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[steve cohen <steve@xxxxxxxx>]

kernel-bug-exists-upstream
kernel-bug-exists-upstream-V3.18-vivid

download of the V3.18-vivid with common and specific header and the generic adm64.deb
dpkg -i *.deb worked with no errors
the kernel booted with out issue and is running fine
Linux skc 3.18.0-031800-generic #201412071935 SMP Mon Dec 8 00:36:34 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux


syslog:
Dec 14 12:53:48 skc kernel: [  219.200113] usb 1-2: new high-speed USB device number 5 using xhci_hcd
Dec 14 12:53:48 skc kernel: [  219.390380] usb 1-2: New USB device found, idVendor=04c5, idProduct=11fc
Dec 14 12:53:48 skc kernel: [  219.390384] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Dec 14 12:53:48 skc kernel: [  219.390563] usb 1-2: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
Dec 14 12:53:48 skc kernel: [  219.390567] usb 1-2: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes
Dec 14 12:53:48 skc colord: Device added: sysfs-04c5-11fc

the lsusb shows the scanner present. i've plugged it into what is
supposidly the usb2.0 plug and while it shows it is on bus(hub)1 the new
kernel boot as re-mapped the numbers as below:

[    0.756337] xhci_hcd 0000:00:14.0: xHCI Host Controller
[    0.756342] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
[    0.756425] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
[    0.756439] xhci_hcd 0000:00:14.0: irq 25 for MSI/MSI-X
[    0.756489] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    0.756490] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.756491] usb usb1: Product: xHCI Host Controller
[    0.756492] usb usb1: Manufacturer: Linux 3.18.0-031800-generic xhci-hcd
[    0.756493] usb usb1: SerialNumber: 0000:00:14.0
[    0.756570] hub 1-0:1.0: USB hub found
[    0.756585] hub 1-0:1.0: 14 ports detected

ie it is still using the xHCI host controller

i no longer get core dump warning. scanimage -L  simply does not find
the device. simple-scan says no scanner available. sane-find-scanner
does not detect the scanner. So technically it has gone form seeable but
not working to invisible.

A possible test would be to make the xHCI a module or a kernel flag such
it could be blacklisted and see if the EHIC actually works on 14.04.

-- 
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https://bugs.launchpad.net/bugs/1402335

Title:
  scanimage -L finds fitjitsu 04c5:11fc but if repeated does not find it

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Using my System76 gazel, with a fully updated Ubuntu GNOME 14.04, my
  Fujitsu  6110 Scanner doesn't work via either USB 2.0 or 3.0.

  Dec 13 21:51:58 skc kernel: [24032.034368] usb 3-6: New USB device found, idVendor=04c5, idProduct=11fc
  Dec 13 21:51:58 skc kernel: [24032.034377] usb 3-6: New USB device strings: Mfr=0, Product=0, SerialNumber=0
  Dec 13 21:51:58 skc kernel: [24032.034669] usb 3-6: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
  Dec 13 21:51:58 skc kernel: [24032.034682] usb 3-6: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes
  Dec 13 21:51:58 skc colord: Device added: sysfs-04c5-11fc

  if i re-plug it and type:
  scanimage -L
  device `fujitsu:fi-6110dj:28760' is a FUJITSU fi-6110dj scanner
  scanimage -L

  No scanners were identified. If you were expecting something different,
  check that the scanner is plugged in, turned on and detected by the
  sane-find-scanner tool (if appropriate). Please read the documentation
  which came with this software (README, FAQ, manpages).

  Re-plug it back and type:
  scanimage
  scanimage: open of device fujitsu:fi-6110dj:28760 failed: Error during device I/O

  while I'm getting the error on scanning, I'm not sure this is a usb2 usb3 xhci_hcd issue as per dmesg:
  [    0.977252] xhci_hcd 0000:00:14.0: xHCI Host Controller
  [    0.977255] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3
  [    0.977339] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
  [    0.977355] xhci_hcd 0000:00:14.0: irq 41 for MSI/MSI-X
  [    0.977403] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
  [    0.977405] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
  [    0.977406] usb usb3: Product: xHCI Host Controller
  [    0.977407] usb usb3: Manufacturer: Linux 3.13.0-43-generic xhci_hcd
  [    0.977408] usb usb3: SerialNumber: 0000:00:14.0
  [    0.977491] hub 3-0:1.0: USB hub found
  [    0.977507] hub 3-0:1.0: 14 ports detected

  lsusb
  Bus 002 Device 002: ID 8087:8000 Intel Corp.
  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 001 Device 002: ID 8087:8008 Intel Corp.
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 003 Device 003: ID 5986:055c Acer, Inc
  Bus 003 Device 002: ID 8087:07dc Intel Corp.
  Bus 003 Device 048: ID 04c5:11fc Fujitsu, Ltd
  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  even though a 'no find scanner' after the error the lsusb above
  remains the same.

  WORKAROUND: The scanner works perfectly on a USB 2.0 port in Ubuntu
  12.04 system with no driver added.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xsane 0.998-5ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  Uname: Linux 3.13.0-43-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Dec 13 22:05:40 2014
  InstallationDate: Installed on 2014-12-12 (2 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xsane
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  steve      2516 F.... pulseaudio
   /dev/snd/controlC1:  steve      2516 F.... pulseaudio
   /dev/snd/pcmC1D0p:   steve      2516 F...m pulseaudio
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=c3c23fb2-5dda-48d2-95cd-622fad1392f1
  InstallationDate: Installed on 2014-12-12 (2 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: System76, Inc. Gazelle Professional
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=523a0d9c-8e0c-4551-9f86-4a3133015d79 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-43-generic N/A
   linux-backports-modules-3.13.0-43-generic  N/A
   linux-firmware                             1.127.10
  Tags:  trusty
  Uname: Linux 3.13.0-43-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 07/28/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.03.06RS761
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: Gazelle Professional
  dmi.board.vendor: System76, Inc.
  dmi.board.version: gazp9b
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: gazp9b
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.03.06RS761:bd07/28/2014:svnSystem76,Inc.:pnGazelleProfessional:pvrgazp9b:rvnSystem76,Inc.:rnGazelleProfessional:rvrgazp9b:cvnSystem76,Inc.:ct9:cvrgazp9b:
  dmi.product.name: Gazelle Professional
  dmi.product.version: gazp9b
  dmi.sys.vendor: System76, Inc.

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