kernel-packages team mailing list archive

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

Public bug reported:

I have 10%+ packet loss on a 802.11n 2.4GHz network, 2-1200ms latency
pinging just the gateway 192.168.1.1. The computer is ~4 feet away from
a Verizon Jetpack MiFi 5510L, with no obstructions between them. Other
clients (Ubuntu with different chipset, Windows) don't have this
problem. The mainline 4.0 kernel seemed to work much better, so I'll go
forward on the assumption this is fixed.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-34-generic 3.16.0-34.47
ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.4
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Apr 18 17:21:37 2015
HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
InstallationDate: Installed on 2015-04-09 (9 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
ProcFB:
 0 inteldrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-34-generic N/A
 linux-backports-modules-3.16.0-34-generic  N/A
 linux-firmware                             1.138.1
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/11/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L02 v02.39
dmi.board.asset.tag: MXL4090N3K
dmi.board.name: 198E
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: MXL4090N3K
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP ProDesk 400 G1 MT
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: High
         Status: Confirmed


** Tags: amd64 apport-bug kernel-fixed-upstream kernel-fixed-upstream-4.0 latest-bios-2.39 needs-reverse-bisect utopic

** Tags added: latest-bios-2.39

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1445840

Title:
  10ec:8176 10% packet loss on 802.11n network

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I have 10%+ packet loss on a 802.11n 2.4GHz network, 2-1200ms latency
  pinging just the gateway 192.168.1.1. The computer is ~4 feet away
  from a Verizon Jetpack MiFi 5510L, with no obstructions between them.
  Other clients (Ubuntu with different chipset, Windows) don't have this
  problem. The mainline 4.0 kernel seemed to work much better, so I'll
  go forward on the assumption this is fixed.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-34-generic 3.16.0-34.47
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  moniker    3063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Apr 18 17:21:37 2015
  HibernationDevice: RESUME=UUID=4afac90c-1164-4d0f-95b5-e95c04ca0070
  InstallationDate: Installed on 2015-04-09 (9 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP ProDesk 400 G1 MT
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic root=UUID=e650b88a-c6af-4c6a-998a-58f6b206b264 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-34-generic N/A
   linux-backports-modules-3.16.0-34-generic  N/A
   linux-firmware                             1.138.1
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L02 v02.39
  dmi.board.asset.tag: MXL4090N3K
  dmi.board.name: 198E
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: MXL4090N3K
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.39:bd12/11/2014:svnHewlett-Packard:pnHPProDesk400G1MT:pvr:rvnHewlett-Packard:rn198E:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP ProDesk 400 G1 MT
  dmi.sys.vendor: Hewlett-Packard

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