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[crickert <1319366@xxxxxxxxxxxxxxxxxx>]

I managed to get the wifi running (again), after very many annyoing month with Ubuntu.
So far I haven't experienced any any freezes. And this is what I did:

1. Download the latest wifi driver from Marvel:
http://git.marvell.com/?p=mwifiex-firmware.git;a=blob;f=mrvl/usb8797_uapsta.bin;h=0ce6c4ec307880d34bbef3b6ccd359617914f156;hb=e92f8b3f65443764297b947b1843955d9a65dde7

2. Backup and replace the outdated firmware file with the driver you just downloaded:
sudo mv /lib/firmware/mrvl/usb8797_uapsta.bin /lib/firmware/mrvl/usb8797_uapsta.bin.bak
sudo cp ./mrvl_usb8797_uapsta.bin /lib/firmware/mrvl/usb8797_uapsta.bin

3. Update Ubuntu's kernel to the latest stable mainline version:
https://wiki.ubuntu.com/Kernel/MainlineBuilds#Installing_upstream_kernels_.28manually.29
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily/

4. Restart your system and boot the latest kernel.

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https://bugs.launchpad.net/bugs/1319366

Title:
  1286:2044 [Microsoft Surface Pro 2] Marvell 88W8797 not working in
  14.04 kernel 3.13.0-24-generic

Status in linux package in Ubuntu:
  Triaged

Bug description:
  Marvell WiFi on Surface Pro 2 does not work in a fresh install of 14.04 with 3.13.0-24 kernel. I had the same issue in 12.04, but others reported that this was resolved in Raring http://askubuntu.com/questions/257600/marvells-wireless-driver-not-recognized/262010 . The drivers mentioned in the post are already in place:
  $ modinfo mwifiex_usb
  filename:       /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/mwifiex/mwifiex_usb.ko
  firmware:       mrvl/usb8797_uapsta.bin
  license:        GPL v2
  version:        1.0
  description:    Marvell WiFi-Ex USB Driver version1.0
  author:         Marvell International Ltd.
  srcversion:     68371BE7AAF1BE02463ED67
  alias:          usb:v1286p2044d*dc*dsc*dp*icFFiscFFipFFin*
  alias:          usb:v1286p2043d*dc*dsc*dp*ic*isc*ip*in*
  depends:        mwifiex
  intree:         Y
  vermagic:       3.13.0-24-generic SMP mod_unload modversions
  signer:         Magrathea: Glacier signing key
  sig_key:        69:B0:D0:A7:9B:85:D9:06:21:70:6E:8D:06:60:4D:73:0B:35:9F:C0
  sig_hashalgo:   sha512

  /lib/firmware/mrvl$ ls
  pcie8897_uapsta.bin  sd8688.bin  sd8688_helper.bin  sd8787_uapsta.bin  sd8797_uapsta.bin  sd8897_uapsta.bin  usb8797_uapsta.bin

  And system surely recognises the Marvell WiFi:
  $ lsusb
  Bus 001 Device 002: ID 8087:8000 Intel Corp.
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 002 Device 007: ID 045e:0795 Microsoft Corp.
  Bus 002 Device 006: ID 045e:0794 Microsoft Corp.
  Bus 002 Device 005: ID 03eb:8209 Atmel Corp.
  Bus 002 Device 004: ID 045e:079a Microsoft Corp.
  Bus 002 Device 010: ID 1286:2044 Marvell Semiconductor, Inc.
  Bus 002 Device 025: ID 046d:c52b Logitech, Inc. Unifying Receiver
  Bus 002 Device 023: ID 07d1:3c16 D-Link System DWA-125 Wireless N 150 Adapter(rev.A2) [Ralink RT3070]
  Bus 002 Device 020: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  But when creating a new WiFi connection using network manager, the
  only mac address it sees is that of my external D-Link receiver.

  ---
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  keyvan     1525 F.... pulseaudio
   /dev/snd/controlC0:  keyvan     1525 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=823ecc1c-67d4-48fc-b2c6-a744cd103957
  InstallationDate: Installed on 2014-05-12 (2 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Microsoft Corporation Surface Pro 2
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=7ed6c4f4-96f3-4247-ba41-5dd16f0dd998 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127.2
  Tags:  trusty
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/14/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2.04.0450
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Surface Pro 2
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 1
  dmi.chassis.asset.tag: 0
  dmi.chassis.type: 11
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.04.0450:bd01/14/2014:svnMicrosoftCorporation:pnSurfacePro2:pvr1:rvnMicrosoftCorporation:rnSurfacePro2:rvr1:cvnMicrosoftCorporation:ct11:cvr1:
  dmi.product.name: Surface Pro 2
  dmi.product.version: 1
  dmi.sys.vendor: Microsoft Corporation

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