Found a fix :
Get into Bios (F2 At boot)
Go to : Power Management -> Wireless Radio Control -> Turn everything OFF
This prevents hardware lock of wifi card when going into suspend and
undocking from Dell dock.
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Bugs, which
*-network
description: Wireless interface
product: Wireless 8265 / 8275
vendor: Intel Corporation
physical id: 0
bus info: pci@:02:00.0
logical name: wlp2s0
version: 78
serial: d4:3b:04:38:28:b3
width: 64 bits
firmware used :
Oct 18 07:53:37 alpha kernel: [2.890212] iwlwifi :02:00.0: Found debug
destination: EXTERNAL_DRAM
Oct 18 07:53:37 alpha kernel: [2.890217] iwlwifi :02:00.0: Found debug
configuration: 0
Oct 18 07:53:37 alpha kernel: [2.890729] iwlwifi :02:00.0: loaded
Note : it might be a problem in the ilwifi driver. I am not sure.
Perhaps rf-kill does the block properly on suspend
But fails to unblock the card because the ilwifi driver does not bring it back
from "hardware lock" to "available" on resume.
So I am not sure of where the problem is, but I tend
Public bug reported:
Dell Latitude 5490
DMI: Dell Inc. Latitude 5490/0FDHF4, BIOS 1.18.0 09/10/2021
When machine goes into sleep, rfkill turns off the wifi card
Then machine goes to sleep.
When resumed, the wifi no longer works, Gnome reports "no wifi card"
Trying to use rfkill to bring the
tried to use rfkill to bring the wifi card back, fails :
after wake from suspend :
gilbert@alpha:~$ sudo rfkill list
1: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Public bug reported:
Laptop is a Dell Latitude 5490
Was using Windows 10 and installed Ubuntu 20.04
All updates are installed, all firmwares are up to date.
Machine was crashing on sleep : would go into sleep, then waking the
machine up would do a full system restart. Edited the file
Using the apt available DKMS does not work
But mounting the 6.1.16 virtual disc with Virtualbox runnable installer
works (VBox_GAs_6.1.16)
After doing :
sudo ./VBox_GAs_6.1.16.run
and rebooting
The display now works again in full screen properly.
Working config is :
-
Upgraded to latest Virtualbox version (which says it supports 5.8 kernel
series). Installed latest available extension pack for VirtualBox.
Then booted the latest kernel avaialble : 5.8.0-34-generic #37
Display is now stuck to 800x600
Latest available DKMS is not compatible with kernel 5.8 :
content of make.log :
DKMS make.log for virtualbox-guest-6.1.10 for kernel 5.8.0-34-generic (x86_64)
jeu. 07 janv. 2021 09:20:12 CET
make: Entering directory '/usr/src/linux-headers-5.8.0-34-generic'
CC [M] /var/lib/dkms/virtualbox-guest/6.1.10/build/vboxguest/VBoxGuest.o
CC [M]
Building initial module for 5.8.0-34-generic
ERROR: Cannot create report: [Errno 17] File exists:
'/var/crash/virtualbox-guest-dkms.0.crash'
Error! Bad return status for module build on kernel: 5.8.0-34-generic (x86_64)
Consult /var/lib/dkms/virtualbox-guest/6.1.10/build/make.log for more
Public bug reported:
kernel 5.8.0-34 breaks display full size/resizing in VirtualBox 6.1
going back to kernel 5.4.0-59 makes full size display working again
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-59.65-generic 5.4.78
Uname:
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