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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1895482
Title:
new update of Ubuntu Focal Fossa does not recognize any Wifi network
Status in linux package in Ubuntu:
Confirmed
Bug description:
When the system was upgraded to Ubuntu version 20.04, WiFi stopped
working. It does not recognize any network, or it does recognize it
when the computer is turned on but soon after it stops recognizing it
and the connection is lost, so there is no other option but to use the
Internet connected with an Ethernet cable.
The solution I found to this problem is to select from grub the Kernel
versions that did not have this problem (5.3). That worked fine so far, but
yesterday the kernel was updated again, and the system removed the 5.3 kernel
working versions, so I can no longer select them from grub.
It only left several versions 5.4.0, which all have this same problem
I downloaded the packages of various kernel 5.3.0 versions (headers,
modules and image) from https://packages.ubuntu.com/, and I can get
them up fine from grub, but when I do this, for some reason the
computer works very badly (the screens take time to load, the mouse
moves slowly, the machine works slowly, not all the menu options
appear, etc)
diego@infra-ThinkPad-E490:~$ lsb_release -rd
Description: Ubuntu 20.04.1 LTS
Release: 20.04
diego@infra-ThinkPad-E490:~$ apt-cache policy pkgname
N: Unable to locate package pkgname
#Computer specs:
infra-thinkpad-e490
description: Computer
width: 64 bits
capabilities: smp vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 15GiB
*-cpu
product: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
size: 3855MHz
capacity: 4600MHz
width: 64 bits
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0
version: 10
serial: e8:6a:64:e7:ea:91
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168
driverversion=8.048.00-NAPI latency=0 link=no multicast=yes port=twisted
pair
resources: irq:125 ioport:3000(size=256)
memory:a1304000-a1304fff memory:a1300000-a1303fff
*-generic
description: Wireless interface
product: RTL8822BE 802.11a/b/g/n/ac WiFi adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlp5s0
version: ff
serial: f8:a2:d6:f2:20:f9
width: 32 bits
clock: 66MHz
capabilities: bus_master vga_palette cap_list ethernet
physical wireless
configuration: broadcast=yes driver=rtw_pci
driverversion=5.4.0-47-generic firmware=N/A latency=255 link=no maxlatency=255
mingnt=255
multicast=yes wireless=IEEE 802.11
resources: irq:138 ioport:2000(size=256)
memory:a1200000-a120ffff
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.25
ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
Uname: Linux 5.4.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 13 20:29:04 2020
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to focal on 2020-08-12 (32 days ago)
VarLogDistupgradeApttermlog: Error: [Errno 13] Permission denied:
'/var/log/dist-upgrade/apt-term.log'
VarLogDistupgradeTermlog:
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