I inspected test results and noticed that this passed with kernel 5.15.0-118.128, but failed with 5.15.0-121.131 (jammy).
I inspected kernel changes between these versions and didn't notice any changes that would impact either i915 or its i2c interface or i2cdetect userspace library. Kevin Yeh, from the certification team, suspected that this might be missing edid emulator on mering device and afterwards confirmed that this is not a regression. Just now, i2cdetect tests passed. -- 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/2077843 Title: Failure to detect i2c device on Mering Status in Kernel SRU Workflow: New Status in linux package in Ubuntu: Invalid Status in linux source package in Jammy: New Bug description: Mering failed to detect any I2C devices when running the i2c_driver_test.py device test. This issue occurred despite the expectation of detecting at least one I2C device on any I2C bus. Test steps in i2c_driver_test.py: 1. run `i2cdetect -l` to list all the detected buses 2. run `i2cdetect -y -r` on each bus to check if there is any i2c devices Expect log: ``` Detected buses: ['0', '1', '2', '3', '4', '5'] Checking I2C bus 0 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- I2C device detected ``` Test log: ``` Detected buses: ['0', '1', '2', '3', '4', '5'] Checking I2C bus 0 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- No I2C device detected on any I2C bus ``` To manage notifications about this bug go to: https://bugs.launchpad.net/kernel-sru-workflow/+bug/2077843/+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
