Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1871408
Title:
Intel Wireless 8265 / 8275 [8086:24fd] subsystem [8086:0010]:
Upgrading 18.04 to 20.04 causes Network/WIFI Throughput Slowdowns
Status in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
Triaged
Bug description:
In brief, I upgraded Kubuntu 18.04 to 20.04 Beta.
STEPS TO REPRODUCE
1. Connecting to as yet "random"(?) websites (duckduckgo, startpage, and
OMGUbuntu for example) can result in extenuated wait times for page loading.
2. Attempting to updatwapt leads to failures to fetch.
3. Connecting to Speedtest.net resulted in 300 mbps upload and download
whereas onnecting to https://www.speakeasy.net/speedtest/ resulted in a
Connection Has Timed Out Error.
System: Host: ThinkPad Kernel: 5.4.0-21-generic x86_64 bits: 64 Desktop:
KDE Plasma 5.18.3
Distro: Ubuntu 20.04 LTS (Focal Fossa)
Machine: Type: Laptop System: LENOVO product: 20HF0012US v: ThinkPad T470s
serial: <superuser/root required>
Mobo: LENOVO model: 20HF0012US v: SDK0J40697 WIN serial:
<superuser/root required> UEFI: LENOVO v: N1WET31W (1.10 )
date: 04/17/2017
Battery: ID-1: BAT0 charge: 21.6 Wh condition: 22.0/23.5 Wh (94%)
ID-2: BAT1 charge: 21.4 Wh condition: 21.7/26.3 Wh (82%)
CPU: Topology: Dual Core model: Intel Core i5-7300U bits: 64 type: MT
MCP L2 cache: 3072 KiB
Speed: 800 MHz min/max: 400/3500 MHz Core speeds (MHz): 1: 792 2:
830 3: 809 4: 822
Graphics: Device-1: Intel HD Graphics 620 driver: i915 v: kernel
Display: x11 server: X.Org 1.20.7 driver: modesetting unloaded:
fbdev,vesa resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa
20.0.2
Audio: Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel
Sound Server: ALSA v: k5.4.0-21-generic
Network: Device-1: Intel Ethernet I219-LM driver: e1000e
IF: enp0s31f6 state: down mac: c8:5b:76:e3:99:5b
Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi
IF: wlp58s0 state: up mac: f8:59:71:49:f6:2e
Drives: Local Storage: total: 476.94 GiB used: 272.06 GiB (57.0%)
ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 960 PRO 512GB size:
476.94 GiB
Partition: ID-1: / size: 33.65 GiB used: 22.44 GiB (66.7%) fs: ext4 dev:
/dev/nvme0n1p2
ID-2: swap-1 size: 15.62 GiB used: 0 KiB (0.0%) fs: swap dev:
/dev/nvme0n1p4
Sensors: System Temperatures: cpu: 36.5 C mobo: N/A
Fan Speeds (RPM): cpu: 0
Info: Processes: 236 Uptime: 1d 19h 44m Memory: 19.43 GiB used: 6.50 GiB
(33.5%) Shell: bash inxi: 3.0.38
WORKAROUND:
This may have to do with a Kernel Regression or is at least Kernel related?
(This is getting quickly above my pay grade.) I used Grub Customizer to boot
with kernel 4.18.5-041805-generic and network connectivity/throughput is now
functioning as it should.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: vtpoet 1245 F.... pulseaudio
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
HibernationDevice: RESUME=UUID=b16057ef-f72d-4c02-9450-99b744e2e79c
InstallationDate: Installed on 2017-08-12 (971 days ago)
InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IwConfig:
wlp58s0 no wireless extensions.
enp0s31f6 no wireless extensions.
lo no wireless extensions.
MachineType: LENOVO 20HF0012US
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic
root=UUID=1d490228-1cc4-4d6b-a766-2a6a6b9dbe7d ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
RelatedPackageVersions:
linux-restricted-modules-5.4.0-21-generic N/A
linux-backports-modules-5.4.0-21-generic N/A
linux-firmware 1.187
Tags: focal
Uname: Linux 5.4.0-21-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-04-03 (5 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/17/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: N1WET31W (1.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HF0012US
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:bvrN1WET31W(1.10):bd04/17/2017:svnLENOVO:pn20HF0012US:pvrThinkPadT470s:rvnLENOVO:rn20HF0012US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T470s
dmi.product.name: 20HF0012US
dmi.product.sku: LENOVO_MT_20HF_BU_Think_FM_ThinkPad T470s
dmi.product.version: ThinkPad T470s
dmi.sys.vendor: LENOVO
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