Bug #1915491 “Dell Latitude E7470 wifi adapter (Intel Corporatio...” : Bugs : network-manager package : Ubuntu

Revision history for this message

Md. Rezwanul Haque Razib (rezwanul-haque) wrote on 2021-02-12:

#1

CurrentDmesg.txt Edit (70.1 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (24.1 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (169.1 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (10.2 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (1.1 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (381 bytes, text/plain; charset="utf-8")
Lsusb-t.txt Edit (580 bytes, text/plain; charset="utf-8")
Lsusb-v.txt Edit (32.7 KiB, text/plain; charset="utf-8")
MonitorsUser.xml.txt Edit (1.9 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (5.8 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.9 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (7.8 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (216.0 KiB, text/plain; charset="utf-8")
XorgLog.txt Edit (66.4 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (72.8 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (28.5 KiB, text/plain; charset="utf-8")
acpidump.txt Edit (851.9 KiB, text/plain; charset="utf-8")
xdpyinfo.txt Edit (144.9 KiB, text/plain; charset="utf-8")

Ubuntu Foundations Team Bug Bot (crichton) on 2021-02-12

affects:

ubuntu → xorg (Ubuntu)

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-02-12:

#2

Thanks for the bug report. I can see from your Lspci.txt that there definitely is an Intel wifi card installed. So this looks like some kind of GUI (or intermediate daemon) bug.

summary:	- Wifi Adpter Not found + Wifi adapter installed but can't be found in Settings
affects:	xorg (Ubuntu) → gnome-control-center (Ubuntu)

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-02-12: Re: Wifi adapter installed but can't be found in Settings

#3

Next time the problem happens please try turning on wifi by pressing Fn+PrtScr. If that doesn't fix it then please open a Terminal while the problem is happening and run:

rfkill > rfkill.txt

and attach the resulting text file here.

Changed in gnome-control-center (Ubuntu):
status:	New → Incomplete

Revision history for this message

Jeremy (wa113y3s) wrote on 2021-02-13:

#4

What results do you get from this command in terminal before and after the issue

iwconfig

Revision history for this message

Md. Rezwanul Haque Razib (rezwanul-haque) wrote on 2021-02-13: Re: [Bug 1915491] Re: Wifi adapter installed but can't be found in Settings

#5

Screenshot from 2021-02-14 00-14-05.png Edit (631.8 KiB, image/png; name="Screenshot from 2021-02-14 00-14-05.png")
iwconfig(wifi-conected)-output.txt Edit (430 bytes, text/plain; charset="US-ASCII"; name="iwconfig(wifi-conected)-output.txt")

Download full text (3.9 KiB)

[image: Screenshot from 2021-02-14 00-14-05.png]

Currently, While I'm connected to wifi, I'm getting the above output on the
terminal when executing `iwconfig` command. If I face the issue again I
will post the result to this mail.

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Sat, Feb 13, 2021 at 9:30 PM Jeremy <email address hidden> wrote:

> What results do you get from this command in terminal before and after
> the issue
>
> iwconfig
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
> Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
> Incomplete
>
> Bug description:
> # Summary:
> > ## Wifi Adpter Not found
>
> ## Steps to Reproduce:
> - I don't know
>
>
> ## Expected Results:
> Wifi should always be available
>
> ## Problem Description:
> Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
> * * *
>
>
> Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: xorg 1:7.7+19ubuntu14
> ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
> Uname: Linux 5.8.0-43-generic x86_64
> ApportVersion: 2.20.11-0ubuntu27.16
> Architecture: amd64
> BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
> CasperMD5CheckResult: skip
> CompositorRunning: None
> CurrentDesktop: ubuntu:GNOME
> Date: Fri Feb 12 11:13:48 2021
> DistUpgraded: Fresh install
> DistroCodename: focal
> DistroVariant: ubuntu
> ExtraDebuggingInterest: I just need to know a workaround
> GraphicsCard:
> Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
> Subsystem: Dell Latitude E7470 [1028:06dc]
> InstallationDate: Installed on 2021-01-06 (36 days ago)
> InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
> MachineType: Dell Inc. Latitude E7470
> ProcEnviron:
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/usr/bin/zsh
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
> SourcePackage: xorg
> Symptom: display
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 08/20/2018
> dmi.bios.release: 1.20
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: 1.20.3
> dmi.board.name: 047I7V
> dmi.board.vendor: Dell Inc.
> dmi.board.version: A00
> dmi.chassis.type: 9
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvr1.20.3:bd08/20/2018:br1.20:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn047I7V:rvrA00:cvnDellInc.:ct9:cvr:
> dmi.product.family: Latitude
> dmi.product.name: Latitude E7470
> dmi.p...

[image: Screenshot from 2021-02-14 00-14-05.png]

Currently, While I'm connected to wifi, I'm getting the above output on the
terminal when executing `iwconfig` command. If I face the issue again I
will post the result to this mail.

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Sat, Feb 13, 2021 at 9:30 PM Jeremy <1915491@bugs.launchpad.net> wrote:

> What results do you get from this command in terminal before and after
> the issue
>
> iwconfig
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
>   Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
>   Incomplete
>
> Bug description:
>   # Summary:
>   > ## Wifi Adpter Not found
>
>   ## Steps to Reproduce:
>   - I don't know
>
>
>   ## Expected Results:
>   Wifi should always be available
>
>   ## Problem Description:
>   Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
>   * * *
>
>
>   Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 20.04
>   Package: xorg 1:7.7+19ubuntu14
>   ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
>   Uname: Linux 5.8.0-43-generic x86_64
>   ApportVersion: 2.20.11-0ubuntu27.16
>   Architecture: amd64
>   BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
>   CasperMD5CheckResult: skip
>   CompositorRunning: None
>   CurrentDesktop: ubuntu:GNOME
>   Date: Fri Feb 12 11:13:48 2021
>   DistUpgraded: Fresh install
>   DistroCodename: focal
>   DistroVariant: ubuntu
>   ExtraDebuggingInterest: I just need to know a workaround
>   GraphicsCard:
>    Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
>      Subsystem: Dell Latitude E7470 [1028:06dc]
>   InstallationDate: Installed on 2021-01-06 (36 days ago)
>   InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
>   MachineType: Dell Inc. Latitude E7470
>   ProcEnviron:
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/usr/bin/zsh
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
>   SourcePackage: xorg
>   Symptom: display
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 08/20/2018
>   dmi.bios.release: 1.20
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 1.20.3
>   dmi.board.name: 047I7V
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A00
>   dmi.chassis.type: 9
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr1.20.3:bd08/20/2018:br1.20:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn047I7V:rvrA00:cvnDellInc.:ct9:cvr:
>   dmi.product.family: Latitude
>   dmi.product.name: Latitude E7470
>   dmi.product.sku: 06DC
>   dmi.sys.vendor: Dell Inc.
>   version.compiz: compiz N/A
>   version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
>   version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
>   version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.99.917+git20200226-1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1915491/+subscriptions
>

Revision history for this message

Jeremy (wa113y3s) wrote on 2021-02-13: Re: Wifi adapter installed but can't be found in Settings

#6

Power management might be crashing the driver, in terminal

sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
systemctl restart network-manager.service

See if it happens again

Revision history for this message

Md. Rezwanul Haque Razib (rezwanul-haque) wrote on 2021-02-14: Re: [Bug 1915491] Re: Wifi adapter installed but can't be found in Settings

#7

Download full text (3.9 KiB)

I execute the above two commands but the issue won't arise like before.

after restarting the network-manager-service it just reconnected to my wifi.

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Sun, Feb 14, 2021 at 3:01 AM Jeremy <email address hidden> wrote:

> Power management might be crashing the driver, in terminal
>
> sudo sed -i 's/3/2/'
> /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
> systemctl restart network-manager.service
>
> See if it happens again
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
> Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
> Incomplete
>
> Bug description:
> # Summary:
> > ## Wifi Adpter Not found
>
> ## Steps to Reproduce:
> - I don't know
>
>
> ## Expected Results:
> Wifi should always be available
>
> ## Problem Description:
> Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
> * * *
>
>
> Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: xorg 1:7.7+19ubuntu14
> ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
> Uname: Linux 5.8.0-43-generic x86_64
> ApportVersion: 2.20.11-0ubuntu27.16
> Architecture: amd64
> BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
> CasperMD5CheckResult: skip
> CompositorRunning: None
> CurrentDesktop: ubuntu:GNOME
> Date: Fri Feb 12 11:13:48 2021
> DistUpgraded: Fresh install
> DistroCodename: focal
> DistroVariant: ubuntu
> ExtraDebuggingInterest: I just need to know a workaround
> GraphicsCard:
> Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
> Subsystem: Dell Latitude E7470 [1028:06dc]
> InstallationDate: Installed on 2021-01-06 (36 days ago)
> InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
> MachineType: Dell Inc. Latitude E7470
> ProcEnviron:
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/usr/bin/zsh
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
> SourcePackage: xorg
> Symptom: display
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 08/20/2018
> dmi.bios.release: 1.20
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: 1.20.3
> dmi.board.name: 047I7V
> dmi.board.vendor: Dell Inc.
> dmi.board.version: A00
> dmi.chassis.type: 9
> dmi.chassis.vendor: Dell Inc.
> dmi.modalias:
> dmi:bvnDellInc.:bvr1.20.3:bd08/20/2018:br1.20:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn047I7V:rvrA00:cvnDellInc.:ct9:cvr:
> dmi.product.family: Latitude
> dmi.pr...

I execute the above two commands but the issue won't arise like before.

after restarting the network-manager-service it just reconnected to my wifi.

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Sun, Feb 14, 2021 at 3:01 AM Jeremy <1915491@bugs.launchpad.net> wrote:

> Power management might be crashing the driver, in terminal
>
> sudo sed -i 's/3/2/'
> /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
> systemctl restart network-manager.service
>
> See if it happens again
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
>   Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
>   Incomplete
>
> Bug description:
>   # Summary:
>   > ## Wifi Adpter Not found
>
>   ## Steps to Reproduce:
>   - I don't know
>
>
>   ## Expected Results:
>   Wifi should always be available
>
>   ## Problem Description:
>   Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
>   * * *
>
>
>   Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 20.04
>   Package: xorg 1:7.7+19ubuntu14
>   ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
>   Uname: Linux 5.8.0-43-generic x86_64
>   ApportVersion: 2.20.11-0ubuntu27.16
>   Architecture: amd64
>   BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
>   CasperMD5CheckResult: skip
>   CompositorRunning: None
>   CurrentDesktop: ubuntu:GNOME
>   Date: Fri Feb 12 11:13:48 2021
>   DistUpgraded: Fresh install
>   DistroCodename: focal
>   DistroVariant: ubuntu
>   ExtraDebuggingInterest: I just need to know a workaround
>   GraphicsCard:
>    Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
>      Subsystem: Dell Latitude E7470 [1028:06dc]
>   InstallationDate: Installed on 2021-01-06 (36 days ago)
>   InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
>   MachineType: Dell Inc. Latitude E7470
>   ProcEnviron:
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/usr/bin/zsh
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
>   SourcePackage: xorg
>   Symptom: display
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 08/20/2018
>   dmi.bios.release: 1.20
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 1.20.3
>   dmi.board.name: 047I7V
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A00
>   dmi.chassis.type: 9
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr1.20.3:bd08/20/2018:br1.20:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn047I7V:rvrA00:cvnDellInc.:ct9:cvr:
>   dmi.product.family: Latitude
>   dmi.product.name: Latitude E7470
>   dmi.product.sku: 06DC
>   dmi.sys.vendor: Dell Inc.
>   version.compiz: compiz N/A
>   version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
>   version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
>   version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.99.917+git20200226-1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1915491/+subscriptions
>

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-02-15: Re: Wifi adapter installed but can't be found in Settings

#8

If the problem happens again then please follow the instructions in comment #3.

If no further comments are added here for 60 days then the bug will close automatically.

Revision history for this message

Md. Rezwanul Haque Razib (rezwanul-haque) wrote on 2021-02-26: Re: [Bug 1915491] Re: Wifi adapter installed but can't be found in Settings

#9

Screenshot from 2021-02-26 10-55-19.png Edit (186.4 KiB, image/png; name="Screenshot from 2021-02-26 10-55-19.png")
Screenshot from 2021-02-26 10-56-36.png Edit (382.9 KiB, image/png; name="Screenshot from 2021-02-26 10-56-36.png")
Screenshot from 2021-02-26 10-57-05.png Edit (387.9 KiB, image/png; name="Screenshot from 2021-02-26 10-57-05.png")
rfkill.txt Edit (192 bytes, text/plain; charset="US-ASCII"; name="rfkill.txt")
iwconfig-output-when-adapter-not-found.txt Edit (431 bytes, text/plain; charset="US-ASCII"; name="iwconfig-output-when-adapter-not-found.txt")

Download full text (4.2 KiB)

Hi Daniel,

The problem happens again today.
I follow the instructions in comments #1 and #3, yet the issue not solved.
I'm attaching the files and screenshots if this helps you to figure out the
problem.

Note: the screenshot and rfkill.txt and iwconfig files taken while I'm
facing the issue.

Solution: Restart the pc when this problem occurs.

[image: Screenshot from 2021-02-26 10-55-19.png]
[image: Screenshot from 2021-02-26 10-56-36.png]
[image: Screenshot from 2021-02-26 10-57-05.png]

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Mon, Feb 15, 2021 at 8:25 AM Daniel van Vugt <email address hidden>
wrote:

> If the problem happens again then please follow the instructions in
> comment #3.
>
> If no further comments are added here for 60 days then the bug will
> close automatically.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
> Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
> Incomplete
>
> Bug description:
> # Summary:
> > ## Wifi Adpter Not found
>
> ## Steps to Reproduce:
> - I don't know
>
>
> ## Expected Results:
> Wifi should always be available
>
> ## Problem Description:
> Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
> * * *
>
>
> Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
> ProblemType: Bug
> DistroRelease: Ubuntu 20.04
> Package: xorg 1:7.7+19ubuntu14
> ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
> Uname: Linux 5.8.0-43-generic x86_64
> ApportVersion: 2.20.11-0ubuntu27.16
> Architecture: amd64
> BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
> CasperMD5CheckResult: skip
> CompositorRunning: None
> CurrentDesktop: ubuntu:GNOME
> Date: Fri Feb 12 11:13:48 2021
> DistUpgraded: Fresh install
> DistroCodename: focal
> DistroVariant: ubuntu
> ExtraDebuggingInterest: I just need to know a workaround
> GraphicsCard:
> Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
> Subsystem: Dell Latitude E7470 [1028:06dc]
> InstallationDate: Installed on 2021-01-06 (36 days ago)
> InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
> MachineType: Dell Inc. Latitude E7470
> ProcEnviron:
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/usr/bin/zsh
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
> SourcePackage: xorg
> Symptom: display
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 08/20/2018
> dmi.bios.release: 1.20
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: 1.20.3
> dmi.board.name...

Hi Daniel,

The problem happens again today.
I follow the instructions in comments #1 and #3, yet the issue not solved.
I'm attaching the files and screenshots if this helps you to figure out the
problem.

Note: the screenshot and rfkill.txt and iwconfig files taken while I'm
facing the issue.

Solution: Restart the pc when this problem occurs.

[image: Screenshot from 2021-02-26 10-55-19.png]
[image: Screenshot from 2021-02-26 10-56-36.png]
[image: Screenshot from 2021-02-26 10-57-05.png]

Sincerely,

*Md Rezwanul Haque Razib*

*Software Engineer*

*Vivasoft Ltd.*

On Mon, Feb 15, 2021 at 8:25 AM Daniel van Vugt <1915491@bugs.launchpad.net>
wrote:

> If the problem happens again then please follow the instructions in
> comment #3.
>
> If no further comments are added here for 60 days then the bug will
> close automatically.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1915491
>
> Title:
>   Wifi adapter installed but can't be found in Settings
>
> Status in gnome-control-center package in Ubuntu:
>   Incomplete
>
> Bug description:
>   # Summary:
>   > ## Wifi Adpter Not found
>
>   ## Steps to Reproduce:
>   - I don't know
>
>
>   ## Expected Results:
>   Wifi should always be available
>
>   ## Problem Description:
>   Sometimes when startup my pc there is no wifi icon on the top right
> corner menu. When checking the wifi settings on the settings window it
> shows that the wifi adapter not found. But after restarting the pc,
> everything back to normal again. This is happening too frequently now.
>
>   * * *
>
>
>   Screenshot:
> https://drive.google.com/file/d/1i1gyhacC9I7zDHs4vGgxra9_7uvCDOR7/view?usp=sharing
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 20.04
>   Package: xorg 1:7.7+19ubuntu14
>   ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
>   Uname: Linux 5.8.0-43-generic x86_64
>   ApportVersion: 2.20.11-0ubuntu27.16
>   Architecture: amd64
>   BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
>   CasperMD5CheckResult: skip
>   CompositorRunning: None
>   CurrentDesktop: ubuntu:GNOME
>   Date: Fri Feb 12 11:13:48 2021
>   DistUpgraded: Fresh install
>   DistroCodename: focal
>   DistroVariant: ubuntu
>   ExtraDebuggingInterest: I just need to know a workaround
>   GraphicsCard:
>    Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07)
> (prog-if 00 [VGA controller])
>      Subsystem: Dell Latitude E7470 [1028:06dc]
>   InstallationDate: Installed on 2021-01-06 (36 days ago)
>   InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
> (20200731)
>   MachineType: Dell Inc. Latitude E7470
>   ProcEnviron:
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/usr/bin/zsh
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-43-generic
> root=UUID=26d49ac7-77fe-4d5d-abbd-c857cbefc6f2 ro quiet splash vt.handoff=7
>   SourcePackage: xorg
>   Symptom: display
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 08/20/2018
>   dmi.bios.release: 1.20
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 1.20.3
>   dmi.board.name: 047I7V
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A00
>   dmi.chassis.type: 9
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr1.20.3:bd08/20/2018:br1.20:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn047I7V:rvrA00:cvnDellInc.:ct9:cvr:
>   dmi.product.family: Latitude
>   dmi.product.name: Latitude E7470
>   dmi.product.sku: 06DC
>   dmi.sys.vendor: Dell Inc.
>   version.compiz: compiz N/A
>   version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
>   version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
>   version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
>   version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.99.917+git20200226-1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1915491/+subscriptions
>

Daniel van Vugt (vanvugt) on 2021-02-26

summary:	- Wifi adapter installed but can't be found in Settings + Dell Latitude E7470 wifi adapter (Intel Corporation Wireless 8260 + [8086:24f3]) installed but can't be found in Settings
Changed in gnome-control-center (Ubuntu):
status:	Incomplete → New

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-02-26: Re: Dell Latitude E7470 wifi adapter (Intel Corporation Wireless 8260 [8086:24f3]) installed but can't be found in Settings

#10

Thanks. The iwconfig output seems to show the wifi adapter is missing at the kernel level. When it was working your kernel log shows the adapter was called 'wlp1s0'... Next time the problem happens, please run this while it is happening:

dmesg > dmesg.txt

and attach the resulting text file here.

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2021-02-26:

#11

FYI other bugs with the same wifi chip: bug 1838836, bug 1880426

no longer affects:	gnome-control-center (Ubuntu)
Changed in linux (Ubuntu):
status:	New → Incomplete
Changed in linux-firmware (Ubuntu):
status:	New → Incomplete
Changed in network-manager (Ubuntu):
status:	New → Incomplete

You-Sheng Yang (vicamo) on 2021-02-26

tags:	added: hwe-networking-wifi
summary:	Dell Latitude E7470 wifi adapter (Intel Corporation Wireless 8260 - [8086:24f3]) installed but can't be found in Settings + [8086:24f3] subsystem [8086:0050]) installed but can't be found in + Settings

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-04-28:

#12

[Expired for linux-firmware (Ubuntu) because there has been no activity for 60 days.]

Changed in linux-firmware (Ubuntu):
status:	Incomplete → Expired

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-04-28:

#13

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]

Changed in network-manager (Ubuntu):
status:	Incomplete → Expired

Revision history for this message

Launchpad Janitor (janitor) wrote on 2021-04-28:

#14

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status:	Incomplete → Expired

	Status	Importance	Assigned to
linux (Ubuntu)	Expired	Undecided	Unassigned
linux-firmware (Ubuntu)	Expired	Undecided	Unassigned
network-manager (Ubuntu)	Expired	Undecided	Unassigned

Ubuntu
network-manager package

Dell Latitude E7470 wifi adapter (Intel Corporation Wireless 8260 [8086:24f3] subsystem [8086:0050]) installed but can't be found in Settings

Bug Description

Other bug subscribers

Bug attachments

Remote bug watches

Ubuntunetwork-manager package

Dell Latitude E7470 wifi adapter (Intel Corporation Wireless 8260 [8086:24f3] subsystem [8086:0050]) installed but can't be found in Settings

Bug Description

Other bug subscribers

Bug attachments

Remote bug watches

Ubuntu
network-manager package