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[Bug 1417552] Re: iwlwifi 7260 loses connection, performance degrades

 

Really? This is a very small laptop with no CD drive, it also has a
small SSD, so it does not have windows. I tried making a windows rescue
USB drive, but it doesn't do anything because there is no windows on the
drive, and on top it wiped the GRUB bootblock. The only way for me to
upgrade the BIOS would be to install windows, update the BIOS, then re-
install ubuntu. Do you really want me to do all this, while the benefit
is quite questionable for this problem?

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https://bugs.launchpad.net/bugs/1417552

Title:
  iwlwifi 7260 loses connection, performance degrades

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I have a Sony Vaio Pro 11 which has a intel 7260 wifi chip. I've had
  nothing but trouble with it (and from reading forums, I'm not alone).
  I file this bug to help fix issues.

  My findings with recent kernels: laptop has Ubuntu Vivid installed,
  which comes with the 3.18 kernel and 23.11.10 firmware. With the -10
  firmware, often the wifi doesn't even associate with the access point,
  while all other devices in the house can. When it does connect, the
  speed is fast for about 1 second (around 10 MB/s), en then drops to
  20-60 kbps, or loses connection altogether. With self-compiled
  3.19-rc6 (with latest iwlwifi-fixes merged) it's the same. I tried the
  23.12.10 firmware, but it is the same.

  When I switch to the 25.228.9 firmware, it is much better, however,
  speed still drops every now and then, but much less than with the -10
  firmware. Kernel version doesn't seem to matter much, firmware version
  seems to drive all variability.

  This problem is for both bands 2.4 GHz and 5 GHz.

  I can provide all debugging info you request. I will provide the minimum logging tonight when I get home.
  --- 
  ApportVersion: 2.15.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jos        2160 F.... pulseaudio
   /dev/snd/controlC0:  jos        2160 F.... pulseaudio
  CurrentDesktop: MATE
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=29ac20b8-1469-4865-b42a-9c1e67ce0d81
  InstallationDate: Installed on 2015-01-27 (7 days ago)
  InstallationMedia: Ubuntu MATE 15.04 "Vivid Vervet" - Alpha2 amd64 (20150123)
  MachineType: Sony Corporation SVP1121D4E
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.18.0-12-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
  RelatedPackageVersions:
   linux-restricted-modules-3.18.0-12-generic N/A
   linux-backports-modules-3.18.0-12-generic  N/A
   linux-firmware                             1.141
  Tags:  vivid
  Uname: Linux 3.18.0-12-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: 11/05/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R1041V7
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1041V7:bd11/05/2013:svnSonyCorporation:pnSVP1121D4E:pvrC60C907J:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVP1121D4E
  dmi.product.version: C60C907J
  dmi.sys.vendor: Sony Corporation

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