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Groups > linux.debian.kernel > #91984 > unrolled thread
| Started by | LUCIAN <ky80jqllj@mozmail.com> |
|---|---|
| First post | 2026-04-12 20:00 +0200 |
| Last post | 2026-04-13 21:00 +0200 |
| Articles | 4 — 3 participants |
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Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 LUCIAN <ky80jqllj@mozmail.com> - 2026-04-12 20:00 +0200
Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 Salvatore Bonaccorso <carnil@debian.org> - 2026-04-12 21:00 +0200
Processed: Re: Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-04-12 21:00 +0200
Bug#1133383: marked as done (linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-04-13 21:00 +0200
| From | LUCIAN <ky80jqllj@mozmail.com> |
|---|---|
| Date | 2026-04-12 20:00 +0200 |
| Subject | Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 |
| Message-ID | <MJ7gd-eDxt-3@gated-at.bofh.it> |
Package: linux-image-amd64 Version: 6.12.74-2 Severity: important X-Debbugs-Cc: ky80jqllj@mozmail.com Dear Maintainer, System: Debian Trixie (KDE Plasma) Kernel: 6.12.74+deb13+1-amd64 Device: Internal HP Wide Vision HD Camera (USB ID: 30c9:0069) Issue: The internal webcam is detected but fails to stream video. Details: - /dev/video0 and /dev/video1 are present - v4l2-ctl shows MJPG and YUYV formats correctly - Applications such as Cheese, ffplay, and Signal show a black screen - Camera starts but immediately disconnects Kernel logs show repeated errors: uvcvideo: Failed to resubmit video URB (-19) This is followed by repeated USB device reinitialization. libcamera: - cam -l detects the camera correctly - cam -c1 opens the camera but no preview/output is shown Troubleshooting performed: - Disabled USB autosuspend - Reloaded uvcvideo with quirks - Forced MJPEG and YUYV formats - Reduced resolution and FPS - Tested multiple applications - Issue persists in all cases Result: Camera stream fails immediately after initialization and repeatedly disconnects. Conclusion: This appears to be a regression in the uvcvideo driver or kernel 6.12 affecting this webcam. Expected behavior: The camera should stream video normally via V4L2 and libcamera. Thank you. -- System Information: Debian Release: 13.4 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.12.74+deb13+1-amd64 (SMP w/12 CPU threads; PREEMPT) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-amd64 depends on: ii linux-image-6.12.74+deb13+1-amd64 6.12.74-2 linux-image-amd64 recommends no packages. linux-image-amd64 suggests no packages. -- no debconf information
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| From | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| Date | 2026-04-12 21:00 +0200 |
| Message-ID | <MJ8ch-eEci-5@gated-at.bofh.it> |
| In reply to | #91984 |
Control: tags -1 + moreinfo On Sun, Apr 12, 2026 at 11:19:34PM +0530, LUCIAN wrote: > Package: linux-image-amd64 > Version: 6.12.74-2 > Severity: important > X-Debbugs-Cc: ky80jqllj@mozmail.com > > Dear Maintainer, > > System: Debian Trixie (KDE Plasma) > Kernel: 6.12.74+deb13+1-amd64 > Device: Internal HP Wide Vision HD Camera (USB ID: 30c9:0069) > > Issue: > The internal webcam is detected but fails to stream video. > > Details: > - /dev/video0 and /dev/video1 are present > - v4l2-ctl shows MJPG and YUYV formats correctly > - Applications such as Cheese, ffplay, and Signal show a black screen > - Camera starts but immediately disconnects > > Kernel logs show repeated errors: > uvcvideo: Failed to resubmit video URB (-19) > > This is followed by repeated USB device reinitialization. > > libcamera: > - cam -l detects the camera correctly > - cam -c1 opens the camera but no preview/output is shown > > Troubleshooting performed: > - Disabled USB autosuspend > - Reloaded uvcvideo with quirks > - Forced MJPEG and YUYV formats > - Reduced resolution and FPS > - Tested multiple applications > - Issue persists in all cases > > Result: > Camera stream fails immediately after initialization and repeatedly disconnects. > > Conclusion: > This appears to be a regression in the uvcvideo driver or kernel 6.12 affecting this webcam. > > Expected behavior: > The camera should stream video normally via V4L2 and libcamera. As you concluded this is a regression, which is the previous last kernel which worked without problems? Identified that, can you please do a bisect of the respective 6.12.y upstream stable versions from the last known good to 6.12.74? if you need instructions on how to do the bisect, let me know. Regards, Salvatore
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2026-04-12 21:00 +0200 |
| Subject | Processed: Re: Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 |
| Message-ID | <MJ8ch-eEci-3@gated-at.bofh.it> |
| In reply to | #91984 |
Processing control commands: > tags -1 + moreinfo Bug #1133383 [src:linux] linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 Added tag(s) moreinfo. -- 1133383: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133383 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2026-04-13 21:00 +0200 |
| Subject | Bug#1133383: marked as done (linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12) |
| Message-ID | <MJuFQ-eTnf-21@gated-at.bofh.it> |
| In reply to | #91984 |
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Your message dated Mon, 13 Apr 2026 20:53:11 +0200 with message-id <ad07l4eOk08MxjuZ@eldamar.lan> and subject line Re: Bug#1133383: linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 has caused the Debian Bug report #1133383, regarding linux-image-amd64: Webcam fails to stream (uvcvideo URB -19 error) on kernel 6.12 to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@bugs.debian.org immediately.) -- 1133383: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133383 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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