I have installed kernel 4.4.0-70 and can boot Xenial but when the Asus
USB-N13 wireless
adapter is installed the system crashes per previous descriptions. Booting
with
4.4.0-62 works.
Thanks
Grant


On Tue, Mar 21, 2017 at 11:28 AM, Thadeu Lima de Souza Cascardo <
<email address hidden>> wrote:

> This bug is awaiting verification that the kernel in -proposed solves
> the problem. Please test the kernel and update this bug with the
> results. If the problem is solved, change the tag 'verification-needed-
> xenial' to 'verification-done-xenial'. If the problem still exists,
> change the tag 'verification-needed-xenial' to 'verification-failed-
> xenial'.
>
> If verification is not done by 5 working days from today, this fix will
> be dropped from the source code, and this bug will be closed.
>
> See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
> to enable and use -proposed. Thank you!
>
>
> ** Tags added: verification-needed-xenial
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1666421
>
> Title:
>   kernel 4.4.0-63 with USB WLAN RTL8192CU freezes desktop
>
> Status in linux package in Ubuntu:
>   Fix Committed
> Status in linux source package in Xenial:
>   Fix Committed
> Status in linux source package in Yakkety:
>   Fix Committed
>
> Bug description:
>   booting PC with USB WLAN stick RTL8192CU attached on kernel
> 4.4.0-63-generic:
>   Grub works, entering full disk encryption passphrase works, but when the
> desktop comes up mouse and keyboard (via USB) are dead and the desktop also.
>
>   booting the PC without the stick attached works fine, but as soon as
>   it is attached (see syslog) mouse, keyboard and the desktop itself are
>   dead (checked by opening terminal and "watch date" - freezes, with
>   desktop still visible).
>
>   problem is resolved by booting former kernel 4.4.0-59-generic.
>
>   syslog upon attaching stick ------------------------------
> ---------------------
>   Feb 21 07:17:02 orin kernel: [  188.998338] usb 8-2: new high-speed USB
> device number 2 using xhci_hcd
>   Feb 21 07:17:02 orin kernel: [  189.129674] usb 8-2: New USB device
> found, idVendor=0bda, idProduct=8178
>   Feb 21 07:17:02 orin kernel: [  189.129682] usb 8-2: New USB device
> strings: Mfr=1, Product=2, SerialNumber=3
>   Feb 21 07:17:02 orin kernel: [  189.129687] usb 8-2: Product: USB WLAN
>   Feb 21 07:17:02 orin kernel: [  189.129691] usb 8-2: Manufacturer:
> Realtek
>   Feb 21 07:17:02 orin kernel: [  189.129694] usb 8-2: SerialNumber:
> 00e04c000001
>   Feb 21 07:17:02 orin mtp-probe: checking bus 8, device 2:
> "/sys/devices/pci0000:00/0000:00:10.1/usb8/8-2"
>   Feb 21 07:17:02 orin mtp-probe: bus: 8, device: 2 was not an MTP device
>   Feb 21 07:17:02 orin dbus[1112]: [system] Activating via systemd:
> service name='org.freedesktop.UDisks2' unit='udisks2.service'
>   Feb 21 07:17:02 orin systemd[1]: Starting Disk Manager...
>   Feb 21 07:17:02 orin udisksd[2447]: udisks daemon version 2.1.7 starting
>   Feb 21 07:17:02 orin dbus[1112]: [system] Successfully activated service
> 'org.freedesktop.UDisks2'
>   Feb 21 07:17:02 orin systemd[1]: Started Disk Manager.
>   Feb 21 07:17:02 orin udisksd[2447]: Acquired the name
> org.freedesktop.UDisks2 on the system message bus
>   Feb 21 07:17:02 orin org.gtk.vfs.AfcVolumeMonitor[1918]: Volume monitor
> alive
>   Feb 21 07:17:03 orin kernel: [  190.200286] cfg80211: World regulatory
> domain updated:
>   Feb 21 07:17:03 orin kernel: [  190.200294] cfg80211:  DFS Master
> region: unset
>   Feb 21 07:17:03 orin kernel: [  190.200297] cfg80211:   (start_freq -
> end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
>   Feb 21 07:17:03 orin kernel: [  190.200303] cfg80211:   (2402000 KHz -
> 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.200308] cfg80211:   (2457000 KHz -
> 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.200312] cfg80211:   (2474000 KHz -
> 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.200317] cfg80211:   (5170000 KHz -
> 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.200321] cfg80211:   (5250000 KHz -
> 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
>   Feb 21 07:17:03 orin kernel: [  190.200325] cfg80211:   (5490000 KHz -
> 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
>   Feb 21 07:17:03 orin kernel: [  190.200329] cfg80211:   (5735000 KHz -
> 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.200333] cfg80211:   (57240000 KHz -
> 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
>   Feb 21 07:17:03 orin kernel: [  190.223081] rtl8192cu: Chip version 0x11
>   Feb 21 07:17:03 orin kernel: [  190.625235] rtl8192cu: MAC address:
> 14:cc:20:10:43:98
>   Feb 21 07:17:03 orin kernel: [  190.625241] rtl8192cu: Board Type 0
>   Feb 21 07:17:03 orin kernel: [  190.626355] rtl_usb: rx_max_size 15360,
> rx_urb_num 8, in_ep 1
>   Feb 21 07:17:03 orin kernel: [  190.626408] rtl8192cu: Loading firmware
> rtlwifi/rtl8192cufw_TMSC.bin
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.7698]
> (wlan0): using nl80211 for WiFi device control
>   Feb 21 07:17:03 orin kernel: [  190.636625] ieee80211 phy0: Selected
> rate control algorithm 'rtl_rc'
>   Feb 21 07:17:03 orin kernel: [  190.637211] usbcore: registered new
> interface driver rtl8192cu
>   Feb 21 07:17:03 orin systemd[1]: Starting Load/Save RF Kill Switch
> Status...
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.7780]
> device (wlan0): driver supports Access Point (AP) mode
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.7798]
> manager: (wlan0): new 802.11 WiFi device (/org/freedesktop/
> NetworkManager/Devices/4)
>   Feb 21 07:17:03 orin kernel: [  190.648972] usbcore: registered new
> interface driver rtl8xxxu
>   Feb 21 07:17:03 orin dbus[1112]: [system] Activating via systemd:
> service name='fi.w1.wpa_supplicant1' unit='wpa_supplicant.service'
>   Feb 21 07:17:03 orin kernel: [  190.652729] rtl8192cu 8-2:1.0
> wlx14cc20104398: renamed from wlan0
>   Feb 21 07:17:03 orin systemd[1]: Starting WPA supplicant...
>   Feb 21 07:17:03 orin systemd[1]: Started Load/Save RF Kill Switch Status.
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.7963]
> rfkill1: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:
> 00:10.1/usb8/8-2/8-2:1.0/ieee80211/phy0/rfkill1) (driver rtl8192cu)
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.8067]
> device (wlan0): interface index 5 renamed iface from 'wlan0' to
> 'wlx14cc20104398'
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.8165]
> devices added (path: /sys/devices/pci0000:00/0000:
> 00:10.1/usb8/8-2/8-2:1.0/net/wlx14cc20104398, iface: wlx14cc20104398)
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.8166]
> device added (path: /sys/devices/pci0000:00/0000:
> 00:10.1/usb8/8-2/8-2:1.0/net/wlx14cc20104398, iface: wlx14cc20104398): no
> ifupdown configuration found.
>   Feb 21 07:17:03 orin NetworkManager[1181]: <info>  [1487657823.8174]
> device (wlx14cc20104398): state change: unmanaged -> unavailable (reason
> 'managed') [10 20 2]
>   Feb 21 07:17:03 orin kernel: [  190.685491] IPv6: ADDRCONF(NETDEV_UP):
> wlx14cc20104398: link is not ready
>   Feb 21 07:17:03 orin dbus[1112]: [system] Successfully activated service
> 'fi.w1.wpa_supplicant1'
>   Feb 21 07:17:03 orin wpa_supplicant[2491]: Successfully initialized
> wpa_supplicant
>   Feb 21 07:17:03 orin systemd[1]: Started WPA supplicant.
>   Feb 21 07:17:03 orin kernel: [  190.689851] rtl8192cu: MAC auto ON okay!
>   Feb 21 07:17:04 orin kernel: [  190.890738] rtl8192cu: Tx queue select:
> 0x05
>   Feb 21 07:17:06 orin kernel: [  193.095643] IPv6: ADDRCONF(NETDEV_UP):
> wlx14cc20104398: link is not ready
>   Feb 21 07:17:06 orin NetworkManager[1181]: <info>  [1487657826.2323]
> supplicant: wpa_supplicant running
>   Feb 21 07:17:06 orin NetworkManager[1181]: <info>  [1487657826.2328]
> device (wlx14cc20104398): supplicant interface state: init -> starting
>   Feb 21 07:17:06 orin ModemManager[1180]: <info>  Couldn't find support
> for device at '/sys/devices/pci0000:00/0000:00:10.1/usb8/8-2': not
> supported by any plugin
>   Feb 21 07:17:06 orin wpa_supplicant[2491]: dbus: wpa_dbus_get_object_properties:
> failed to get object properties: (none) none
>   Feb 21 07:17:06 orin wpa_supplicant[2491]: dbus: Failed to construct
> signal
>   Feb 21 07:17:06 orin NetworkManager[1181]: <info>  [1487657826.2973]
> device (wlx14cc20104398): supplicant interface state: starting -> ready
>   Feb 21 07:17:06 orin NetworkManager[1181]: <info>  [1487657826.2975]
> device (wlx14cc20104398): state change: unavailable -> disconnected (reason
> 'supplicant-available') [20 30 42]
>   Feb 21 07:17:06 orin kernel: [  193.165895] IPv6: ADDRCONF(NETDEV_UP):
> wlx14cc20104398: link is not ready
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2574]
> device (wlx14cc20104398): supplicant interface state: ready -> inactive
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2696]
> policy: auto-activating connection 'wlankvm'
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2711]
> device (wlx14cc20104398): Activation: starting connection 'wlankvm'
> (be9de38c-cfa5-4b6d-9672-655c0cfb7343)
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2716]
> device (wlx14cc20104398): state change: disconnected -> prepare (reason
> 'none') [30 40 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2719]
> manager: NetworkManager state is now CONNECTING
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2729]
> device (wlx14cc20104398): state change: prepare -> config (reason 'none')
> [40 50 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2733]
> device (wlx14cc20104398): Activation: (wifi) access point 'wlankvm' has
> security, but secrets are required.
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2733]
> device (wlx14cc20104398): state change: config -> need-auth (reason 'none')
> [50 60 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2787]
> device (wlx14cc20104398): state change: need-auth -> prepare (reason
> 'none') [60 40 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2797]
> device (wlx14cc20104398): state change: prepare -> config (reason 'none')
> [40 50 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2800]
> device (wlx14cc20104398): Activation: (wifi) connection 'wlankvm' has
> security, and secrets exist.  No new secrets needed.
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2801]
> Config: added 'ssid' value 'wlankvm'
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2801]
> Config: added 'scan_ssid' value '1'
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2801]
> Config: added 'key_mgmt' value 'WPA-PSK'
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2801]
> Config: added 'psk' value '<omitted>'
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.2819]
> sup-iface[0x2135cc0,wlx14cc20104398]: config: set interface ap_scan to 1
>   Feb 21 07:17:07 orin wpa_supplicant[2491]: wlx14cc20104398: SME: Trying
> to authenticate with 00:1a:4f:45:23:23 (SSID='wlankvm' freq=2462 MHz)
>   Feb 21 07:17:07 orin kernel: [  194.162920] wlx14cc20104398:
> authenticate with 00:1a:4f:45:23:23
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.3153]
> device (wlx14cc20104398): supplicant interface state: inactive ->
> authenticating
>   Feb 21 07:17:07 orin kernel: [  194.182549] wlx14cc20104398: send auth
> to 00:1a:4f:45:23:23 (try 1/3)
>   Feb 21 07:17:07 orin kernel: [  194.189946] wlx14cc20104398:
> authenticated
>   Feb 21 07:17:07 orin kernel: [  194.190420] wlx14cc20104398: associate
> with 00:1a:4f:45:23:23 (try 1/3)
>   Feb 21 07:17:07 orin wpa_supplicant[2491]: wlx14cc20104398: Trying to
> associate with 00:1a:4f:45:23:23 (SSID='wlankvm' freq=2462 MHz)
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.3284]
> device (wlx14cc20104398): supplicant interface state: authenticating ->
> associating
>   Feb 21 07:17:07 orin kernel: [  194.221407] wlx14cc20104398: RX
> AssocResp from 00:1a:4f:45:23:23 (capab=0x411 status=0 aid=3)
>   Feb 21 07:17:07 orin wpa_supplicant[2491]: wlx14cc20104398: Associated
> with 00:1a:4f:45:23:23
>   Feb 21 07:17:07 orin kernel: [  194.239524] wlx14cc20104398: associated
>   Feb 21 07:17:07 orin kernel: [  194.239592] IPv6:
> ADDRCONF(NETDEV_CHANGE): wlx14cc20104398: link becomes ready
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.3778]
> device (wlx14cc20104398): supplicant interface state: associating -> 4-way
> handshake
>   Feb 21 07:17:07 orin wpa_supplicant[2491]: wlx14cc20104398: WPA: Key
> negotiation completed with 00:1a:4f:45:23:23 [PTK=CCMP GTK=TKIP]
>   Feb 21 07:17:07 orin wpa_supplicant[2491]: wlx14cc20104398:
> CTRL-EVENT-CONNECTED - Connection to 00:1a:4f:45:23:23 completed [id=0
> id_str=]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.4083]
> device (wlx14cc20104398): supplicant interface state: 4-way handshake ->
> completed
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.4084]
> device (wlx14cc20104398): Activation: (wifi) Stage 2 of 5 (Device
> Configure) successful.  Connected to wireless network 'wlankvm'.
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.4085]
> device (wlx14cc20104398): state change: config -> ip-config (reason 'none')
> [50 70 0]
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.4108]
> dhcp4 (wlx14cc20104398): activation: beginning transaction (timeout in 45
> seconds)
>   Feb 21 07:17:07 orin NetworkManager[1181]: <info>  [1487657827.4337]
> dhcp4 (wlx14cc20104398): dhclient started with pid 2533
>   ^^^ freeze upon here ------------------------------
> -------------------------------------
>
>
>   WLAN stick (lsusb -v) ------------------------------
> ------------------------------------
>   Bus 008 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU
> 802.11n WLAN Adapter
>   Device Descriptor:
>     bLength                18
>     bDescriptorType         1
>     bcdUSB               2.00
>     bDeviceClass            0 (Defined at Interface level)
>     bDeviceSubClass         0
>     bDeviceProtocol         0
>     bMaxPacketSize0        64
>     idVendor           0x0bda Realtek Semiconductor Corp.
>     idProduct          0x8178 RTL8192CU 802.11n WLAN Adapter
>     bcdDevice            2.00
>     iManufacturer           1 Realtek
>     iProduct                2 USB WLAN
>     iSerial                 3 00e04c000001
>     bNumConfigurations      1
>     Configuration Descriptor:
>       bLength                 9
>       bDescriptorType         2
>       wTotalLength           46
>       bNumInterfaces          1
>       bConfigurationValue     1
>       iConfiguration          0
>       bmAttributes         0x80
>         (Bus Powered)
>       MaxPower              500mA
>       Interface Descriptor:
>         bLength                 9
>         bDescriptorType         4
>         bInterfaceNumber        0
>         bAlternateSetting       0
>         bNumEndpoints           4
>         bInterfaceClass       255 Vendor Specific Class
>         bInterfaceSubClass    255 Vendor Specific Subclass
>         bInterfaceProtocol    255 Vendor Specific Protocol
>         iInterface              0
>         Endpoint Descriptor:
>           bLength                 7
>           bDescriptorType         5
>           bEndpointAddress     0x81  EP 1 IN
>           bmAttributes            2
>             Transfer Type            Bulk
>             Synch Type               None
>             Usage Type               Data
>           wMaxPacketSize     0x0200  1x 512 bytes
>           bInterval               0
>         Endpoint Descriptor:
>           bLength                 7
>           bDescriptorType         5
>           bEndpointAddress     0x02  EP 2 OUT
>           bmAttributes            2
>             Transfer Type            Bulk
>             Synch Type               None
>             Usage Type               Data
>           wMaxPacketSize     0x0200  1x 512 bytes
>           bInterval               0
>         Endpoint Descriptor:
>           bLength                 7
>           bDescriptorType         5
>           bEndpointAddress     0x03  EP 3 OUT
>           bmAttributes            2
>             Transfer Type            Bulk
>             Synch Type               None
>             Usage Type               Data
>           wMaxPacketSize     0x0200  1x 512 bytes
>           bInterval               0
>         Endpoint Descriptor:
>           bLength                 7
>           bDescriptorType         5
>           bEndpointAddress     0x84  EP 4 IN
>           bmAttributes            3
>             Transfer Type            Interrupt
>             Synch Type               None
>             Usage Type               Data
>           wMaxPacketSize     0x0040  1x 64 bytes
>           bInterval               1
>   Device Qualifier (for other device speed):
>     bLength                10
>     bDescriptorType         6
>     bcdUSB               2.00
>     bDeviceClass            0 (Defined at Interface level)
>     bDeviceSubClass         0
>     bDeviceProtocol         0
>     bMaxPacketSize0        64
>     bNumConfigurations      1
>   Device Status:     0x0000
>     (Bus Powered)
>   ------------------------------------------------------------
> --------------------
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: linux-image-4.4.0-59-generic 4.4.0-59.80
>   ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
>   Uname: Linux 4.4.0-59-generic x86_64
>   ApportVersion: 2.20.1-0ubuntu2.5
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC0:  camikusch   2212 F.... pulseaudio
>    /dev/snd/controlC1:  camikusch   2212 F.... pulseaudio
>   CurrentDesktop: XFCE
>   Date: Tue Feb 21 07:42:51 2017
>   HibernationDevice: RESUME=UUID=8259bcba-b0e0-455e-87c3-1554b4a2f9c1
>   InstallationDate: Installed on 2016-04-19 (307 days ago)
>   InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64
> (20151021)
>   MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
>   ProcFB: 0 radeondrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-59-generic
> root=/dev/mapper/xubuntu--vg-root ro quiet
>   RelatedPackageVersions:
>    linux-restricted-modules-4.4.0-59-generic N/A
>    linux-backports-modules-4.4.0-59-generic  N/A
>    linux-firmware                            1.157.8
>   SourcePackage: linux
>   UpgradeStatus: Upgraded to xenial on 2016-04-22 (305 days ago)
>   dmi.bios.date: 01/14/2016
>   dmi.bios.vendor: American Megatrends Inc.
>   dmi.bios.version: P3.40
>   dmi.board.name: FM2A88X-ITX+
>   dmi.board.vendor: ASRock
>   dmi.chassis.asset.tag: To Be Filled By O.E.M.
>   dmi.chassis.type: 3
>   dmi.chassis.vendor: To Be Filled By O.E.M.
>   dmi.chassis.version: To Be Filled By O.E.M.
>   dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.40:bd01/14/2016:
> svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:
> rvnASRock:rnFM2A88X-ITX+:rvr:cvnToBeFilledByO.E.M.:ct3:
> cvrToBeFilledByO.E.M.:
>   dmi.product.name: To Be Filled By O.E.M.
>   dmi.product.version: To Be Filled By O.E.M.
>   dmi.sys.vendor: To Be Filled By O.E.M.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1666421/+subscriptions
>