kernel-packages team mailing list archive

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

** Summary changed:

- 10ec:8176 10% packet loss on 802.11n network
+ 10ec:8176 10-20% packet loss on 802.11n network

** Description changed:

- I have 10%+ packet loss on a 802.11n 2.4GHz network, 2-1200ms latency
+ I have 10%+ packet loss on a 802.11n 2.4GHz network, 2-3200ms 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
+  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
+  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
+  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
+  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

** Description changed:

- I have 10%+ packet loss on a 802.11n 2.4GHz network, 2-3200ms 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.
+ With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
+ on a 802.11n 2.4GHz network, 2-3200ms 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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https://bugs.launchpad.net/bugs/1445840

Title:
  10ec:8176 10-20% packet loss on 802.11n network

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  With a Asus PCE-N10 PCI-E Adapter Wireless N I have 10-20% packet loss
  on a 802.11n 2.4GHz network, 2-3200ms 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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