The Cheese video with the unacceptable video flicker. ** Attachment added: "250907_Cheese_Flicker_01.webm" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2120898/+attachment/5907587/+files/250907_Cheese_Flicker_01.webm
-- 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/2120898 Title: Erratic Webcam - Webcam Detection Status in linux package in Ubuntu: Triaged Status in linux source package in Noble: Triaged Bug description: I have been experiencing erratic video webcam performance during Zoom meetings. I have tried to debug and fix this problem for several weeks with no success. But, I think I have found a workaround and a possible clue to the root cause: • first power on the computer without the webcam or microphone • then connected the external USB webcam and microphone. I have 2 computers that I use for Zoom meetings. 1. Computer A: running Ubuntu 20.04 and the latest Zoom client • No video related problems for the past 1-2 years. 2. Computer B: running Ubuntu 24.04 and the latest Zoom client • Erratic video performance the last several months • Is this related to any Ubuntu 24.04 updates? I have an external USB Kiyo webcam and an external USB Amigo Cobra microphone that I move between the 2 computers. I use USB extension cables on both systems to facilitate the ease of connecting and to minimize the risk of damaging the USB port on the computers from multiple plugging. The relevant debug test steps on Computer B: 1. Connect the USB Kiyo and the USB Amigo to the extension cables. 2. Power on the computer 3. lsusb : both the webcam and microphone are detected 4. Cheese: no video, 1. menu > preferences shows a video device \_SB_.PG10.EUSB……. 2. but it also lists the Kiyo on the drop-down menu, select but still no video 5. Zoom: have video 6. Unplug the Kiyo webcam, wait 10-30 sec 7. Re-plug the Kiyo webcam 8. lsusb: both the webcam and microphone are detected, the webcam has a new device ID 9. Cheese: have video 10. Zoom: have video I hosted 2 Zoom meeting on Sunday (8-17-25), and did not experience any noticeable video problems. 1. Power on Computer B 2. Login to a user account 3. Connect the USB Kiyo webcam and the USB Amigo microphone 4. Ubuntu > Settings > Sound, verify that the Amigo microphone is recognized 5. Cheese: verify that I have video 6. Zoom: verify that the I have video, audio, and that the correct devices are detected 7. Host the Zoom meeting Apparently Ubuntu 24.04 has a problem properly detecting the USB devices and provisioning the devices. The workaround seems to work for external USB webcam. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-71-generic 6.8.0-71.71 ProcVersionSignature: Ubuntu 6.8.0-71.71-generic 6.8.12 Uname: Linux 6.8.0-71-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: j-admin 2968 F.... wireplumber /dev/snd/controlC0: j-admin 2968 F.... wireplumber /dev/snd/controlC1: j-admin 2968 F.... wireplumber /dev/snd/seq: j-admin 2964 F.... pipewire CRDA: N/A CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Aug 18 20:21:41 2025 InstallationDate: Installed on 2023-11-04 (653 days ago) InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1) IwConfig: lo no wireless extensions. enp2s0 no wireless extensions. MachineType: Dell Inc. Inspiron 620s ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-71-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-6.8.0-71-generic N/A linux-backports-modules-6.8.0-71-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.15 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/12/2011 dmi.bios.release: 4.6 dmi.bios.vendor: Dell Inc. dmi.bios.version: A00 dmi.board.name: 0GDG8Y dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 00 dmi.modalias: dmi:bvnDellInc.:bvrA00:bd04/12/2011:br4.6:svnDellInc.:pnInspiron620s:pvr00:rvnDellInc.:rn0GDG8Y:rvrA00:cvnDellInc.:ct3:cvr00:skuTobefilledbyO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: Inspiron 620s dmi.product.sku: To be filled by O.E.M. dmi.product.version: 00 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2120898/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
