** Description changed: + The webcam in Linux has a system that compensates the blinking of + lighting under alternate current. Which cannot be perceived by the human + eye, but when recorded it flickers the image. + + The problem is that depending on the country you are the current blinks + either at 50 or 60 Hz. Linux has its frequency set to 60 Hz by default, + but using that one in a 50 Hz country renders the system noneffective, + getting likely the same flickering as there was no compensatory system + in place. + + You can see the effect in the following video: https://youtu.be/RJU-JmSPF2k + + The computer needs to detect that you are in a 50 Hz country, and change + the setting accordingly. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: cheese 3.18.1-2ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44 Uname: Linux 4.4.0-64-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 CurrentDesktop: Unity Date: Thu Feb 23 02:44:20 2017 InstallationDate: Installed on 2016-05-02 (296 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: MEDIONPC MS-7358 RelatedPackageVersions: cheese 3.18.1-2ubuntu3 cheese-common 3.18.1-2ubuntu3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/18/2008 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 6.00 PG dmi.board.name: MS-7358 dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD dmi.board.version: Fab D dmi.chassis.type: 3 dmi.chassis.vendor: OEM dmi.chassis.version: OEM dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd02/18/2008:svnMEDIONPC:pnMS-7358:pvrOEM:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7358:rvrFabD:cvnOEM:ct3:cvrOEM: dmi.product.name: MS-7358 dmi.product.version: OEM dmi.sys.vendor: MEDIONPC
** Description changed: The webcam in Linux has a system that compensates the blinking of lighting under alternate current. Which cannot be perceived by the human eye, but when recorded it flickers the image. The problem is that depending on the country you are the current blinks either at 50 or 60 Hz. Linux has its frequency set to 60 Hz by default, but using that one in a 50 Hz country renders the system noneffective, getting likely the same flickering as there was no compensatory system in place. You can see the effect in the following video: https://youtu.be/RJU-JmSPF2k The computer needs to detect that you are in a 50 Hz country, and change the setting accordingly. - - ProblemType: Bug - DistroRelease: Ubuntu 16.04 - Package: cheese 3.18.1-2ubuntu3 - ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44 - Uname: Linux 4.4.0-64-generic x86_64 - ApportVersion: 2.20.1-0ubuntu2.4 - Architecture: amd64 - CurrentDesktop: Unity - Date: Thu Feb 23 02:44:20 2017 - InstallationDate: Installed on 2016-05-02 (296 days ago) - InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) - MachineType: MEDIONPC MS-7358 - RelatedPackageVersions: - cheese 3.18.1-2ubuntu3 - cheese-common 3.18.1-2ubuntu3 - SourcePackage: linux - UpgradeStatus: No upgrade log present (probably fresh install) - dmi.bios.date: 02/18/2008 - dmi.bios.vendor: Phoenix Technologies, LTD - dmi.bios.version: 6.00 PG - dmi.board.name: MS-7358 - dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD - dmi.board.version: Fab D - dmi.chassis.type: 3 - dmi.chassis.vendor: OEM - dmi.chassis.version: OEM - dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd02/18/2008:svnMEDIONPC:pnMS-7358:pvrOEM:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7358:rvrFabD:cvnOEM:ct3:cvrOEM: - dmi.product.name: MS-7358 - dmi.product.version: OEM - dmi.sys.vendor: MEDIONPC ** Package changed: cheese (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Changed in: linux (Ubuntu) Status: In Progress => Confirmed ** Summary changed: - Image flickering with 50 Hz lighting + Webcam flickering with 50 Hz lighting ** Summary changed: - Webcam flickering with 50 Hz lighting + Webcam flickers with 50 Hz lighting ** Description changed: The webcam in Linux has a system that compensates the blinking of lighting under alternate current. Which cannot be perceived by the human eye, but when recorded it flickers the image. The problem is that depending on the country you are the current blinks either at 50 or 60 Hz. Linux has its frequency set to 60 Hz by default, but using that one in a 50 Hz country renders the system noneffective, - getting likely the same flickering as there was no compensatory system - in place. + getting likely the same flickering as if there was no compensatory + system in place. You can see the effect in the following video: https://youtu.be/RJU-JmSPF2k The computer needs to detect that you are in a 50 Hz country, and change the setting accordingly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1667180 Title: Webcam flickers with 50 Hz lighting Status in Cheese: Won't Fix Status in linux package in Ubuntu: Confirmed Bug description: The webcam in Linux has a system that compensates the blinking of lighting under alternate current. Which cannot be perceived by the human eye, but when recorded it flickers the image. The problem is that depending on the country you are the current blinks either at 50 or 60 Hz. Linux has its frequency set to 60 Hz by default, but using that one in a 50 Hz country renders the system noneffective, getting likely the same flickering as if there was no compensatory system in place. You can see the effect in the following video: https://youtu.be/RJU-JmSPF2k The computer needs to detect that you are in a 50 Hz country, and change the setting accordingly. To manage notifications about this bug go to: https://bugs.launchpad.net/cheese/+bug/1667180/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
