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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Marko Hrastovec, could you please provide your routers mfg., model, and
firmware version?

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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
  --- 
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  markoh     2199 F.... pulseaudio
   /dev/snd/controlC0:  markoh     2199 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 15.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=b3f4c3e3-52b4-4b7a-bb72-2f1d04fbbcca
  InstallationDate: Installed on 2013-04-12 (755 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Hewlett-Packard HP Compaq 8200 Elite SFF PC
  Package: linux (not installed)
  ProcFB:
   0 nouveaufb
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-16-generic root=UUID=94938447-8a12-42d6-8ba3-9ba5b20d585d ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-16-generic N/A
   linux-backports-modules-3.19.0-16-generic  N/A
   linux-firmware                             1.143
  RfKill:
   
  Tags:  vivid
  Uname: Linux 3.19.0-16-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-04-17 (21 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark
  _MarkForUpload: True
  dmi.bios.date: 11/10/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: J01 v02.15
  dmi.board.asset.tag: CZC204270Y
  dmi.board.name: 1495
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: CZC204270Y
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrJ01v02.15:bd11/10/2011:svnHewlett-Packard:pnHPCompaq8200EliteSFFPC:pvr:rvnHewlett-Packard:rn1495:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Compaq 8200 Elite SFF PC
  dmi.sys.vendor: Hewlett-Packard

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