Haw Loeung, could you please test the latest upstream kernel available (not the
daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will
allow additional upstream developers to examine the issue. Once you've tested
the upstream kernel, please comment on which kernel version specifically you
tested. If this bug is fixed in the mainline kernel, please add the following
tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER
where VERSION-NUMBER is the version number of the kernel you tested. For
example:
kernel-fixed-upstream-v3.13-rc3
This can be done by clicking on the yellow circle with a black pencil icon next
to the word Tags located at the bottom of the bug description. As well, please
remove the tag:
needs-upstream-testing
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER
As well, please remove the tag:
needs-upstream-testing
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.
** Changed in: linux (Ubuntu)
Importance: High => Low
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Summary changed:
- 8086:422b [NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss
using WiFi-N
+ 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and
packet loss using WiFi-N
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https://bugs.launchpad.net/bugs/837076
Title:
8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN
and packet loss using WiFi-N
Status in The Linux Kernel:
New
Status in “linux” package in Ubuntu:
Incomplete
Status in “linux” source package in Saucy:
Confirmed
Bug description:
I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and
I'm seeing a lot of packet loss. Some additional info is as follows:
wlan1 IEEE 802.11abgn ESSID:"star-local"
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61
Bit Rate=121.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=49/70 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:205 Invalid misc:5 Missed beacon:0
$ ping -c 20 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms
64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms
64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms
64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms
64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms
64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms
64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms
64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms
64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms
64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms
64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms
64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms
64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms
64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms
--- 192.168.2.1 ping statistics ---
20 packets transmitted, 17 received, 15% packet loss, time 19028ms
rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log
WORKAROUND: Remove and reload the module with "11n_disable=1".
wlan1 IEEE 802.11abg ESSID:"star-local"
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61
Bit Rate=54 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=49/70 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:32 Missed beacon:0
$ ping -c 20 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms
64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms
64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms
64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms
64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms
64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms
64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms
64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms
64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms
64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms
64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms
64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms
64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms
64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms
64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms
64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms
64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms
--- 192.168.2.1 ping statistics ---
20 packets transmitted, 20 received, 0% packet loss, time 19026ms
rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-9-generic 3.0.0-9.14
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hloeung 2208 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc0700000 irq 48'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,144dc098,00100100
HDA:80862805,80860101,00100000'
Controls : 18
Simple ctrls : 10
Date: Tue Aug 30 09:21:33 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
ProcEnviron:
LANGUAGE=en_AU:en_GB:en
PATH=(custom, no user)
LANG=en_AU.UTF-8
LC_MESSAGES=en_AU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-9-generic
root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro elevator=deadline apparmor=0
quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.0.0-9-generic N/A
linux-backports-modules-3.0.0-9-generic N/A
linux-firmware 1.60
RfKill:
7: phy7: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to oneiric on 2011-08-08 (21 days ago)
dmi.bios.date: 03/08/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04HL
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 90X3A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 90X3A
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
---
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hloeung 1724 F.... pulseaudio
DistroRelease: Ubuntu 13.10
Lsusb:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic
root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop
apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1
i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1
vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
RelatedPackageVersions:
linux-restricted-modules-3.11.0-7-generic N/A
linux-backports-modules-3.11.0-7-generic N/A
linux-firmware 1.113
StagingDrivers: zram
Tags: saucy staging
Uname: Linux 3.11.0-7-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev
sambashare users video
dmi.bios.date: 03/08/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04HL
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 90X3A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 90X3A
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
---
ApportVersion: 2.12.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hloeung 1724 F.... pulseaudio
DistroRelease: Ubuntu 13.10
Lsusb:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
MarkForUpload: True
Package: linux
PackageArchitecture: amd64
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic
root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop
apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1
i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1
vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
RelatedPackageVersions:
linux-restricted-modules-3.11.0-7-generic N/A
linux-backports-modules-3.11.0-7-generic N/A
linux-firmware 1.113
StagingDrivers: zram
Tags: saucy staging
Uname: Linux 3.11.0-7-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev
sambashare users video
dmi.bios.date: 03/08/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04HL
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 90X3A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 90X3A
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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