Public bug reported:
Since May 2020 my wifi causes huge problems on my Kubuntu 18.04LTS
(HWE).
- stuttering mouse
- slow networking
Disabling Wifi or, using another USB adapter solves the problems:
dmesg:
iwlwifi 0000:3b:00.0: Applying debug destination EXTERNAL_DRAM
iwlwifi 0000:3b:00.0: Collecting data: trigger 2 fired.
ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:3b:00.0: Applying debug destination EXTERNAL_DRAM
iwlwifi 0000:3b:00.0: Applying debug destination EXTERNAL_DRAM
iwlwifi 0000:3b:00.0: FW already configured (0) - re-configuring
lspci :
3b:00 lspci -kvnn | sed -n '/Network/,/^$/ p'
3b:00.0 Network controller [0280]: Intel Corporation Wireless-AC 9260
[8086:2526] (rev 29)
Subsystem: Intel Corporation Device [8086:0014]
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at dc100000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi.0 Network controller [0280]: Intel Corporation
Wireless-AC 9260 [8086:2526] (rev 29)
Subsystem: Intel Corporation Device [8086:0014]
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at dc100000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.3.0-51-generic 5.3.0-51.44~18.04.2
ProcVersionSignature: Ubuntu 5.3.0-51.44~18.04.2-generic 5.3.18
Uname: Linux 5.3.0-51-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: KDE
Date: Tue May 19 09:51:10 2020
InstallationDate: Installed on 2018-07-29 (659 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1879452
Title:
iwlwifi regression AC9260 18.04LTS on HWE kernel
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