Tested linux-oem-6.17 6.17.0-1010-oem (from ppa:canonical-kernel-team/proposed2) as requested for bug verification.
**System** - Dell Pro 16 Plus (PB16250) - BIOS version: 2.9.x - Ubuntu 24.04.3 LTS (noble) - Kernel tested: 6.17.0-1010-oem **Kernel / media results** - /dev/media0 exists - v4l2-ctl --list-devices shows: ipu7 (PCI:intel-ipu7) with many /dev/video* nodes - Media topology (media-ctl -d /dev/media0 -p): Only Intel IPU7 ISYS Capture nodes linked to Intel IPU7 CSI2 entities are present. No sensor sub-device entity is visible. - v4l2-ctl -d /dev/video0 --all shows: Driver name: isys Card type: ipu7 Default format: 1920x1080, raw Bayer (BG12) — but unsupported by typical v4l2 userspace. **Streaming test** - Attempting capture with ffmpeg (v4l2) fails: ffmpeg -f v4l2 -input_format yuyv422 -video_size 1280x720 -i /dev/video0 -frames:v 1 /tmp/frame.yuv returns: ioctl(VIDIOC_STREAMON): Link has been severed **dmesg relevant excerpt** - Hardware IPU7 and sensor printed: intel-ipu7: Found supported sensor OVTI05C1:00 intel-ipu7: Connected 1 cameras - But INT3472 GPIO/GPE mapping still fails: int3472-discrete INT3472:00: cannot find GPIO chip INTC10B5:00, deferring ... platform INT3472:00: deferred probe pending: int3472-discrete: Failed to get GPIO **libcamera** - `cam --list` still shows no cameras. - libcamera prints “No IPA found in /usr/lib/x86_64-linux-gnu/libcamera”. This matches comment #6 — libcamera needs additional IPU6/IPU7 isys platform config that is not yet available. **Conclusion** - The kernel/media pipeline on 6.17.0-1010-oem enumerates IPU7 nodes but the camera pipeline is *not functional*. - There is no active sensor node in the media topology; streaming fails due to the severed link. - Therefore the bug is **not fixed** with this kernel. Please advise what additional configuration / userspace components are expected for verification (e.g., libcamhal-common, IPA metadata), and if the INT3472 GPIO issue is the known remaining blocker. **Verification tag** I am marking this as verification-failed for linux-oem-6.17. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2136769 Title: v4l2loopback >= 0.14.0 breaks gstreamer/noble To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2136769/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
