Public bug reported: Recent Intel IPU7 drivers commit https://github.com/intel/ipu7-drivers/commit/056b1c3da802ed1c5bf6bd123a2382f8d6b68202 ("PTL PV release candidate 3 on 2025-11-04") contains work-arounds for a not-yet-upstreamed firmware change meant for ABI updates for IPU7.5 devices: ``` /** * TODO: Revert this change after firmware ABI fixed. * This is an internal workaround. * IPU7.5 firmware changed its ABI and breaks * compatibility with IPU7 Lunar Lake. */ ```
This cause IPU7 on Intel PTL platforms fails at starting streaming with dmesg errors: ``` [ 75.466561] intel_ipu7_isys.isys intel_ipu7.isys.40: stream start time out [ 75.466742] intel_ipu7_isys.isys intel_ipu7.isys.40: 00 IPU_INSYS_RESP_TYPE_STREAM_OPEN_DONE stream 0 pin 0 buf_id 0 frame 0 [ 75.466758] intel_ipu7_isys.isys intel_ipu7.isys.40: error group 1 code 6 details [5 0] [ 77.514368] intel_ipu7_isys.isys intel_ipu7.isys.40: stream close time out with error 6 [ 77.514395] intel_ipu7_isys.isys intel_ipu7.isys.40: start stream of firmware failed ``` The corresponding fw blob to be upstreamed is in https://github.com/intel/ipu7-camera- bins/blob/20251104_0740_359/lib/firmware/intel/ipu/ipu7ptl_fw.bin . ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: Incomplete ** Affects: linux-firmware (Ubuntu Noble) Importance: Undecided Status: Incomplete ** Affects: linux-firmware (Ubuntu Questing) Importance: Undecided Status: Incomplete ** Affects: linux-firmware (Ubuntu Resolute) Importance: Undecided Status: Incomplete ** Also affects: linux-firmware (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux-firmware (Ubuntu Questing) Importance: Undecided Status: New ** Also affects: linux-firmware (Ubuntu Resolute) Importance: Undecided Status: New ** Changed in: linux-firmware (Ubuntu Noble) Status: New => Incomplete ** Changed in: linux-firmware (Ubuntu Questing) Status: New => Incomplete ** Changed in: linux-firmware (Ubuntu Resolute) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2138721 Title: intel_ipu7_isys.isys intel_ipu7.isys.40: stream start time out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2138721/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
