computer kernel: [70441.592766] ===> rtw_ips_pwr_up.............. May 8 08:01:26 computer kernel: [70441.592770] ===> ips_netdrv_open......... May 8 08:01:26 computer kernel: [70441.597595] ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC May 8 08:01:26 computer kernel: [70441.597599] FirmwareDownload92C accquire FW from embedded image May 8 08:01:26 computer kernel: [70441.597602] fw_ver=v88, fw_subver=2, sig=0x88c0 May 8 08:01:26 computer kernel: [70441.622978] fw download ok! May 8 08:01:26 computer kernel: [70441.622981] Set RF Chip ID to RF_6052 and RF type to 2. May 8 08:01:27 computer kernel: [70442.002524] IQK:Start!!! May 8 08:01:27 computer kernel: [70442.014279] Path A IQK Success!! May 8 08:01:27 computer kernel: [70442.019030] Path B IQK Success!! May 8 08:01:27 computer kernel: [70442.027535] Path A IQK Success!! May 8 08:01:27 computer kernel: [70442.032330] Path B IQK Success!! May 8 08:01:27 computer kernel: [70442.044917] Path A IQK Success!! May 8 08:01:27 computer kernel: [70442.049671] Path B IQK Success!! May 8 08:01:27 computer kernel: [70442.054424] IQK: final_candidate is 1 May 8 08:01:27 computer kernel: [70442.054428] IQK: RegE94=100 RegE9C=3f9 RegEA4=fc RegEAC=3ff RegEB4=101 RegEBC=8 RegEC4=fe RegECC=1 May 8 08:01:27 computer kernel: [70442.054428] Path A IQ Calibration Success ! May 8 08:01:27 computer kernel: [70442.056546] Path B IQ Calibration Success ! May 8 08:01:27 computer kernel: [70442.169850] pdmpriv->TxPowerTrackControl = 1 May 8 08:01:27 computer kernel: [70442.174477] rtl8192cu_hal_init in 584ms May 8 08:01:27 computer kernel: [70442.187114] <=== rtw_ips_pwr_up.............. in 596ms May 8 08:01:27 computer kernel: [70442.187233] ==> ips_leave.....LED(0x00028080)... May 8 08:01:28 computer kernel: [70443.496206] survey done event(1e) band:0 for wlan4 May 8 08:01:29 computer kernel: [70444.190567] ==>rtw_ps_processor .fw_state(8) May 8 08:01:29 computer kernel: [70444.190572] ==>ips_enter cnts:953 May 8 08:01:29 computer kernel: [70444.190574] ===> rtw_ips_pwr_down................... May 8 08:01:29 computer kernel: [70444.190825] ====> rtw_ips_dev_unload... May 8 08:01:29 computer kernel: [70444.214200] usb_read_port_cancel May 8 08:01:29 computer kernel: [70444.214400] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:29 computer kernel: [70444.214650] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:29 computer kernel: [70444.214901] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:29 computer kernel: [70444.215150] usb_read_port_complete()-1284: RX Warning! bDriverStopped(0) OR bSurpriseRemoved(0) bReadPortCancel(1) May 8 08:01:29 computer kernel: [70444.215194] usb_write_port_cancel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1453028/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp