[Bug 2156972] Re: Camera output is vague and color is abnormal

This bug was fixed in the package linux-oem-6.17 - 6.17.0-1030.30 --------------- linux-oem-6.17 (6.17.0-1030.30) noble; urgency=medium * noble/linux-oem-6.17: 6.17.0-1030.30 -proposed tracker (LP: #2160672) * Suspend resume time is too long on EliteBook 8 G1a 13 (LP: #2160183) - SAUCE: wifi: ath12k: avoid MHI deinit during suspend -- Kuan-Ying Lee <kuan-ying.lee@canonical.com> Wed, 15 Jul 2026 13:49:00 +0800 ** Changed in: linux-oem-6.17 (Ubuntu Noble) Status: Fix Committed => Fix Released -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2156972 Title: Camera output is vague and color is abnormal Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-6.17 package in Ubuntu: Invalid Status in linux-oem-7.0 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.17 source package in Noble: Fix Released Status in linux-oem-7.0 source package in Noble: Invalid Status in linux source package in Questing: Won't Fix Status in linux-oem-6.17 source package in Questing: Invalid Status in linux-oem-7.0 source package in Questing: Invalid Status in linux source package in Resolute: In Progress Status in linux-oem-6.17 source package in Resolute: Invalid Status in linux-oem-7.0 source package in Resolute: Fix Committed Status in linux source package in Stonking: In Progress Status in linux-oem-6.17 source package in Stonking: Invalid Status in linux-oem-7.0 source package in Stonking: Invalid Bug description: [SRU Justification] [Impact] The camera output is abnormal, and it takes longer time to start the camera. kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Payload checksum (CRC) error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Payload checksum (CRC) error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected [Fix] Upstream commit 477620dccf3e ("media: intel/ipu6: Improve DWC PHY HSFREQRANGE band selection for overlapping ranges") in v7.2-rc1 fixes commit 1e7eeb301696 ("media: intel/ipu6: add the CSI2 DPHY implementation") from v6.10. [Test Plan] 1. capture video stream and verify the video quality. $ gst-launch-1.0 v4l2src ! videoconvert ! avimux ! filesink location=out.avi 2. check no error found in dmesg $ sudo dmesg |grep intel_ipu6_isys [Where problems could occur] The regression can be considered as low, because the patch is meant to locate a band with higher osc_freq_target for best hardware utilization. No other part is touched. [Other Info] While this affects kernels >= v6.10, nominate for all the newer kernels. And since this is already in v7.2-rc1, skip Unstable. ========== original bug report ========== The camera output is abnormal, and it takes longer time to start the camera. I record the video by command: $ gst-launch-1.0 v4l2src ! videoconvert ! avimux ! filesink location=out.avi Some errors reported in the driver: kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Payload checksum (CRC) error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Payload checksum (CRC) error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: DPHY recoverable synchronization error kernel: intel_ipu6_isys.isys intel_ipu6.isys.40: csi2-0 error: Single packet header error corrected Proposed fix was in https://github.com/intel/ipu6-drivers/pull/447. This affects kernel v6.10 and up, which added D-PHY implementation in commit 1e7eeb301696 ("media: intel/ipu6: add the CSI2 DPHY implementation"). It's then submitted into upstream as commit 477620dccf3e ("media: intel/ipu6: Improve DWC PHY HSFREQRANGE band selection for overlapping ranges") in v7.2-rc1. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2156972/+subscriptions