apport information ** Tags added: apport-collected xenial
** Description changed: 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. + 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 ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1705900/+attachment/4923943/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1705900 Title: Lenovo e73 USB webcam problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1705900/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
