Public bug reported:
Since cosmic kernel (4.18) and above, I am aware that there will be two
/dev/videoX even there is only one device physically. This issue could
be found in many hardware platforms[1]
[Steps to Reproduce]
1. Install Ubuntu desktop image (cosmic or above) on one of the platforms[1]
2. Check /dev/video*
[Expected Result]
There is only /dev/video0 because there is only one video device (the
default webcam).
[Actual Result]
Both of /dev/video0 and /dev/video1 are shown.
[1] The platforms have this issue:
Dell Vostro 5568
Dell OptiPlex 3011 All In One
Dell Computer Corporation XPS 15 9550
Dell Latitude E5570
Dell Vostro 3459
Dell Vostro 3559
Lenovo ThinkCentre Edge 62z All In One
-------------------------------------------------------------------------
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-21-generic 4.18.0-21.22
ProcVersionSignature: Ubuntu 4.18.0-21.22-generic 4.18.20
Uname: Linux 4.18.0-21-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1388 F.... pulseaudio
Date: Mon Jun 10 11:20:43 2019
InstallationDate: Installed on 2018-11-23 (199 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
MachineType: Dell Inc. Vostro 5568
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-21-generic
root=UUID=89c301bf-b96d-44b3-890f-71987524c021 ro
RelatedPackageVersions:
linux-restricted-modules-4.18.0-21-generic N/A
linux-backports-modules-4.18.0-21-generic N/A
linux-firmware 1.175
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.1
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.0.1:bd07/18/2016:svnDellInc.:pnVostro5568:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Vostro 5568
dmi.product.sku: 0786
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug cosmic taipei-lab uec-images
** Description changed:
Since cosmic kernel (4.18) and above, I am aware that there will be two
/dev/videoX even there is only one device physically. This issue could
be found in many hardware platforms[1]
[Steps to Reproduce]
1. Install Ubuntu desktop image (cosmic or above) on one of the platforms[1]
2. Check /dev/video*
[Expected Result]
There is only /dev/video0 because there is only one video device (the
default webcam).
[Actual Result]
Both of /dev/video0 and /dev/video1 are shown.
-
[1] The platforms have this issue:
Dell Vostro 5568
Dell OptiPlex 3011 All In One
Dell Computer Corporation XPS 15 9550
Dell Latitude E5570
Dell Vostro 3459
Dell Vostro 3559
Lenovo ThinkCentre Edge 62z All In One
+ -------------------------------------------------------------------------
+
+
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-21-generic 4.18.0-21.22
ProcVersionSignature: Ubuntu 4.18.0-21.22-generic 4.18.20
Uname: Linux 4.18.0-21-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: ubuntu 1388 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: ubuntu 1388 F.... pulseaudio
Date: Mon Jun 10 11:20:43 2019
InstallationDate: Installed on 2018-11-23 (199 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.3)
MachineType: Dell Inc. Vostro 5568
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-21-generic
root=UUID=89c301bf-b96d-44b3-890f-71987524c021 ro
RelatedPackageVersions:
- linux-restricted-modules-4.18.0-21-generic N/A
- linux-backports-modules-4.18.0-21-generic N/A
- linux-firmware 1.175
+ linux-restricted-modules-4.18.0-21-generic N/A
+ linux-backports-modules-4.18.0-21-generic N/A
+ linux-firmware 1.175
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/18/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.1
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.0.1:bd07/18/2016:svnDellInc.:pnVostro5568:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Vostro 5568
dmi.product.sku: 0786
dmi.sys.vendor: Dell Inc.
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https://bugs.launchpad.net/bugs/1832239
Title:
cosmic kernel (and above) provides two /dev/videoX device but there
should be only one video device physically
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