[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1887214
Title:
[18.04 LTS] Intel 8265 / 8275 [8086:24fd] Subsystem [8086:0010]
Somehow wifi network latency is too high (1000~3000 ms)
Status in linux package in Ubuntu:
Expired
Bug description:
[Problem description]
Somehow wifi network latency is too high. (1000~3000 ms)
DUT:
- Product: Lenovo X1C6
- BIOS Information:
Vendor: LENOVO
Version: N23ET74W (1.49 )
Release Date: 06/03/2020
- Wifi information:
Intel Wireless 8265 / 8275
driverversion=5.3.0-62-generic firmware=36.9f0a2d68.0
- OS: Ubuntu 18.04.4 LTS/Linux 5.3.0-62-generic/X86-64
[Test steps]
1. Boot up Ubuntu 18.04.4 LTS.
2. Open terminal.
3. To execute ping command, and target is in the local network. (For
example: local gateway)
4. After few mins, I noticed that network latency will get worse.
Sample output:
64 bytes from 192.168.1.1: icmp_seq=714 ttl=64 time=2.31 ms
64 bytes from 192.168.1.1: icmp_seq=715 ttl=64 time=1.61 ms
64 bytes from 192.168.1.1: icmp_seq=716 ttl=64 time=8.93 ms
64 bytes from 192.168.1.1: icmp_seq=717 ttl=64 time=59.0 ms
64 bytes from 192.168.1.1: icmp_seq=718 ttl=64 time=101 ms
64 bytes from 192.168.1.1: icmp_seq=719 ttl=64 time=155 ms
64 bytes from 192.168.1.1: icmp_seq=720 ttl=64 time=212 ms
64 bytes from 192.168.1.1: icmp_seq=721 ttl=64 time=347 ms
64 bytes from 192.168.1.1: icmp_seq=722 ttl=64 time=485 ms
64 bytes from 192.168.1.1: icmp_seq=723 ttl=64 time=663 ms
64 bytes from 192.168.1.1: icmp_seq=724 ttl=64 time=914 ms
64 bytes from 192.168.1.1: icmp_seq=725 ttl=64 time=1149 ms
64 bytes from 192.168.1.1: icmp_seq=726 ttl=64 time=1490 ms
64 bytes from 192.168.1.1: icmp_seq=727 ttl=64 time=1828 ms
64 bytes from 192.168.1.1: icmp_seq=728 ttl=64 time=2154 ms
64 bytes from 192.168.1.1: icmp_seq=729 ttl=64 time=2609 ms
64 bytes from 192.168.1.1: icmp_seq=730 ttl=64 time=2851 ms
64 bytes from 192.168.1.1: icmp_seq=731 ttl=64 time=2825 ms
64 bytes from 192.168.1.1: icmp_seq=732 ttl=64 time=2184 ms
64 bytes from 192.168.1.1: icmp_seq=733 ttl=64 time=2582 ms
64 bytes from 192.168.1.1: icmp_seq=734 ttl=64 time=1898 ms
64 bytes from 192.168.1.1: icmp_seq=735 ttl=64 time=1377 ms
5. Same machine when I switched to W10 then I didn't encounter this
symptom.
[Expected result]
Wifi network latency should not over 2~3 ms at least.
[Actual result]
Wifi network latency is too high.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lawrence 2772 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-05-30 (772 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: LENOVO 20KGS0FV00
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-62-generic
root=UUID=65f0f796-b6da-4d46-98a5-325713eee95b ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18
RelatedPackageVersions:
linux-restricted-modules-5.3.0-62-generic N/A
linux-backports-modules-5.3.0-62-generic N/A
linux-firmware 1.173.18
Tags: bionic
Uname: Linux 5.3.0-62-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/03/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N23ET74W (1.49 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20KGS0FV00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN23ET74W(1.49):bd06/03/2020:svnLENOVO:pn20KGS0FV00:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KGS0FV00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 6th
dmi.product.name: 20KGS0FV00
dmi.product.sku: LENOVO_MT_20KG_BU_Think_FM_ThinkPad X1 Carbon 6th
dmi.product.version: ThinkPad X1 Carbon 6th
dmi.sys.vendor: LENOVO
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