Launchpad has imported 8 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=81611.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2014-08-04T07:56:31+00:00 rockorequin wrote: Created attachment 145021 guvcview output, uvc trace output, lsusb output guvcview used to work fine with kernel 3.15 and earlier with my laptop webcam, but with kernel 3.16 (amd64) it just shows (and captures) a black screen and reports "Could not grab image (select timeout): Resource temporarily unavailable" or "ignoring empty buffer". With 3.15 it would complain that the resource was temporarily unavailable once or twice, but would then recover and display streaming video. I built the kernel using the same config as the ubuntu mainline builds for 3.16. 'motion' and 'skype' are both able to capture video with 3.16, so the underlying v4l driver looks like it is working. Is video (other) the right component to file this under? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/0 ------------------------------------------------------------------------ On 2014-08-07T14:25:06+00:00 chrylis wrote: I can confirm identical behavior on a Dell M6600 integrated webcam. The device has USB ID 1bcf:280b and is listed as "Sunplus Innovation Technology Inc.". Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/1 ------------------------------------------------------------------------ On 2014-08-08T08:44:01+00:00 rockorequin wrote: I tested and it occurs with 3.16-rc2, so it regressed fairly early on. I couldn't test with 3.16-rc1 in the VM I set up because it failed to boot. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/2 ------------------------------------------------------------------------ On 2014-09-24T03:55:48+00:00 rockorequin wrote: The bug is still present in both 3.16.3 and 3.17-rc6. I started attempting to bisect, but 3.16-rc1 doesn't get past the very early boot stages on the laptop I first saw the problem on (I can't even get a tty prompt in recovery mode). Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/19 ------------------------------------------------------------------------ On 2014-09-30T10:36:56+00:00 suse wrote: I was able to bisect and it looks like commit 61bd8fb37db948154ae01c8ed43a86633ae1d2be introduces the black screen. Using v3.16 and reverting 61bd8fb37db948154ae01c8ed43a86633ae1d2be works in virtualbox. I will try to test the fix on real hardware soon. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/21 ------------------------------------------------------------------------ On 2014-09-30T11:11:16+00:00 suse wrote: OK, laptop test successfully finished. with kernel v3.17-rc6 I need to revert two commits: 8a75ffb81b1c1b6949d191fbef3eaa03fd648852 [media] vb2: fix bytesused == 0 handling and again 61bd8fb37db948154ae01c8ed43a86633ae1d2be [media] vb2: if bytesused is 0, then fill with output buffer length Reverting both commits makes my two webcams working again. (integrated webcam 04f2:b1b4 and external 046d:09a4) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/22 ------------------------------------------------------------------------ On 2014-10-01T12:13:08+00:00 hverkuil wrote: I think you hit this guvcview bug: http://www.mail-archive.com/linux-media@vger.kernel.org/msg80144.html So it's not a driver bug, it's a bug in the application which was exposed by the driver change. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/24 ------------------------------------------------------------------------ On 2022-08-28T12:36:11+00:00 suse wrote: bug report should be closed. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362358/comments/31 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Medium -- 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/1362358 Title: uvcvideo doesn't work with USB webcam with linux 3.16 Status in Linux: Confirmed Status in linux package in Ubuntu: Triaged Status in linux source package in Utopic: Won't Fix Bug description: uvcvideo doesn't work with linux 3.16 on at least two USB webcams. guvcvideo shows a black screen and reports "Could not grab image" or "ignoring empty buffer". The camera works fine with Motion or Skype in linux 3.16. guvcvideo works fine with linux 3.15. There is more info at https://bugzilla.kernel.org/show_bug.cgi?id=81611. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-10-generic 3.16.0-10.15 ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1 Uname: Linux 3.16.0-10-generic x86_64 ApportVersion: 2.14.6-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rocko 1894 F.... pulseaudio CurrentDesktop: Unity Date: Wed Aug 27 17:26:27 2014 HibernationDevice: RESUME=UUID=e586cc1f-5429-445e-b3fa-d15a1f5b54a0 InstallationDate: Installed on 2014-08-22 (5 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140821) IwConfig: eth0 no wireless extensions. lo no wireless extensions. Lsusb: Bus 001 Device 002: ID 0408:2fb1 Quanta Computer, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-10-generic root=UUID=fa1da5bc-d7d9-40bf-9d26-ad7bcf1ab6bc ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-10-generic N/A linux-backports-modules-3.16.0-10-generic N/A linux-firmware 1.132 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1362358/+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
