I reported the bug with the Microsoft one, but the same problem also occurs with Trust WB-5400 webcam.
-- 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/1705900 Title: Lenovo e73 USB webcam problems Status in linux package in Ubuntu: Incomplete Bug description: I'm experiencing problems with USB webcam on Lenovo e73 with Ubuntu 16.04.2 Xenial 32bit. Originally with 4.4 connecting the camera often resulted in complete hang of the system (apparently not even SysRq worked, though I did not test that personally since it is a system I'm administering remotely for a family member). There was always a null pointer dereference just before the hang, so I suspect that is the culprit (see the attached kernel log). After some updates the system no longer hangs. I suspect this was fixed by going from linux 4.4 to 4.8. However, the webcam still often doesn't work and most application just return error. This is usually fixed after several tries, but sometimes it is necessary to reboot computer. Updating BIOS didn't help. The kernel logs still contain the same null pointer dereference with exactly the same stack trace for both 4.8 and 4.10. --- ApportVersion: 2.20.1-0ubuntu2.10 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: user 1852 F.... pulseaudio /dev/snd/controlC0: user 1852 F.... pulseaudio /dev/snd/controlC1: user 1852 F.... pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=de34a223-a620-435a-974a-e29dad30f1ac InstallationDate: Installed on 2017-05-05 (85 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release i386 (20151021) IwConfig: tun0 no wireless extensions. enp2s0 no wireless extensions. lo no wireless extensions. MachineType: LENOVO 10DR002SMC Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=sk_SK.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-58-generic root=UUID=07f94680-ac2c-498b-86e4-72ff6e4bd18f ro quiet splash usbcore.autosuspend=-1 vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-58.63~16.04.1-generic 4.8.17 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.8.0-58-generic N/A linux-backports-modules-4.8.0-58-generic N/A linux-firmware 1.157.11 RfKill: Tags: xenial Uname: Linux 4.8.0-58-generic i686 UpgradeStatus: Upgraded to xenial on 2017-05-05 (85 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 02/13/2017 dmi.bios.vendor: LENOVO dmi.bios.version: FCKT82AUS dmi.board.name: 3098 dmi.board.vendor: LENOVO dmi.board.version: SDK0G00599 WIN dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.modalias: dmi:bvnLENOVO:bvrFCKT82AUS:bd02/13/2017:svnLENOVO:pn10DR002SMC:pvrThinkCentreE73:rvnLENOVO:rn3098:rvrSDK0G00599WIN:cvnLENOVO:ct3:cvr: dmi.product.name: 10DR002SMC dmi.product.version: ThinkCentre E73 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705900/+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
