This bug is awaiting verification that the linux-oem-6.17/6.17.0-1004.4 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-noble-linux-oem-6.17' to 'verification-done- noble-linux-oem-6.17'. If the problem still exists, change the tag 'verification-needed-noble-linux-oem-6.17' to 'verification-failed- noble-linux-oem-6.17'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-noble-linux-oem-6.17-v2 verification-needed-noble-linux-oem-6.17 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.14 in Ubuntu. https://bugs.launchpad.net/bugs/2114963 Title: [SRU] Do not instantiate SPD5118 sensors on i801 SMBus controllers Status in HWE Next: New Status in linux package in Ubuntu: Fix Released Status in linux-oem-6.14 package in Ubuntu: Invalid Status in linux source package in Noble: Deferred Status in linux-oem-6.14 source package in Noble: Fix Released Status in linux source package in Plucky: In Progress Status in linux-oem-6.14 source package in Plucky: Invalid Status in linux source package in Questing: Fix Released Status in linux-oem-6.14 source package in Questing: Invalid Bug description: [ Impact ] The spd5118 sensor will not function normally if Intel's SMBus has the SPD Write Disable bit set. Notably, during a resume, the following messages would appear because driver is not able to sync back the cached register values: [1300273.242285] spd5118 2-0050: Failed to write b = 0: -6 [1300273.242297] spd5118 2-0050: PM: dpm_run_callback(): spd5118_resume [spd5118] returns -6 [1300273.242309] spd5118 2-0050: PM: failed to resume async: error -6 [ Fix ] Cherry-pick the following 2 patches: 1. i2c: smbus: introduce Write Disable-aware SPD instantiating functions[1] 2. i2c: i801: Do not instantiate spd5118 under SPD Write Disable[2] [ Tests ] 1. Install and boot the kernel. Check dmesg. The following message should not appear: [ 2.819557] spd5118 2-0050: DDR5 temperature sensor: vendor 0x06:0x32 revision 1.6 2. Suspend the system and resume. The error messages should not appear. [ Where the problem could occur ] This makes the spd5118 device not instantiate at all during the i801 controller probe. This was however what the driver author recommended, so let's do it this way before a better solution appears. [Additional Information] [1] https://lore.kernel.org/all/20250430-for-upstream-i801-spd5118-no-instantiate-v2-1-2f54d91ae...@canonical.com/ [2] https://lore.kernel.org/all/20250613-for-upstream-not-instantiate-spd5118-v2-1-cf456ed9b...@canonical.com/ [3] https://lore.kernel.org/all/[email protected]/ To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2114963/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
